CN106125589B - A kind of thermal power plant's input end of analog signal daughter board and method - Google Patents
A kind of thermal power plant's input end of analog signal daughter board and method Download PDFInfo
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- CN106125589B CN106125589B CN201610410822.6A CN201610410822A CN106125589B CN 106125589 B CN106125589 B CN 106125589B CN 201610410822 A CN201610410822 A CN 201610410822A CN 106125589 B CN106125589 B CN 106125589B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25341—Single chip programmable controller
Abstract
A kind of thermal power plant's input end of analog signal daughter board and method, the terminal board include input power circuit, 16 tunnel input channels being connected with input power circuit, the external equipment input wires terminal and output wiring terminal being connected with 16 tunnel input channels；16 tunnel input channels include the 1st tunnel input channel, and so on, the 16th tunnel input channel；Input power circuit by the 1st tunnel input channel of power cord P+ connections ... and the 16th tunnel input channel；External equipment input wires terminal connects the 1st tunnel input channel by the positive and negative input signal cable in the 1st tunnel, and so on, the positive and negative input signal cable in the 16th tunnel connects the 16th tunnel input channel；Output wiring terminal connects the 1st tunnel input channel by the positive and negative output signal line in the 1st tunnel, and so on, the positive and negative output signal line in the 16th tunnel connects the 16th tunnel input channel；The invention also discloses thermal power plant's analog signal input method；The terminal board structure is simple, easily multiplexing, and using 16 tunnel input channels, each input channel is separate, safe.
Description
Technical field
The present invention relates to power plant's control technology field, and in particular to a kind of thermal power plant's input end of analog signal daughter board and side
Method.
Background technology
Traditional Distributed Control System input end of analog signal daughter board is of high cost, and type is more, and circuit is complicated, and passage is few, every
It is poor from property, it is fragile.On this basis, a kind of thermal power plant's input end of analog signal daughter board and method are proposed.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of thermal power plant's input end of analog signal daughter board and method, the end
Daughter board is simple in structure, easily multiplexing, and using 16 tunnel input channels, each input channel is separate, safe.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of thermal power plant's input end of analog signal daughter board, including input power circuit E, are connected with input power circuit E
16 tunnel input channels, external equipment the input wires terminal X1 and output wiring terminal X2 being connected with 16 tunnel input channels；It is described
16 tunnel input channels include the 1st tunnel input channel CA1, the 2nd tunnel input channel CA2, and so on, the 16th tunnel input channel
CA16；The input power circuit E by the 1st tunnel input channel CA1 of power cord P+ connections, the 2nd tunnel input channel CA2 ... and
16th tunnel input channel CA16；The external equipment input wires terminal X1 passes through the 1st road positive input signal line IN0+ and the 1st tunnel
Negative input signal wire IN0- connections the 1st tunnel input channel CA1, the 2nd road positive input signal line IN1+ and the 2nd tunnel negative input signal wire
The 2nd tunnel input channel CA2 of IN1- connections, and so on, the 16th road positive input signal line IN15+ and the 16th tunnel negative input signal wire
The 16th tunnel input channel CA16 of IN15- connections；The output wiring terminal X2 passes through the 1st road positive output signal line CH0+ and the 1st
Road negative output signal line CH0- connections the 1st tunnel input channel CA1, the 2nd road positive output signal line CH1+ and the 2nd road negative output signal
The 2nd tunnel input channel CA2 of line CH1- connections, and so on, the 16th road positive output signal line CH15+ and the 16th road negative output signal
The 16th tunnel input channel CA16 of line CH15- connections.
The input power circuit E includes the first resettable fuse F1, the first Transient Suppression Diode V1 and high pressure porcelain
Chip capacitor C1 ,+24V power cord connect the line that enters of the first resettable fuse F1, the outlet connection of the first resettable fuse F1
First Transient Suppression Diode V1's enters line, and the outlet of the first Transient Suppression Diode V1 is connected to power cord -24V, and first certainly
The outlet for recovering fuse F1 connects power cord P+ at the same time, and the first Transient Suppression Diode V1 outlets connect high pressure tile electricity at the same time
Hold C1 and enter line, high pressure ceramic disc capacitor C1 outlets connection GRND.
