CA2027056C - Device for detecting and processing electric signals - Google Patents
Device for detecting and processing electric signalsInfo
- Publication number
- CA2027056C CA2027056C CA002027056A CA2027056A CA2027056C CA 2027056 C CA2027056 C CA 2027056C CA 002027056 A CA002027056 A CA 002027056A CA 2027056 A CA2027056 A CA 2027056A CA 2027056 C CA2027056 C CA 2027056C
- Authority
- CA
- Canada
- Prior art keywords
- controller
- drawer
- unit
- chambers
- connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1462—Mounting supporting structure in casing or on frame or rack for programmable logic controllers [PLC] for automation or industrial process control
- H05K7/1467—PLC mounted in a cabinet or chassis
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Vehicle Body Suspensions (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Electrophonic Musical Instruments (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Surgical Instruments (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Patch Boards (AREA)
Abstract
The invention refers to a device for detecting and processing electric signals, having a device housing (1) which is divided into drawer chambers (2) and (4) which are open toward the front, in which connection within one drawer chamber (2) there can be arranged a controller drawer (3) which contains an electronic controller unit and in a second drawer chamber (4) there can be arranged a power-pack drawer (5) which contains a power pack. The controller unit and the power pack can be connected by means of lines, both to each other and to connection contacts (31) for external connections. In further drawer chambers (2) and (4) which are open towards the front of the device housing (1) there can be arranged a controller drawer (3) having a second electronic controller unit which is identical to the first controller unit and a power-pack drawer (5) having a second power pack which is identical to the first power pack, which can be connected by lines both to each other and to connection contacts (31) for external connections. The first controller unit can be supplied with power by the first power pack and the second controller units supplied with power by the second power pack. Input signals can be fed to both controller units simultaneously in parallel from the outside via the lines and can be processed synchronously by both controller units. Depending on the processing of this signal and the status of the controller units, output signals can be produced exclusively by one of the controller units.
Description
-20270S6 \~
Device for Detecti~g and Processing Electric Signals The present invention relates to a device for detecting and processing electric signals, having a device housing which is divided into drawer chambers which are open towards the front, in which connection a controller drawer containing an electronic controller unit can be arranged in one drawer chamber and a power-pack drawer containing a power pack can be arranged in a second drawer chamber, the controller unit and the power pack being adapted to be connected by lines both to each other and to connection contacts for external connections.
In such devices there is the problem that in order to replace a controller unit or a power pack, it is necessary to interrupt the operation until the replacement has been effected, due to the construction of the device.
The object of the present invention, therefore, is to create a device of the aforementioned type which permits replacement of a controller unit without interrupting operation.
This object i8 achieved in accordance with the invention in the manner that within further drawer chambers which are open towards the front side of the device housing there can be arranged a controller drawer having a second electronic 20270a6 controller unit which is identical to the first controller unit and a power-pack drawer having a second power pack identical to the first power pack, they being adapted to be connected to each other as well as to connection contacts for external connections by means of lines; that the first controller unit can be supplied with power by the first power pack and the second controller unit by the second power pack;
that input signals for the lines can be fed to both controller units simultaneously in parallel from the outside and can be processed synchronously by both controller units;
and that, depending on the processing of the signal and/or the status of the controller units, output signals can be produced exclusively by one of the controller units. With this construction, the two controller units process the input signals separately and synchronously and both of them hold the output information ready for access, at their output, in which connection, however, the output information can actually be accessed only from one controller unit. From which of the controller units the output information is accessed depends, when the controller units are intact, for instance, on which of them the output information is first present after the placing in operation of the device.
In case of a defect in a controller unit, the unit gives off information to this effect to the other controller unit so that the output information can then be accessed at the output of the latter.
The device operates in accordance with the same principle also in the absence of one of the controller units since, in that case, the controller unit present considers the absence of the other controller unit to be a defect and maintains the output information ready for access at its output.
Each controller unit has preferably one of the power packs associated with it. In this way, the device is fully operative even if only one controller unit and the power pack associated with it are present.
If controller units and power packs are developed to be connectable to a connection circuit board which i5 arranged in the device housing and on which the lines are developed and the connecting contacts arranged, then the external connections such as data cable and power supply can be retained in simple manner via the connection contacts if a controller unit or a power pack is removed from the apparatus or connected to the apparatus.
The connection circuit board preferably covers the bottom of the drawer chambers which is opposite the front side and has mating plug contacts connected to the lines, into which plug contacts arranged on the rear of the power-pack drawers and/or the controller drawers can be introduced so that by simple removal or introduction of the controller or power-pack drawers complete assembling or disassembling is effected. This is possible even during operation when the device is under voltage.
Simple construction and easy accessibility to the connection contacts result from the fact that the connection circuit board extends beyond the region of the drawer chambers into the region of a contacting chamber which is arranged in the device housing to the side of the drawer chambers and within the region of which the connecting contacts for external connections are arranged on the connection circuit board.
The connection contacts are preferably plug contacts.
If the opening on the front side of the contacting chamber can be covered by a cover plate, the cover plate being swingable around an axis of swing extending along a side edge of the opening, then direct access to the connection contacts is possible.
If the bottom and/or the cover of the device housing has a cable lead-through opening in the region of the contacting chamber, then the cables can be conducted within the device housing to a further device arranged above or below the device.
This is also possible in the case of another device arranged laterally adjacent the contacting chamber if the side wall of the contacting chamber facing away from the drawer chambers has a cable lead-through opening, the cable lead-through opening being preferably arranged in the upper and/or lower region of the side wall.