1st tunnel input channel CA1 of 16 tunnel input channel, the 2nd tunnel input channel CA2 ... and the input of the 16th tunnel is logical
The circuit structure of road CA16 is identical with composition；The 1st tunnel input channel CA1 includes rectifier diode V2, second from extensive
8 channel patching device P1, the second Transient Suppression Diode V3 and the resistance R1 of double insurance silk F2, model PD；Input power circuit E's
Power cord P+ is connected in series rectifier diode V2 and enters line, and rectifier diode V2 outlets connect the second resettable fuse F2 and enter line,
Second resettable fuse F2 outlets connect power signal line POW0+, the 1 pin connection electricity of the 8 channel patching device P1 of model PD
Source signal line POW0+, 2 pins and 6 pins connection the 1st road negative output signal line CH0- of signal wire, 3 pins, 4 pins and 5 pins
The 1st road positive output signal line CH0+ of signal wire is connected, 16 pins and 12 pins connection signal wire connect the 1st road positive input signal line
IN0+, 15 pins connect 24V- power cords, 14 pins and 11 pins connection the 1st tunnel negative input signal wire IN0- of signal wire, 13 pins
Current signal line CY0 is connected, 7 pins, 8 pins, 9 pins and 10 pins are hanging；Current signal line CY0 connecting resistances R1 enters line, electricity
Resistance R1 outlets meet the second Transient Suppression Diode V3 and enter line, and the second Transient Suppression Diode V3 outlets connect the 1st road positive output signal
Line CH0+, resistance R1 outlets connect the 1st road negative output signal line CH0- at the same time.
The external equipment input wires terminal X1 has 40 binding posts, is divided into 20 groups, and every group includes two binding posts,
20 binding posts fall down to be respectively designated as the 1st binding post A1 of left side to left side the from above on the left of external equipment input wires terminal X1
20 binding post A20,20, right side binding post are named as the 1st binding post B1 of right side to the 20th binding post of right side successively from top to bottom
B20, wherein left side connects input signal cable cathode, right side connects input signal cable anode, and the 1st binding post A1 of left side and right side the 1st connect
Terminal B1 connects the 1st road positive input signal line IN0+ and the 1st tunnel negative input signal wire IN0-, the 2nd binding post A2 of left side and the right side respectively
The 2nd binding post B2 of side meets the 2nd road positive input signal line IN1+ and the 2nd tunnel negative input signal wire IN1- respectively, and so on, left side
16th binding post A16 and the 16th binding post B16 of right side meets the 16th road positive input signal line IN15+ and the 16th tunnel positive input letter respectively
Number line IN15-, power cord 24V+ meet the 20th binding post A20 of left side, and power cord 24V- connects the 20th binding post B20 of right side, ground wire
GRND connects the 19th binding post B19 of right side, the 17th binding post A17 of left side, the 18th binding post A18 of left side, the 19th binding post of left side
A19, the 17th binding post B17 of right side, the 18th binding post B18 of right side are hanging.
The output wiring terminal X2 is 37 pin D type sockets, and the lead-out wire of socket is according to first right side i.e. wide opening, then left side
Slot is named, and right side is respectively designated as 1 to No. 19 lines of Line 1 19 from top to bottom, and left side is respectively designated as 20 from top to bottom
Number 20 to No. 37 lines of line 37, wherein Line 11 meet the 1st road positive output signal line CH0+, and No. 2 lines 2 connect the 2nd road positive output signal line
CH1+, and so on, No. 16 lines 16 meet the 16th road positive output signal line CH15+, and No. 20 lines 20 connect the 1st road negative output signal line
CH0-, No. 21 lines 21 meet the 2nd road negative output signal line CH1-, and so on, No. 35 lines 35 connect the 16th road negative output signal line
CH15-, No. 19 lines 19 are grounded GRND, and No. 17 lines 36 of line 18,36 of line 17,18 and No. 37 lines 37 are hanging.
The method of thermal power plant's input end of analog signal daughter board analog signal input described above ,+24V external power supply incoming ends
After daughter board, the first Transient Suppression Diode V1 can prevent big voltage from burning out circuit, when electricity of the external power supply access more than+24V
During pressure, the first Transient Suppression Diode V1 makes two-stage high impedance be changed into Low ESR in snap action, ensure circuit below from
Influence, the first resettable fuse F1 can prevent circuit burnout；After external power supply is connected, electric current insures by the first self- recoverage
8 passages that silk F1, rectifier diode V2, the second resettable fuse F2 access 8 channel patching the device P1, model PD of model PD are jumped
Line device P1 carries out the input of input analog signal according to the working method of selection；
It is different according to the working method of the 8 channel patching device P1 of model PD, there are three kinds per road analog signal input channel
Working method, is respectively 4-20mA distribution, 4-20mA not distribution, that is, current system and 0-5V not distribution, that is, voltage systems；Model PD
7 pins of 8 channel patching device P1,8 pins, 9 pins and 10 pins it is hanging；Three kinds of working methods are respectively：
1st, 4-20mA distribution, the pin 1 of the 8 channel patching device P1 of model PD are connected with pin 16, and pin 2 and pin 15 connect
Logical, pin 3 is connected with pin 14, and pin 4 is connected with pin 13, and pin 5 and pin 12 disconnect, and pin 6 and pin 11 disconnect, and draw
Foot 7 and pin 10 disconnect, and pin 8 and pin 9 disconnect；
2nd, distribution, that is, current system, the pin 1 and pin 16 of the 8 channel patching device P1 of model PD are not disconnected, drawn 4-20mA
Foot 2 and pin 15 disconnect, and pin 3 and pin 14 disconnect, and pin 4 is connected with pin 13, and pin 5 is connected with pin 12,6 He of pin
Pin 11 connects, and pin 7 and pin 10 disconnect, and pin 8 and pin 9 disconnect；
3rd, 0-5V not distribution, that is, voltage systems, the pin 1 and pin 16 of the 8 channel patching device P1 of model PD disconnect, pin 2
Disconnected with pin 15, pin 3 and pin 14 disconnect, and pin 4 and pin 13 disconnect, and pin 5 is connected with pin 12, pin 6 and draw
Foot 11 connects, and pin 7 and pin 10 disconnect, and pin 8 and pin 9 disconnect.
Compared to the prior art the present invention, has the following advantages that：
1st, due to having carried out isolation design, thermal power plant's analog signal input to the output signal of analog input signal and passage
Terminal board has good isolation, isolates the forceful electric power signal sealed in, will not damage the other modules of control system.
2nd, each input channel is separate, if a-road-through road goes wrong, other road normal operations, are independent of each other.
3rd, due to having carried out isolation design, thermal power plant's analog signal input to the output signal of analog input signal and passage
Terminal board anti-interference is high, being capable of the stable operation in complicated electromagnetic environment.
4th, thermal power plant's input end of analog signal daughter board versatility is high, and the various analog signal inputting modular units of control system can
Using.
5th, thermal power plant's input end of analog signal daughter board circuit structure is simple, and cost is low, is easy to mass produce and applies.
Brief description of the drawings
Fig. 1 is thermal power plant's input end of analog signal daughter board structure chart.
Fig. 2 is input power circuit.
Fig. 3 is the circuit diagram of input channel.
Fig. 4 is input terminal subgraph.
Fig. 5 is outlet terminal subgraph.
Fig. 6 is P1 configuration schematic diagrams and working method.
Embodiment
Below in conjunction with attached drawing, the present invention is described in further detail.