For the simple closing of the drawer chambers, the front openings of the drawer chambers can be closed by front plates of the controller drawers and/or power-pack drawers.
For the leading away of the heat produced by the heat generating parts of power pack and controller unit, fan chamber can be arranged in the device housing below the drawer chambers, in which fan chamber there is arranged a fan unit by which the air drawn in from the outside can be blown via connecting openings into the drawer chambers, the drawer chambers being preferably separated from the fan chamber by a perforated plate. For simple separate assembly and -20270~6 disassembly, the fan unit can be a drawer unit which can be inserted into the fan chamber.
For the simultaneous flow of cooling air through all regions of the drawer chambers, the fan unit can have a plurality of fans arranged distributed over the plane of the fan chamber, the fans being preferably arranged on a common support plate.
As an additional function, the support plate can be a circuit board which can be contacted with the connection circuit board and on which electronic parts may possibly be arranged.
Easy installation with precise positioning is obtained in the manner that the support plate can be introduced into insertion guides of the fan chamber.
In order that only clean air flows through the drawer chambers, a filtering unit through which outside air can be drawn by the fan unit can be arranged in the fan chamber on the side of the fan unit opposite the drawer chambers.
The combination of the blowing of clean air into the drawer chambers has the advantage that no Particles of dirt can arrive on the electronic parts arranged there and cause defects. The slightly higher internal pressure in the device housing produced by the air which is blown in prevents dirt 20270~6 from entering the device housing at any large or small openings or cracks in the device housing.
In one simple construction, the filter unit can have a rigid carrier which has air-pervious filter regions in the regions opposite the fans, in which case, for simply assembly and disassembly, for instance, for a change in filters, the carrier can be introduced into the fan chamber guided in guides.
For protection against damage and in order to avoid the entrance of clean air behind the filter unit, the front opening of the fan unit can be closed by a cover. For the entrance of air, the bottom of the fan chamber can be formed by a perforated plate. If the cover of the device housing in the region of the drawer chambers is also formed by a perforated plate, several identical devices arranged one above the other can form in the region of their drawer chambers a chimney which can be passed through by cooling air.
Within a controller drawer there can be arranged a first computer board bearing a central computer unit which board has plug contact means on which further circuit boards can be placed in electrically connecting manner, the further circuit -20270~6 boards being possibly, for instance, input and output modules.
Where the expansion of operation is necessary, a second expansion computer board bearing a central computer unit can be arranged in the controller drawer, it having plug contact means on which further circuit boards can be placed in an electrically conductive manner.
In this case, easy exchangeability is obtained if the controller drawer has drawer guides into which the computer board and/or the expansion computer board can be introduced.
The computer board and the expansion computer board can in simple manner be conductively connected to each other by a cable, the cable being preferably a ribbon cable.
If the computer board and the expansion computer board can be arranged spaced from and approximately parallel to each other in the controller drawer, the circuit boards of computer board and expansion computer board being adapted to be arranged extending approximately at a right angle away from each other, there then results not only a smaller space requirement but also a good flow of cooling air.
For this purpose, furthermore, the controller drawer is preferably open in its bottom and cover regions.
In order to immediately determine the failure of a controller unit, the controller unit can have a circuit by a self-test which an error signal or a "good" signal can be produced, depending on the status of the controller unit.
In order to avoid the giving off of incorrect output information, the output of a controller unit can be blocked by an error signal of this controller unit.
In order that no interruption in operation takes place in the event of a defect of a controller unit, it can be made possible that an error signal of a controller unit, brings about activation of the other controller unit, as a result of which the other controller unit is activateable so that dependable output information is available without interruption from the other controller unit.
One embodiment of the invention is shown in the drawing and will be described in further detail below:
Figure 1 is a front view of a closed device for the detection and processing of electric signals;
Figure 2 is a front view of the device of Figure 1 in opened condition;
Figure 3 is a partial side view seen from the right-hand side of the device of Figure 1, seen in partial section, igure 4 is a controller drawer of the device of Figure 1, seen in partial section;
igure 5 i8 a side view of the controller drawer of Figure 4;
igure 6 is a fan unit of a device according to Figure 1, as seen in top view;
igure 7 is a side view of the fan unit of Figure 6;
igure 8 is a filter unit of the device of Figure 1, seen in top view;
igure 9 is the filter unit of Figure 8, seen in side view;
Figure 10 is a power-pack drawer of the device, in front view igure 11 shows the power-pack drawer of Figure 1 seen in side view igure 12 is a block diagram of second controller units and of the connection circuit board of the device in accordance with Figure 1.
The device shown in the drawings has a device housing 1, which is divided into a drawer chamber 2 to receive two controller drawers 3 and alongside of it, on the left, two drawer chambers 4 arranged one above the other to receive two power-pack drawers.
Below the drawer chambers 2 and 4 there is divided off in the device housing 1 a fan chamber 6 which extends over the entire width of the drawer chambers 2 and 4. To the right, alongside the drawer chamber 2 and the fan chamber 6, a contacting chamber 7 is divided off in the device housing 1.
As can be noted from Figure 1, a power-pack drawer 5 is arranged in the upper drawer chamber 4 and a controller drawer 3 in the left hand half of the drawer chamber 2, while the lower drawer chamber 4 and the right-hand half of the drawer chamber 2 are closed by blinds and empty.
The contacting chamber 7 is closed by a closure plate 8 which is swingable for opening and closing around a pivot axis 10 which extends along the left-side edge of the front opening 9 of the contacting chamber 7.