As shown in Figure 1, a kind of thermal power plant's input end of analog signal daughter board of the present invention, including input power circuit E, with input
16 tunnel input channels of power circuit E connections, the external equipment input wires terminal X1 being connected with 16 tunnel input channels and output
Wire connection terminal X2；16 tunnel input channel includes the 1st tunnel input channel CA1, the 2nd tunnel input channel CA2, and so on, the
16 tunnel input channel CA16；The input power circuit E is inputted by the 1st tunnel input channel CA1 of power cord P+ connections, the 2nd tunnel
Channel C A2 ... and the 16th tunnel input channel CA16；The external equipment input wires terminal X1 passes through the 1st road positive input signal
Line IN0+ and the 1st tunnel negative input signal wire IN0- connections the 1st tunnel input channel CA1, the 2nd road positive input signal line IN1+ and the 2nd
The 2nd tunnel input channel CA2 of road negative input signal wire IN1- connections, and so on, the 16th road positive input signal line IN15+ and the 16th
The 16th tunnel input channel CA16 of road negative input signal wire IN15- connections；The output wiring terminal X2 is believed by the 1st tunnel positive output
Number line CH0+ and the 1st road negative output signal line CH0- connections the 1st tunnel input channel CA1, the 2nd road positive output signal line CH1+ and
The 2nd tunnel input channel CA2 of 2 road negative output signal line CH1- connections, and so on, the 16th road positive output signal line CH15+ and
The 16th tunnel input channel CA16 of 16 road negative output signal line CH15- connections.
As shown in Fig. 2, the input power circuit E includes the first resettable fuse F1, the first Transient Suppression Diode
The first resettable fuse F1's of V1 and the connection of high pressure ceramic disc capacitor C1 ,+24V power cord enters line, the first resettable fuse F1
Outlet connect the first Transient Suppression Diode V1 enter line, the outlet of the first Transient Suppression Diode V1 be connected to power cord-
The outlet of 24V, the first resettable fuse F1 connect power cord P+ at the same time, and the first Transient Suppression Diode V1 outlets connect at the same time
High pressure ceramic disc capacitor C1 enters line, high pressure ceramic disc capacitor C1 outlets connection GRND.
1st tunnel input channel CA1 of 16 tunnel input channel, the 2nd tunnel input channel CA2 ... and the input of the 16th tunnel is logical
The circuit structure of road CA16 is identical with composition；As shown in figure 3, the 1st tunnel input channel CA1 includes rectifier diode
V2, the second resettable fuse F2,8 channel patching device P1, the second Transient Suppression Diode V3 and the resistance R1 of model PD；Input
The power cord P+ of power circuit E is connected in series rectifier diode V2 and enters line, and rectifier diode V2 outlets connect the second self- recoverage and protect
Dangerous silk F2 enters line, the second resettable fuse F2 outlets connection power signal line POW0+, and the 1 of the 8 channel patching device P1 of model PD
Pin connects power signal line POW0+, 2 pins and 6 pins connection the 1st road negative output signal line CH0- of signal wire, and 3 pins, 4 are drawn
It is just defeated that foot and 5 pins connection the 1st road positive output signal line CH0+ of signal wire, 16 pins and 12 pins connection signal wire connect the 1st tunnel
Enter signal wire IN0+, 15 pins connect 24V- power cords, 14 pins and 11 pins connection the 1st tunnel negative input signal wire of signal wire
IN0-, 13 pins connection current signal line CY0,7 pins, 8 pins, 9 pins and 10 pins are hanging；Current signal line CY0 connects electricity
Resistance R1 enters line, and resistance R1 outlets meet the second Transient Suppression Diode V3 and enter line, and the second Transient Suppression Diode V3 outlets connect the 1st tunnel
Positive output signal line CH0+, resistance R1 outlets connect the 1st road negative output signal line CH0- at the same time.
As shown in figure 4, the external equipment input wires terminal X1 has 40 binding posts, it is divided into 20 groups, every group includes
Two binding posts, 20 binding posts in external equipment input wires terminal X1 left sides fall down to be respectively designated as the 1st wiring of left side from above
Column A1 to the 20th binding post A20 of left side, 20, right side binding post are named as the 1st binding post B1 of right side to right side successively from top to bottom
20th binding post B20, wherein left side connects input signal cable cathode, right side connects input signal cable anode, the 1st binding post A1 of left side and
The 1st binding post B1 of right side connects the 1st road positive input signal line IN0+ and the 1st tunnel negative input signal wire IN0-, the 2nd wiring of left side respectively
Column A2 and the 2nd binding post B2 of right side meet the 2nd road positive input signal line IN1+ and the 2nd tunnel negative input signal wire IN1- respectively, successively
Analogize, left side the 16th binding post A16 and the 16th binding post B16 of right side meet the 16th road positive input signal line IN15+ and the 16th respectively
Road positive input signal line IN15-, power cord 24V+ meet the 20th binding post A20 of left side, and power cord 24V- connects the 20th binding post of right side
B20, ground wire GRND connect the 19th binding post B19 of right side, the 17th binding post A17 of left side, the 18th binding post A18 of left side, left side the 19th
Binding post A19, the 17th binding post B17 of right side, the 18th binding post B18 of right side are hanging.
As shown in figure 5, the output wiring terminal X2 is 37 pin D type sockets, the lead-out wire of socket is according to first right side i.e. width
Mouthful, then left side is that slot is named, right side is respectively designated as 1 to No. 19 lines of Line 1 19 from top to bottom, and left side is divided from top to bottom
20 to No. 37 lines of No. 20 lines 37 are not named as, and wherein Line 11 meets the 1st road positive output signal line CH0+, and No. 2 lines 2 are connecing the 2nd tunnel just
Output signal line CH1+, and so on, No. 16 lines 16 meet the 16th road positive output signal line CH15+, No. 20 lines 20 connect the 1st tunnel bear it is defeated
Going out signal wire CH0-, No. 21 lines 21 meet the 2nd road negative output signal line CH1-, and so on, No. 35 lines 35 connect the 16th tunnel negative output
Signal wire CH15-, No. 19 lines 19 are grounded GRND, and No. 17 lines 36 of line 18,36 of line 17,18 and No. 37 lines 37 are hanging.
The method of thermal power plant's input end of analog signal daughter board analog signal input of the present invention, the access of+24V external power supplies
After terminal board, the first Transient Suppression Diode V1 can prevent big voltage from burning out circuit, when external power supply access is more than+24V's
During voltage, the first Transient Suppression Diode V1 makes two-stage high impedance be changed into Low ESR in snap action, ensures circuit below not
Impacted, the first resettable fuse F1 can prevent circuit burnout；After external power supply is connected, electric current is protected by the first self- recoverage
Dangerous silk F1, rectifier diode V2, the second resettable fuse F2 access 8 passages of 8 channel patching the device P1, model PD of model PD
Jumper wire device P1 carries out the input of input analog signal according to the working method of selection；
It is different according to the working method of the 8 channel patching device P1 of model PD, there are three kinds per road analog signal input channel
Working method, is respectively 4-20mA distribution, 4-20mA not distribution, that is, current system and 0-5V not distribution, that is, voltage systems；Such as Fig. 6
It is shown, schematic diagram is done for the 8 channel patching device P1 configurations of model PD and work, the 7 of the 8 channel patching device P1 of model PD draw
Foot, 8 pins, 9 pins and 10 pins are hanging；The place of cross represents to disconnect, and three kinds of working methods are respectively：
1st, 4-20mA distribution, the pin 1 of the 8 channel patching device P1 of model PD are connected with pin 16, and pin 2 and pin 15 connect
Logical, pin 3 is connected with pin 14, and pin Pin 4 is connected with pin 13, and pin 5 and pin 12 disconnect, and pin 6 and pin 11 are disconnected
Open, pin 7 and pin 10 disconnect, and pin 8 and pin 9 disconnect；
2nd, distribution, that is, current system, the pin 1 and pin 16 of the 8 channel patching device P1 of model PD are not disconnected, drawn 4-20mA
Foot 2 and pin 15 disconnect, and pin 3 and pin 14 disconnect, and pin 4 is connected with pin 13, and pin 5 is connected with pin 12,6 He of pin
Pin 11 connects, and pin 7 and pin 10 disconnect, and pin 8 and pin 9 disconnect；
3rd, 0-5V not distribution, that is, voltage systems, the pin 1 and pin 16 of the 8 channel patching device P1 of model PD disconnect, pin 2
Disconnected with pin 15, pin 3 and pin 14 disconnect, and pin 4 and pin 13 disconnect, and pin 5 is connected with pin 12, pin 6 and draw
Foot 11 connects, and pin 7 and pin 10 disconnect, and pin 8 and pin 9 disconnect.