The front opening of the fan chamber 6 can also be closed by a cover 12.
Within the fan chamber 6, drawer guides 13 and guides 14 are arranged one above the other in two planes, a carrier plate 15 of a fan unit 16 being adapted to be inserted into the drawer guides 13 arranged in the upper plane and the carrier 17 of a filter unit 24 being adapted to be inserted in the front into the guides 14 arranged in the lower plane.
-Both the bottom 18 of the fan chamber 6 and the partition 19 between the fan chambér 6 and drawer chambers 2 and 4 are developed as perforated plates.
~ imilarly the cover 20 of the device housing 1 is developed as a perforated plate in the region of the drawer chambers 2 and 4.
As shown in further detail in Figures 6 and 7, four fans 21 are arranged distributed on the support plate 15, by means of which fans outside air is drawn in over the filter unit 24 and blown into the drawer chambers 2 and 4 and then emerges through the cover 20.
On the front side of the support plate 15 which is simultaneously developed as a circuit board, there is arranged a vertical protective blind 22 in order to protect electronic parts 23 present on the support plate 15 from damage.
The filter unit 24, which is shown in further detail in Figures 2 and 8, consists of a rigid carrier 17 which has cut outs 25 in the regions opposite the fans 21, which cut outs are covered by filter mats 26 and form air-pervious filter regions.
As can be noted, in particular, from Fignre 2, in the region of the bottom lying opposite t~le front of the device -housing 1 there is a connection circuit board 27 which extends over the drawer chambers 2 and 4, the fan chamber 6 and the contacting chamber 7.
In the region of the drawer chambers 4, mating plug contacts 28 are arranged on the connection circuit board 27 and mating plug contacts are arranged in the region of the drawer chamber 2 they being connected in electrically conductive manner to corresponding plug contacts on the rear sides of the power-pack drawers S and controller drawers 3 upon the insertion of these drawers into their drawer chambers.
Similarly, in the region of the fan chamber 6 there is a mating plug contact 30 for the electrically conductive connection of the fan unit 16 to the connection circuit board 27.
Via the conductive paths (not shown) of the connection circuit board 27, the different units of the device are connected to each other as well as to connecting contacts 31 developed as plug contacts which are arranged in the region of the contacting chamber 7 and with which there can be connected external connections which lead via electric lines to external units such as, for instance, the power line and control and sensor units.
Since, as can be noted, in particular, from Figure 3, the bottom and the cover of the device housing 1 are open in the region of the contacting chamber 7, the electric lines from the connecting contacts 31 are conducted directly to other devices which are arranged vertically above or below the device.
A cable lead-through opening 33 which is developed in the upper region of the free side wall 32 of the contacting chamber 7 permits the lines also to extend out laterally.
Figures 4 and 5 show a controller drawer 3 which is provided with guide ledges which can be introduced into corresponding guide rails in the device housing 1. On the front side, the controller drawer 3 is closed by a front plate 34 which also serves for the closing of the drawer chamber 2.
The controller drawer 3 has drawer guides 35 into which a computer board 36 and an expansion computer board 37 can be introduced in such a manner that they are arranged standing vertically at a distance apart from each other and approximately parallel to each other in the controller drawer 3.
Via a ribbon cable 38, the computer board 36 and the expansion computer board 37 are conductively connected to each other. The two boards 36 and 37 are provided with computer units (not shown).
Furthermore, the boards bear plug contact devices to which circuit boards 39 can be attached in an electrically conductive manner. In this connection, the circuit boards 39 of the computer board 36 and the expansion board 37 are arranged directed towards each other on their boards 36 and 37 for the vertical blowing of cooling air through the controller drawer 3, the latter is open in its bottom and top regions.
As can be noted from Figures 10 and 11, the power-pack drawer 5 has approximately the same external construction as the controller drawer 3. Its front side is closed by a front plate 40 and it also has guide ledges which can be introduced into corresponding guide rails of the drawer chamber 4. In the block diagram shown in Figure 12, the central unit surrounded by a dash-dot line forms the connection circuit board 27 and the two outer units surrounded by dot-dash lines represent a controller unit 41 and a controller unit 41' respectively of a controller drawer 3.
The connection circuit board 27 is provided with an output connection contact 43 and an input connection contact 44.
Via a synchronizing line 45, synchronization units 46 and 46' of the controller units 41 and 41' are connected to each other, they seeing to synchronous operation of the controller units 41 and 41'.
By means of a self-test circuit (not shown), the two controller units 41 and 41' continuously test each other and from their computers 50 and 50',via test lines 42 and 42' respectively conduct a corresponding signal to controller status units 47 and 47' respectively.
Via status lines 48 and 48', status signals are fed by the controller status units 47 and 47' to status units 49' and 49 respectively.
From the synchronization units 46 and 46', the controller status units 47 and 47' and the status units 49 and 49' signals are conducted, corresponding to their input signals, to a status evaluation 51 and 51' respectively.
If no errors are detected by the self-test circuits, then one output module 52 or 52' and one controller unit 41 or 41' receives, via output lines 53 and 53', an opening signal so that the output module 52 or 52' can feed information obtained from the computers 50 and 50' respectively to the output connection contact 43.
At the same time, the other output module 52' or 52 receives a blocking signal and cannot feed any information to the output connection contact 53.
If a self-test circuit finds an error in a controller unit 41 or 41', the status evaluation 51 or Sl' of this controller unit 41 or 41' feeds a blocking signal to its output module 52 or 52'. At the same time the status evaluation 51' or 51 of the other controller unit 41' or 41 conducts an opening signal to its output module 52' or 52 so that this information obtained from the computer 50' or 50 can be fed to the output connection contact 43.
The input information which is fed via the input connection contact 44 to the input modules 54 is fed via input lines 55 continuously to both computers 50 and 50' and can be processed there.
Device for Detecti~g and Processing Electric Signals The present invention relates to a device for detecting and processing electric signals, having a device housing which is divided into drawer chambers which are open towards the front, in which connection a controller drawer containing an electronic controller unit can be arranged in one drawer chamber and a power-pack drawer containing a power pack can be arranged in a second drawer chamber, the controller unit and the power pack being adapted to be connected by lines both to each other and to connection contacts for external connections.
In such devices there is the problem that in order to replace a controller unit or a power pack, it is necessary to interrupt the operation until the replacement has been effected, due to the construction of the device.
The object of the present invention, therefore, is to create a device of the aforementioned type which permits replacement of a controller unit without interrupting operation.
This object i8 achieved in accordance with the invention in the manner that within further drawer chambers which are open towards the front side of the device housing there can be arranged a controller drawer having a second electronic 20270a6 controller unit which is identical to the first controller unit and a power-pack drawer having a second power pack identical to the first power pack, they being adapted to be connected to each other as well as to connection contacts for external connections by means of lines; that the first controller unit can be supplied with power by the first power pack and the second controller unit by the second power pack;
that input signals for the lines can be fed to both controller units simultaneously in parallel from the outside and can be processed synchronously by both controller units;
and that, depending on the processing of the signal and/or the status of the controller units, output signals can be produced exclusively by one of the controller units. With this construction, the two controller units process the input signals separately and synchronously and both of them hold the output information ready for access, at their output, in which connection, however, the output information can actually be accessed only from one controller unit. From which of the controller units the output information is accessed depends, when the controller units are intact, for instance, on which of them the output information is first present after the placing in operation of the device.
In case of a defect in a controller unit, the unit gives off information to this effect to the other controller unit so that the output information can then be accessed at the output of the latter.
The device operates in accordance with the same principle also in the absence of one of the controller units since, in that case, the controller unit present considers the absence of the other controller unit to be a defect and maintains the output information ready for access at its output.
Each controller unit has preferably one of the power packs associated with it. In this way, the device is fully operative even if only one controller unit and the power pack associated with it are present.
If controller units and power packs are developed to be connectable to a connection circuit board which i5 arranged in the device housing and on which the lines are developed and the connecting contacts arranged, then the external connections such as data cable and power supply can be retained in simple manner via the connection contacts if a controller unit or a power pack is removed from the apparatus or connected to the apparatus.
The connection circuit board preferably covers the bottom of the drawer chambers which is opposite the front side and has mating plug contacts connected to the lines, into which plug contacts arranged on the rear of the power-pack drawers and/or the controller drawers can be introduced so that by simple removal or introduction of the controller or power-pack drawers complete assembling or disassembling is effected. This is possible even during operation when the device is under voltage.
Simple construction and easy accessibility to the connection contacts result from the fact that the connection circuit board extends beyond the region of the drawer chambers into the region of a contacting chamber which is arranged in the device housing to the side of the drawer chambers and within the region of which the connecting contacts for external connections are arranged on the connection circuit board.
The connection contacts are preferably plug contacts.
If the opening on the front side of the contacting chamber can be covered by a cover plate, the cover plate being swingable around an axis of swing extending along a side edge of the opening, then direct access to the connection contacts is possible.
If the bottom and/or the cover of the device housing has a cable lead-through opening in the region of the contacting chamber, then the cables can be conducted within the device housing to a further device arranged above or below the device.
This is also possible in the case of another device arranged laterally adjacent the contacting chamber if the side wall of the contacting chamber facing away from the drawer chambers has a cable lead-through opening, the cable lead-through opening being preferably arranged in the upper and/or lower region of the side wall.
For the simple closing of the drawer chambers, the front openings of the drawer chambers can be closed by front plates of the controller drawers and/or power-pack drawers.
For the leading away of the heat produced by the heat generating parts of power pack and controller unit, fan chamber can be arranged in the device housing below the drawer chambers, in which fan chamber there is arranged a fan unit by which the air drawn in from the outside can be blown via connecting openings into the drawer chambers, the drawer chambers being preferably separated from the fan chamber by a perforated plate. For simple separate assembly and -20270~6 disassembly, the fan unit can be a drawer unit which can be inserted into the fan chamber.
For the simultaneous flow of cooling air through all regions of the drawer chambers, the fan unit can have a plurality of fans arranged distributed over the plane of the fan chamber, the fans being preferably arranged on a common support plate.
As an additional function, the support plate can be a circuit board which can be contacted with the connection circuit board and on which electronic parts may possibly be arranged.
Easy installation with precise positioning is obtained in the manner that the support plate can be introduced into insertion guides of the fan chamber.
In order that only clean air flows through the drawer chambers, a filtering unit through which outside air can be drawn by the fan unit can be arranged in the fan chamber on the side of the fan unit opposite the drawer chambers.
The combination of the blowing of clean air into the drawer chambers has the advantage that no Particles of dirt can arrive on the electronic parts arranged there and cause defects. The slightly higher internal pressure in the device housing produced by the air which is blown in prevents dirt 20270~6 from entering the device housing at any large or small openings or cracks in the device housing.