Such as attached drawing 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Fig. 6, as the preferred embodiment of the present invention, the first self- recoverage is protected
Dangerous silk F1 uses model RXE110E17, the second resettable fuse F2 use model RXE010, the first Transient Suppression Diode
V1 uses model SA24CA, rectifier diode V2 to use model using model IN4007, the second Transient Suppression Diode V3
SA85CA, high pressure ceramic disc capacitor C1 use 103/2000V, jumper wire device P1 to use 8 channel patching device PD, external equipment input wires
Terminal X1 uses the wire connection terminal of TERM40 models, has 20 groups, 40 binding posts, wherein every group of two binding posts, connect respectively
The cathode and anode of input signal, output wiring terminal X2 use 37 pin terminal DB37 types.
Claims (4)
- A kind of 1. thermal power plant's input end of analog signal daughter board, it is characterised in that：Including input power circuit (E), with input power 16 tunnel input channels of circuit (E) connection, the external equipment input wires terminal (X1) being connected with 16 tunnel input channels and output Wire connection terminal (X2)；16 tunnel input channel includes the 1st tunnel input channel (CA1), the 2nd tunnel input channel (CA2), successively class Push away, the 16th tunnel input channel (CA16)；The input power circuit (E) passes through the 1st tunnel input channel of power cord P+ connections (CA1), the 2nd tunnel input channel (CA2) ... and the 16th tunnel input channel (CA16)；The external equipment input wires terminal (X1) the 1st tunnel input channel is connected by the 1st road positive input signal line (IN0+) and the 1st tunnel negative input signal wire (IN0-) (CA1), the 2nd road positive input signal line (IN1+) and the 2nd tunnel negative input signal wire (IN1-) connect the 2nd tunnel input channel (CA2), And so on, the 16th road positive input signal line (IN15+) and the 16th tunnel negative input signal wire (IN15-) connect the input of the 16th tunnel and lead to Road (CA16)；The output wiring terminal (X2) passes through the 1st road positive output signal line (CH0+) and the 1st road negative output signal line (CH0-) the 1st tunnel input channel (CA1), the 2nd road positive output signal line (CH1+) and the 2nd road negative output signal line (CH1-) are connected The 2nd tunnel input channel (CA2) is connected, and so on, the 16th road positive output signal line (CH15+) and the 16th road negative output signal line (CH15-) the 16th tunnel input channel (CA16) is connected；The input power circuit (E) includes the first resettable fuse (F1), the first Transient Suppression Diode (V1) and high pressure Ceramic disc capacitor (C1) ,+24V power cords the first resettable fuse of connection (F1) enter line, the first resettable fuse (F1) Outlet the first Transient Suppression Diode of connection (V1) enters line, and the outlet of the first Transient Suppression Diode (V1) is connected to power supply Line -24V, the outlet of the first resettable fuse (F1) connect power cord (P+) at the same time, and the first Transient Suppression Diode (V1) goes out Line connects high pressure ceramic disc capacitor (C1) and enters line, high pressure ceramic disc capacitor (C1) outlet connection GRND at the same time；1st tunnel input channel (CA1) of 16 tunnel input channel, the 2nd tunnel input channel (CA2) ... and the input of the 16th tunnel is logical The circuit structure in road (CA16) is identical with composition；The 1st tunnel input channel (CA1) includes rectifier diode (V2), the second resettable fuse (F2), the 8 of model PD logical Road jumper wire device (P1), the second Transient Suppression Diode (V3) and resistance (R1)；Power cord (P+) series connection of input power circuit (E) Connection rectifier diode (V2) enters line, and rectifier diode (V2) outlet connects the second resettable fuse (F2) and enters line, and second certainly Recover fuse (F2) outlet connection power