In one simple construction, the filter unit can have a rigid carrier which has air-pervious filter regions in the regions opposite the fans, in which case, for simply assembly and disassembly, for instance, for a change in filters, the carrier can be introduced into the fan chamber guided in guides.
For protection against damage and in order to avoid the entrance of clean air behind the filter unit, the front opening of the fan unit can be closed by a cover. For the entrance of air, the bottom of the fan chamber can be formed by a perforated plate. If the cover of the device housing in the region of the drawer chambers is also formed by a perforated plate, several identical devices arranged one above the other can form in the region of their drawer chambers a chimney which can be passed through by cooling air.
Within a controller drawer there can be arranged a first computer board bearing a central computer unit which board has plug contact means on which further circuit boards can be placed in electrically connecting manner, the further circuit -20270~6 boards being possibly, for instance, input and output modules.
Where the expansion of operation is necessary, a second expansion computer board bearing a central computer unit can be arranged in the controller drawer, it having plug contact means on which further circuit boards can be placed in an electrically conductive manner.
In this case, easy exchangeability is obtained if the controller drawer has drawer guides into which the computer board and/or the expansion computer board can be introduced.
The computer board and the expansion computer board can in simple manner be conductively connected to each other by a cable, the cable being preferably a ribbon cable.
If the computer board and the expansion computer board can be arranged spaced from and approximately parallel to each other in the controller drawer, the circuit boards of computer board and expansion computer board being adapted to be arranged extending approximately at a right angle away from each other, there then results not only a smaller space requirement but also a good flow of cooling air.
For this purpose, furthermore, the controller drawer is preferably open in its bottom and cover regions.
In order to immediately determine the failure of a controller unit, the controller unit can have a circuit by a self-test which an error signal or a "good" signal can be produced, depending on the status of the controller unit.
In order to avoid the giving off of incorrect output information, the output of a controller unit can be blocked by an error signal of this controller unit.
In order that no interruption in operation takes place in the event of a defect of a controller unit, it can be made possible that an error signal of a controller unit, brings about activation of the other controller unit, as a result of which the other controller unit is activateable so that dependable output information is available without interruption from the other controller unit.
One embodiment of the invention is shown in the drawing and will be described in further detail below:
Figure 1 is a front view of a closed device for the detection and processing of electric signals;
Figure 2 is a front view of the device of Figure 1 in opened condition;
Figure 3 is a partial side view seen from the right-hand side of the device of Figure 1, seen in partial section, igure 4 is a controller drawer of the device of Figure 1, seen in partial section;
igure 5 i8 a side view of the controller drawer of Figure 4;
igure 6 is a fan unit of a device according to Figure 1, as seen in top view;
igure 7 is a side view of the fan unit of Figure 6;
igure 8 is a filter unit of the device of Figure 1, seen in top view;
igure 9 is the filter unit of Figure 8, seen in side view;
Figure 10 is a power-pack drawer of the device, in front view igure 11 shows the power-pack drawer of Figure 1 seen in side view igure 12 is a block diagram of second controller units and of the connection circuit board of the device in accordance with Figure 1.
The device shown in the drawings has a device housing 1, which is divided into a drawer chamber 2 to receive two controller drawers 3 and alongside of it, on the left, two drawer chambers 4 arranged one above the other to receive two power-pack drawers.
Below the drawer chambers 2 and 4 there is divided off in the device housing 1 a fan chamber 6 which extends over the entire width of the drawer chambers 2 and 4. To the right, alongside the drawer chamber 2 and the fan chamber 6, a contacting chamber 7 is divided off in the device housing 1.
As can be noted from Figure 1, a power-pack drawer 5 is arranged in the upper drawer chamber 4 and a controller drawer 3 in the left hand half of the drawer chamber 2, while the lower drawer chamber 4 and the right-hand half of the drawer chamber 2 are closed by blinds and empty.
The contacting chamber 7 is closed by a closure plate 8 which is swingable for opening and closing around a pivot axis 10 which extends along the left-side edge of the front opening 9 of the contacting chamber 7.
The front opening of the fan chamber 6 can also be closed by a cover 12.
Within the fan chamber 6, drawer guides 13 and guides 14 are arranged one above the other in two planes, a carrier plate 15 of a fan unit 16 being adapted to be inserted into the drawer guides 13 arranged in the upper plane and the carrier 17 of a filter unit 24 being adapted to be inserted in the front into the guides 14 arranged in the lower plane.
-Both the bottom 18 of the fan chamber 6 and the partition 19 between the fan chambér 6 and drawer chambers 2 and 4 are developed as perforated plates.
~ imilarly the cover 20 of the device housing 1 is developed as a perforated plate in the region of the drawer chambers 2 and 4.
As shown in further detail in Figures 6 and 7, four fans 21 are arranged distributed on the support plate 15, by means of which fans outside air is drawn in over the filter unit 24 and blown into the drawer chambers 2 and 4 and then emerges through the cover 20.
On the front side of the support plate 15 which is simultaneously developed as a circuit board, there is arranged a vertical protective blind 22 in order to protect electronic parts 23 present on the support plate 15 from damage.
The filter unit 24, which is shown in further detail in Figures 2 and 8, consists of a rigid carrier 17 which has cut outs 25 in the regions opposite the fans 21, which cut outs are covered by filter mats 26 and form air-pervious filter regions.
As can be noted, in particular, from Fignre 2, in the region of the bottom lying opposite t~le front of the device -housing 1 there is a connection circuit board 27 which extends over the drawer chambers 2 and 4, the fan chamber 6 and the contacting chamber 7.
In the region of the drawer chambers 4, mating plug contacts 28 are arranged on the connection circuit board 27 and mating plug contacts are arranged in the region of the drawer chamber 2 they being connected in electrically conductive manner to corresponding plug contacts on the rear sides of the power-pack drawers S and controller drawers 3 upon the insertion of these drawers into their drawer chambers.
Similarly, in the region of the fan chamber 6 there is a mating plug contact 30 for the electrically conductive connection of the fan unit 16 to the connection circuit board 27.
Via the conductive paths (not shown) of the connection circuit board 27, the different units of the device are connected to each other as well as to connecting contacts 31 developed as plug contacts which are arranged in the region of the contacting chamber 7 and with which there can be connected external connections which lead via electric lines to external units such as, for instance, the power line and control and sensor units.
Since, as can be noted, in particular, from Figure 3, the bottom and the cover of the device housing 1 are open in the region of the contacting chamber 7, the electric lines from the connecting contacts 31 are conducted directly to other devices which are arranged vertically above or below the device.
A cable lead-through opening 33 which is developed in the upper region of the free side wall 32 of the contacting chamber 7 permits the lines also to extend out laterally.
Figures 4 and 5 show a controller drawer 3 which is provided with guide ledges which can be introduced into corresponding guide rails in the device housing 1. On the front side, the controller drawer 3 is closed by a front plate 34 which also serves for the closing of the drawer chamber 2.
The controller drawer 3 has drawer guides 35 into which a computer board 36 and an expansion computer board 37 can be introduced in such a manner that they are arranged standing vertically at a distance apart from each other and approximately parallel to each other in the controller drawer 3.
Via a ribbon cable 38, the computer board 36 and the expansion computer board 37 are conductively connected to each other. The two boards 36 and 37 are provided with computer units (not shown).
Furthermore, the boards bear plug contact devices to which circuit boards 39 can be attached in an electrically conductive manner. In this connection, the circuit boards 39 of the computer board 36 and the expansion board 37 are arranged directed towards each other on their boards 36 and 37 for the vertical blowing of cooling air through the controller drawer 3, the latter is open in its bottom and top regions.
As can be noted from Figures 10 and 11, the power-pack drawer 5 has approximately the same external construction as the controller drawer 3. Its front side is closed by a front plate 40 and it also has guide ledges which can be introduced into corresponding guide rails of the drawer chamber 4. In the block diagram shown in Figure 12, the central unit surrounded by a dash-dot line forms the connection circuit board 27 and the two outer units surrounded by dot-dash lines represent a controller unit 41 and a controller unit 41' respectively of a controller drawer 3.
The connection circuit board 27 is provided with an output connection contact 43 and an input connection contact 44.
Via a synchronizing line 45, synchronization units 46 and 46' of the controller units 41 and 41' are connected to each other, they seeing to synchronous operation of the controller units 41 and 41'.
By means of a self-test circuit (not shown), the two controller units 41 and 41' continuously test each other and from their computers 50 and 50',via test lines 42 and 42' respectively conduct a corresponding signal to controller status units 47 and 47' respectively.
Via status lines 48 and 48', status signals are fed by the controller status units 47 and 47' to status units 49' and 49 respectively.
From the synchronization units 46 and 46', the controller status units 47 and 47' and the status units 49 and 49' signals are conducted, corresponding to their input signals, to a status evaluation 51 and 51' respectively.
If no errors are detected by the self-test circuits, then one output module 52 or 52' and one controller unit 41 or 41' receives, via output lines 53 and 53', an opening signal so that the output module 52 or 52' can feed information obtained from the computers 50 and 50' respectively to the output connection contact 43.
At the same time, the other output module 52' or 52 receives a blocking signal and cannot feed any information to the output connection contact 53.
If a self-test circuit finds an error in a controller unit 41 or 41', the status evaluation 51 or Sl' of this controller unit 41 or 41' feeds a blocking signal to its output module 52 or 52'. At the same time the status evaluation 51' or 51 of the other controller unit 41' or 41 conducts an opening signal to its output module 52' or 52 so that this information obtained from the computer 50' or 50 can be fed to the output connection contact 43.
The input information which is fed via the input connection contact 44 to the input modules 54 is fed via input lines 55 continuously to both computers 50 and 50' and can be processed there.
Claims (37)
1. A device for detecting and processing electric signals, comprising a device housing having a front and a back and being divided into drawer chambers which are open towards the front;
a first controller drawer containing a first electronic controller unit disposed in one of said drawer chambers;
a first power-pack drawer containing a first power pack disposed in a second of said drawer chambers;
connection lines and connection contacts, the connection lines connecting the controller unit and the power pack to each other and to the connection contacts for external connections;
further drawer chambers which are open towards the front of the device housing;
a second controller drawer located in one of said further drawer chambers and having a second electronic controller unit identical to the first controller unit;
a second power-pack drawer located in a second of said further drawer chambers and having a second power pack which is identical to the first power pack, the second controller unit and the second power pack being connected by said connection lines both to each other and to the connection contacts for external connections; and wherein the first controller unit is supplied with energy by the first power pack and the second controller unit is supplied with energy by the second power pack;
input signals are to be fed to both controller units simultaneously in parallel from a location outside the housing via the connection lines to be processed synchronously by both said controller units; and depending on the signal processing or the status of the controller units, output signals are to be produced solely by one of the controller units.
a first controller drawer containing a first electronic controller unit disposed in one of said drawer chambers;
a first power-pack drawer containing a first power pack disposed in a second of said drawer chambers;
connection lines and connection contacts, the connection lines connecting the controller unit and the power pack to each other and to the connection contacts for external connections;
further drawer chambers which are open towards the front of the device housing;
a second controller drawer located in one of said further drawer chambers and having a second electronic controller unit identical to the first controller unit;
a second power-pack drawer located in a second of said further drawer chambers and having a second power pack which is identical to the first power pack, the second controller unit and the second power pack being connected by said connection lines both to each other and to the connection contacts for external connections; and wherein the first controller unit is supplied with energy by the first power pack and the second controller unit is supplied with energy by the second power pack;
input signals are to be fed to both controller units simultaneously in parallel from a location outside the housing via the connection lines to be processed synchronously by both said controller units; and depending on the signal processing or the status of the controller units, output signals are to be produced solely by one of the controller units.