signal line (POW0+), the 1 pin connection electricity of the 8 channel patching devices (P1) of model PD Source signal line (POW0+), 2 pins and 6 pins connection the 1st road negative output signal line (CH0-) of signal wire, 3 pins, 4 pins and 5 Pin connects the 1st road positive output signal line (CH0+) of signal wire, and 16 pins and 12 pins connection signal wire connect the 1st tunnel positive input letter Number line (IN0+), 15 pins connect 24V- power cords, 14 pins and 11 pins connection the 1st tunnel negative input signal wire of signal wire (IN0-), 13 pins connection current signal line (CY0), 7 pins, 8 pins, 9 pins and 10 pins are hanging；Current signal line (CY0) connecting resistance (R1) enters line, and resistance (R1) outlet connects the second Transient Suppression Diode (V3) and enters line, and the second transient state suppresses two poles Pipe (V3) outlet connects the 1st road positive output signal line (CH0+), and resistance (R1) outlet connects the 1st road negative output signal line at the same time (CH0-)。
- A kind of 2. thermal power plant's input end of analog signal daughter board according to claim 1, it is characterised in that：The external equipment Input wires terminal (X1) has 40 binding posts, is divided into 20 groups, and every group includes two binding posts, external equipment input terminal 20 binding posts fall down to be respectively designated as the 1st binding post (A1) of left side to the 20th binding post (A20) of left side from above on the left of sub (X1), 20, right side binding post is named as the 1st binding post (B1) of right side to the 20th binding post (B20) of right side successively from top to bottom, wherein left Side joint input signal cable cathode, right side connect input signal cable anode, the 1st binding post (A1) of left side and the 1st binding post (B1) of right side The 1st road positive input signal line (IN0+) and the 1st tunnel negative input signal wire (IN0-), the 2nd binding post (A2) of left side and the right side are connect respectively The 2nd binding post (B2) of side connects the 2nd road positive input signal line (IN1+) and the 2nd tunnel negative input signal wire (IN1-) respectively, successively class Push away, the 16th binding post (A16) of left side and the 16th binding post (B16) of right side connect respectively the 16th road positive input signal line (IN15+) and 16th road positive input signal line (IN15-), power cord 24V+ connect the 20th binding post (A20) of left side, and power cord 24V- connects right side the 20 binding posts (B20), ground wire GRND connect the 19th binding post (B19) of right side, the 17th binding post (A17) of left side, the 18th wiring of left side Column (A18), the 19th binding post (A19) of left side, the 17th binding post (B17) of right side, the 18th binding post (B18) of right side are hanging.
- A kind of 3. thermal power plant's input end of analog signal daughter board according to claim 1, it is characterised in that：The output connection Terminal (X2) is 37 pin D type sockets, and the lead-out wire of socket is according to first right side i.e. wide opening, then left side is that slot is named, right side Line 1 (1) is respectively designated as from top to bottom is respectively designated as No. 20 lines (20) from top to bottom to No. 37 to No. 19 lines (19), left side Line (37), wherein Line 1 (1) connect the 1st road positive output signal line (CH0+), and No. 2 lines (2) meet the 2nd road positive output signal line (CH1 +), and so on, No. 16 lines (16) connect the 16th road positive output signal line (CH15+), and No. 20 lines (20) connect the 1st road negative output signal Line (CH0-), No. 21 lines (21) connect the 2nd road negative output signal line (CH1-), and so on, No. 35 lines (35) connect the 16th tunnel bear it is defeated Go out signal wire (CH15-), No. 19 lines (19) are grounded GRND, No. 17 lines (17), No. 18 lines (18), No. 36 lines (36) and No. 37 lines (37) it is hanging.