2. A device according to claim 1, further comprising a connection circuit board located in said housing; and wherein said controller units and said power packs are connected to said connection circuit board; and said connection lines are developed and the connection contacts are arranged on said connection circuit board.
3. A device according to claim 2, wherein the connection circuit board covers a side of the drawer chambers opposite the front side and has mating plug contacts connected with said connection lines; and the device includes plug contacts arranged on a rear of the power-pack drawers or the controller drawers for receiving the connection lines.
4. A device according to claim 2, further comprising a contacting chamber disposed in said housing; and wherein the connection circuit board extends beyond a region of the drawer chambers into a region of the contacting chamber laterally alongside the drawer chambers;
and the connection contacts for external connections are arranged on the connection circuit board within the region of the contacting chamber.
and the connection contacts for external connections are arranged on the connection circuit board within the region of the contacting chamber.
5. A device according to claim 4, wherein the connection contacts are plug contacts.
6. A device according to claim 4, further comprising a closure plate, a front opening of the contacting chamber being closable by the closure plate.
7. A device according to claim 6, further comprising a pivot axis which extends along one side edge of the opening of the contacting chamber; and wherein the closure plate is swingable around said pivot.
8. A device according to claim 4, further comprising a cover of the housing; and wherein a bottom end or the cover of the housing has a cable lead-through opening in the region of the contacting chamber.
9. A device according to claim 4, wherein a side wall of the contacting chamber which faces away from the drawer chambers has a cable lead-through opening.
10. A device according to claim 9, wherein the cable lead-through opening is located in an upper or lower region of the side wall.
11. A device according to claim 1, further comprising front plates for the controller drawers or power-pack drawers; and wherein front openings of the drawer chambers are closable by the front plates.
12. A device according to claim 2, further comprising within the device housing and below the drawer chambers, a fan chamber enclosing a fan unit which draws air in from the outside and directs the air via connection openings to the drawer chambers.
13. A device according to claim 12, further comprising a perforated plate; and wherein the drawer chambers are separated by the perforated plate from the fan chamber.
14. A device according to claim 12, wherein the fan unit is configured as a drawer unit which is insertable into the fan chamber.
15. A device according to claim 12, wherein the fan unit has a plurality of fans arranged along a plane at the fan chamber.
16. A device according to claim 15, further comprising a common carrier plate; and wherein the fans are arranged on the common carrier plate.
17. A device according to claim 16, wherein the carrier plate is configured as a further circuit board suitable for mounting of electronic components; and the further circuit board is contactable with the connection circuit board.
18. A device according to claim 16, further comprising drawer guides of the fan chamber for receipt of the carrier plate.
19. A device according to claim 12, further comprising a filter unit disposed within the fan chamber, and wherein, via the filter unit, outside air is drawn in upon activation of the fan unit.
20. A device according to claim 19, wherein the filter unit has a rigid carrier which has air-permeable filter regions.
21. A device according to claim 20, further comprising guides for introduction of the carrier into the fan chamber.
22. A device according to claim 12, further comprising a cover for closing a front opening of the fan chamber.
23. A device according to claim 12, further comprising a perforated plate; and wherein a bottom of the fan chamber is formed by the perforated plate.
24. A device according to claim 1, wherein the housing has a cover which comprises a perforated plate and is located in the region of the drawer chambers.
25. A device according to claim 1, further comprising a first computer board which is located within the controller drawer and which bears a central computer unit, the first computer board having plug-contact means for receiving further conductor boards in an electrically conductive manner.
26. A device according to claim 25, further comprising a second computer board located within the controller drawer and bearing a central computer unit; and
27 wherein the second computer board has plug-contact means for receiving additional circuit boards in electrically conductive manner.
27. A device according to claim 25, wherein the controller drawer has drawer guides for receiving either of the computer boards.
27. A device according to claim 25, wherein the controller drawer has drawer guides for receiving either of the computer boards.
28. A device according to claim 26, further comprising a cable for conductively connecting the first computer board with the second computer board.
29. A device according to claim 28, wherein the cable is a ribbon cable.
30. A device according to claim 26, wherein the first computer board and the second computer board are arranged spaced apart from each other and approximately parallel to each other within the controller drawer; and circuit boards of the first computer board and the second computer board are arranged approximately at a right angle away from each other.
31. A device according to claim 1, wherein the controller drawer has a bottom region and a cover region, the controller drawer being open in its bottom region and in its cover region.
32. A device according to claim 1, wherein each of said controller units comprises a self-test circuit which produces an error signal or a "good"
signal, depending on a status of the controller unit.
signal, depending on a status of the controller unit.
33. A device according to claim 32, wherein an output of one of said controller units is blocked by an error signal of a second one of said controller units.