- 4. the analog signal input method of thermal power plant's input end of analog signal daughter board described in claim 1, it is characterised in that：+24V After external power supply access terminal board, the first Transient Suppression Diode (V1) can prevent big voltage from burning out circuit, work as external power supply When access is more than the voltage of+24V, the first Transient Suppression Diode (V1) makes two-stage high impedance be changed into Low ESR in snap action, Ensure that circuit below is unaffected, the first resettable fuse (F1) can prevent circuit burnout；After external power supply is connected, electricity Stream by the first resettable fuse (F1), rectifier diode (V2), the second resettable fuse (F2) access model PD it is 8 logical Road jumper wire device (P1), the 8 channel patching devices (P1) of model PD carry out the input of input analog signal according to the working method of selection；It is different according to the working method of the 8 channel patching devices (P1) of model PD, there are three kinds of works per road analog signal input channel Make mode, be respectively 4-20mA distribution, 4-20mA not distribution, that is, current system and 0-5V not distribution, that is, voltage systems；Model PD's 7 pins of 8 channel patching devices (P1), 8 pins, 9 pins and 10 pins are hanging；Three kinds of working methods are respectively：(1), 4-20mA distribution, the pin 1 of the 8 channel patching devices (P1) of model PD are connected with pin 16, and pin 2 and pin 15 connect Logical, pin 3 is connected with pin 14, and pin 4 is connected with pin 13, and pin 5 and pin 12 disconnect, and pin 6 and pin 11 disconnect, and draw Foot 7 and pin 10 disconnect, and pin 8 and pin 9 disconnect；(2), distribution, that is, current system, the pin 1 and pin 16 of the 8 channel patching devices (P1) of model PD are not disconnected, drawn 4-20mA Foot 2 and pin 15 disconnect, and pin 3 and pin 14 disconnect, and pin 4 is connected with pin 13, and pin 5 is connected with pin 12,6 He of pin Pin 11 connects, and pin 7 and pin 10 disconnect, and pin 8 and pin 9 disconnect；(3), 0-5V not distribution, that is, voltage systems, the pin 1 and pin 16 of the 8 channel patching devices (P1) of model PD disconnect, pin 2 Disconnected with pin 15, pin 3 and pin 14 disconnect, and pin 4 and pin 13 disconnect, and pin 5 is connected with pin 12, pin 6 and draw Foot 11 connects, and pin 7 and pin 10 disconnect, and pin 8 and pin 9 disconnect.
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Citations (4)
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|---|---|---|---|---|
| WO2006016830A1 (en) * | 2004-07-08 | 2006-02-16 | Tatarchenko Nikolay Valentinov | Address micromodule (variants) |
| CN104852716A (en) * | 2015-05-20 | 2015-08-19 | 西安西热控制技术有限公司 | Thermal power plant digital input terminal board and method |
| CN104852726A (en) * | 2015-05-20 | 2015-08-19 | 西安西热控制技术有限公司 | Intelligent self-diagnosis digital input terminal board and method |
| CN205691991U (en) * | 2016-06-13 | 2016-11-16 | 西安西热控制技术有限公司 | A kind of thermal power plant input end of analog signal daughter board |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6856719B2 (en) * | 2001-03-12 | 2005-02-15 | Alliance Fiber Optic Products, Inc. | Optical switch system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006016830A1 (en) * | 2004-07-08 | 2006-02-16 | Tatarchenko Nikolay Valentinov | Address micromodule (variants) |
| CN104852716A (en) * | 2015-05-20 | 2015-08-19 | 西安西热控制技术有限公司 | Thermal power plant digital input terminal board and method |
| CN104852726A (en) * | 2015-05-20 | 2015-08-19 | 西安西热控制技术有限公司 | Intelligent self-diagnosis digital input terminal board and method |
| CN205691991U (en) * | 2016-06-13 | 2016-11-16 | 西安西热控制技术有限公司 | A kind of thermal power plant input end of analog signal daughter board |
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