34. A device according to claim 32, wherein an activation of an output of one of said controller units is produced in response to an error signal in a second of said controller units.
35. A device according to claim 1, wherein transfer of control of an external process between the first controller and the second controller is accomplished without introduction of an interrupt to either of said controller.
36. A device according to claim 35, wherein each of said controllers has control and activation means capable of recognizing operational status of both the first controller and the second controller during their concurrent operation.
37. A device according to claim 36, wherein priority of outputting of control signals to the external process depends on the operational status of each of said controllers, the priority allowing one of said controllers to continue operation upon a failure of the other of said controllers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3933320A DE3933320A1 (en) | 1989-10-06 | 1989-10-06 | DEVICE FOR DETECTING AND PROCESSING ELECTRICAL SIGNALS |
| DEP3933320.5 | 1989-10-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2027056A1 CA2027056A1 (en) | 1991-04-07 |
| CA2027056C true CA2027056C (en) | 1996-09-24 |
Family
ID=6390907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002027056A Expired - Fee Related CA2027056C (en) | 1989-10-06 | 1990-10-05 | Device for detecting and processing electric signals |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0421095B1 (en) |
| JP (1) | JPH03205899A (en) |
| AT (1) | ATE122200T1 (en) |
| CA (1) | CA2027056C (en) |
| DE (2) | DE3933320A1 (en) |
| ES (1) | ES2071715T3 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19513318C1 (en) * | 1995-04-03 | 1996-05-23 | Mannesmann Ag | Operation of asynchronous redundant serial bus for duplex transmission |
| DE19719507A1 (en) * | 1997-05-09 | 1998-11-12 | Alsthom Cge Alcatel | Rack with subrack and ventilation device |
| JPH11283714A (en) * | 1998-03-30 | 1999-10-15 | Fanuc Ltd | Numerical controller |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD204526A1 (en) * | 1982-03-12 | 1983-11-30 | Dietrich Richter | CIRCUIT ARRANGEMENT FOR FAULTLESS MONITORING OF A MEMORY PROGRAMMABLE PRESS SECURITY CONTROL |
| FR2561410B1 (en) * | 1984-03-13 | 1987-11-20 | Merlin Gerin | PROCESS CONTROL ASSOCIATED WITH TWO REDUNDANT PROGRAMMABLE CONTROLLERS |
| JPS6118003A (en) * | 1984-07-04 | 1986-01-25 | Hitachi Ltd | Controller |
| DE3902849A1 (en) * | 1989-02-01 | 1990-08-02 | Vdo Schindling | Circuit arrangement for exchange of data between two microcomputers |
-
1989
- 1989-10-06 DE DE3933320A patent/DE3933320A1/en not_active Withdrawn
-
1990
- 1990-08-13 AT AT90115491T patent/ATE122200T1/en not_active IP Right Cessation
- 1990-08-13 DE DE59009008T patent/DE59009008D1/en not_active Expired - Fee Related
- 1990-08-13 ES ES90115491T patent/ES2071715T3/en not_active Expired - Lifetime
- 1990-08-13 EP EP90115491A patent/EP0421095B1/en not_active Expired - Lifetime
- 1990-10-05 JP JP2266582A patent/JPH03205899A/en active Pending
- 1990-10-05 CA CA002027056A patent/CA2027056C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE59009008D1 (en) | 1995-06-08 |
| JPH03205899A (en) | 1991-09-09 |
| EP0421095A2 (en) | 1991-04-10 |
| EP0421095B1 (en) | 1995-05-03 |
| ES2071715T3 (en) | 1995-07-01 |
| EP0421095A3 (en) | 1992-05-27 |
| DE3933320A1 (en) | 1991-04-11 |
| ATE122200T1 (en) | 1995-05-15 |
| CA2027056A1 (en) | 1991-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6421215B1 (en) | Power overload protection for a system unit | |
| US6750562B2 (en) | Fan control module for a system unit | |
| US4935845A (en) | Electronic circuit module with improved cooling | |
| EP0247522B1 (en) | Electronic equipment housing | |
| US4912401A (en) | Connection apparatus for interactively accessing an electronic device in a pin grid array socket | |
| CN100573772C (en) | Switching device module | |
| JP3934338B2 (en) | Power electricity enclosure | |
| JPH10511194A (en) | Front-loading computer / bus extender | |
| CA2027056C (en) | Device for detecting and processing electric signals | |
| US5224020A (en) | Electronic apparatus having modular front and back functional units and electrical distribution unit including a fan therebetween | |
| US5097386A (en) | Electronic apparatus mounting | |
| CA2176491A1 (en) | Junction panel for control unit | |
| US4985803A (en) | Housing for a multi-board electronic module for a programmable controller system | |
| US6778409B2 (en) | Component access | |
| US6452794B1 (en) | Grounding computer systems | |
| EP0133379B1 (en) | Termination frame assembly with protection from emi for field wiring and rack for same | |
| JP4007527B2 (en) | Game machine | |
| US6539486B1 (en) | Processing and alarm circuitries each having different power supply unit(s) requirement and powering the respective device when the corresponding requirements is met | |
| US5986210A (en) | Multi-channel housing | |
| US20080080132A1 (en) | Electronic apparatus and cooling method thereof | |
| US4493524A (en) | Factory data collection terminal conduit enclosure | |
| US5132628A (en) | Error detecting device for electronic equipment | |
| CA1180126A (en) | Remote terminal address and baud rate selection | |
| CN220368900U (en) | Data acquisition device | |
| JP2914935B2 (en) | Electronic equipment cooling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |