JPS59168503A - Electric equipment control board - Google Patents

Abstract

PURPOSE:To obtain an electric equipment control board containing necessary functions by providing a deciding function to a central arithmetic processor to select various function blocks and at the same time to identify the same control systems for mutual connection. CONSTITUTION:Units 41- are connected to a central arithmetic processor 1 via an external I/O bus 3 for connection of function blocks. The unit 41 incorporates a connector for a card type function block 25 connected to the bus 3 via a built-in arithmetic processor. The addresses are given successively to each connector. At the same time, a unit address is set to each unit 41 through an address setting part 5. Thus the processor 1 identifies the absolute address of each connector of each unit 41. Then the data can be transferred between function blocks connected to specific connectors.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an electrical equipment control panel used in electrical equipment that controls liquid level, such as a water tank.

[Background technology]

Conventionally, this type of electrical equipment control panel combines necessary circuits such as a liquid level control circuit, an abnormality detection circuit, an operation surface water circuit, a relay sequence circuit, etc., and a control circuit in one panel. The wiring was housed in the electrical equipment control panel (]l-, which was configured for each control system. Therefore, because it was separated by control system, it was not possible to respond to the field, and since there were various types, it was manufactured as a single item, and wiring was required. In addition, since this board is a board for one system, the number of boards increases as the number of systems increases, and it takes time and effort to install them.

In view of this point, it may be possible to create blocks in advance, but this is not a sufficient measure because it is necessarily necessary for wiring in the block diagram.

[Purpose of the invention]

The present invention has been made in view of the above points, and its purpose is to provide necessary functions? Since the board can be easily made, it can be handled on-site, and the wiring within the board can be done easily. It provides a control panel for electrical equipment that can be reduced.

[Disclosure of the invention]

FIG. 1 shows an overall schematic diagram of the present invention, in which (1) is a central processing unit;
1) is connected to a unit (41) for connecting functional blocks through an external system (3) consisting of a data bus, an address bus, a control bus, etc. The unit (4□)... has an intelligence type terminal function, and has an external I10 bus (
3) has a built-in connector for connecting a card-type functional block connected via the built-in processing unit, and each connector is given a connector address sequentially from the left end, for example, when viewed from the built-in processing unit. ing. And each unit (41) as seen from the central processing unit (]).
. . is provided with an address setting section (5) for setting the unit address for each unit. Therefore, each unit (4,) .
The absolute address of each connector in the central processing unit (
1), between the central processing unit m and the functional block connected to a specific connector of each unit (41)... via the built-in processing unit of each unit (4,)... It is possible to send and receive data. FIG. 2 shows a conceptual block diagram of the entire system with the built-in arithmetic processing unit of each unit (41) omitted. Function': 50 blocks include (2□) control block, (2□) liquid level control block, (2,) abnormality detection block, (24) sequence input processing block,
(25) has an operation display block, etc., and the operation display block (2,) is a unit for operation display block (25) (
41), and other functional locks are connected to other units (4°)...

Now, the control block (21) has the configuration shown in FIG. 3(a), and includes I), I10 bus interface (6),
an output data control section (7), an input data processing section light,
It is composed of an address setting section (8), a function setting section (9), and a manual/automatic changeover switch (lO).The output data control section (7) outputs a control output of the load and an output indicating the operating status of the load. The input data processing unit (b) receives the operation output of the external operation switch SWI, inputs indicating the operating status of the load, and inputs indicating the failure status of the load. It looks like this. The address setting section (8) is for setting an address unique to the control block (21), and the function setting section (9) is for identifying that the block is a control block (2,). This is only for setting the code number.

As shown in FIG. 8(b), the abnormality detection block (23) includes an input data processing section (b) that takes in abnormality detections of each power supply path such as earth leakage detection, open phase detection, and short circuit detection. The load current value is compared with the reference value set by the variable resistor ■, and if the reference value is exceeded, an overcurrent is detected and an output is generated. 9) and an I10 bus interface (61).

As shown in FIG. 3(c), the liquid level control block (22) includes a liquid level state data processing unit (22) that takes in liquid level detection data from the floatless liquid level detection electrode and creates liquid level state data.
1→, an address setting section (8,..., a function setting section (9), and an I10 bus interface (6). Operation display block C25) n Fig. 8 (d)
), a human power processing unit αυ for processing operation sweep and chip input data, a display output unit uQ for displaying the load operating status, an I10 bus interface (6) and 1, and an address setting unit. (8) and function setting section (9)
and? It is prepared. The central processing unit (1) is the eighth
As shown in Figure (e), there is an arithmetic processing unit (g) consisting of a micro-sized cell, a storage unit such as ROM and RAM, a peripheral I10 oscilloscope α9), and an external I10 bus (3) ff: I10 data generator 4, which is used for two-speed reception of external data lock and data through I10
It is composed of a data input section e→ and a memory section α in which a data input section is stored in advance for sending and receiving data to and from external blocks.
It is stored in the power program area.

Relay sequence input processing block (24) 'is as shown in Figure 3(f), takes in on/off signals of the relay contacts of the external relays in order to check the operating status of each relay in the external relay sequence circuit. , the central processing unit (relay contact status data processing unit for sending data to l), the gI bus interface (6) and 1,
It includes an address setting section (8) and a function setting section (9).

Next, if you are worried about using the electrical equipment control panel of the present invention, select the functional blocks necessary for the electrical equipment, and set the address setting section (8) of these functional blocks to the same address for each control system. be.

As an example, let's consider the case of controlling pump equipment such as a water tank or water supply tank. First, when operating with one pump, the necessary functional block is the control for controlling the pump. Detection signals from the block (21), the liquid level control block (22) that processes the detection data of the electrodes used to detect the liquid level in the aquarium, and the short circuit sensor, open phase sensor, and leakage sensor that detect abnormalities in the power supply. The operation display block (
25) The sequence input processing block (2,) is used to process the relay operation data of the sequence circuit as required. In this case, the operation display block (25) is connected to the unit (4,), and is connected to any connector of the other blocks (2,) to (24), the trs unit (+t), and so on.

FIG. 4 is a conceptual block diagram of one control system when one pump is used. Next, the operation of the electrical equipment control panel of the present invention will be explained along with this block diagram.

When connecting the blocks (21), . . . to the units (4,), etc., the addresses of the respective address setting sections (8) are set as described above for the same control system. Here, the address setting section (8) is appropriately configured using a switch such as a dip switch. Also, each pro-nk (21
)...'s function setting section (9) is also configured using switches such as dip switches, and each function setting section (9)...
), and set code numbers for each function.

When the electrical equipment control panel is started after connecting and mounting the blocks (2□) as required to each unit (41), each unit ( In 4,)..., the built-in arithmetic processing unit sequentially reads the address and functional side vortex data of the block (2,)... which is connected to each connector, and further calculates these addresses and machine assignments. The data is sequentially transferred to each unit (4,) in the central processing unit (t+).
・It is read by calling . Therefore, in the central processing unit (1), the address of the unit (41)... and the lock (2□) in each unit (41)...
The absolute call address of the block (21) is determined based on the connector data of the block (21), and each block (
21) Determine the control system of each block (21)... based on the address set in the address setting section (8) for each, and determine the function based on the setting code number of each function setting section (9), Decide the control data to be given to the block or the processing of input data from the block, and make these judgments.
The decision data is written in the storage section a for each control system, and thereafter the central processing unit +1) and each block (21).
... is performed based on this written data.

Now, when the judgment and determination are completed, the operation of the central control unit (1) shifts to the normal routine, and first, the operation switch for mode setting is selected from the operation display block (25) of the predetermined control system.
It imports SWa data. Operation display block (
As for 25), there is something like the one shown in Figure 8 for Pon':51, in this case, the operation switch S for setting the seventh
With Wa, you can select "manual", "off" and "automatic" modes. For example, when setting "automatic", the central processing unit f1) will select the liquid level detection block (22) of the same control thread.
i is called, data on the liquid level is taken in, and if this data is the data to drive the bond, the ON signal data is transferred to the control block (21) of the same control system.

The control block (2,) which receives this ON signal data generates a control output for driving the pump through the output data control section (7), and starts operation of the pump. At the same time, it generates an operating state output that drives the operating state display means provided in the control block (21). Next, the central processing unit (1) reads the abnormality detection block (2□) of the same control system and the monitoring data of the power supply path, and determines whether there is an abnormality or not. If there is no abnormality, the display data is transferred to the central processing unit +1+14 to the operation display block (25), and the operation display block (25) is equipped with display lamps L1 to L4 corresponding to earth leakage, short circuit, open phase, and overcurrent. The light is set to off. Then, the central processing unit +11 again reads the operation data of the operation switch SWa of the operation display block (25). By the way, when it is determined that there is an abnormality in the above-mentioned abnormality determination, the central processing unit +1+ transfers an OFF signal for stopping the pump and a signal indicating the occurrence of an abnormality to the control block (21). In this case, the control block (21) cuts off the control output, stops driving the pump, generates a fault state output, and lights up the provided fault state display means to indicate that the pump is out of order. Furthermore, the central processing unit (1) has an operation display block (
Transfer the display data to the operation display block (25).
) indicator lamp L1. -L, the appropriate run is lit to indicate the occurrence of an abnormality.

Now, if the operation data of the operation switch SWa is "off", an OFF signal is sent to the control block (21) to stop the operation of the pump. If "manual" operation data is input, the ONi signal is sent to the control block (21) to operate the pump. Furthermore, the control block (2
) is an external operation switch SW.

, SW2 are provided, and if the central processing unit (CPU) breaks down, the manual/automatic changeover switch (10) can be switched to the manual side and the external operation switches SW1 and SW2 can be operated. , "turning off" can be performed without going through the central processing unit (1).In addition, the input data processing unit αυ reads data from the detection means for detecting the operating state of the valve and the fault state, and The signal is sent to the central processing unit (1), and the central processing unit f1+ issues an alarm. SWc in Fig. 8 is an alarm release switch provided in the operation display block (25). It is of course possible to make the signal emitted even when there is an abnormality in the power supply path mentioned above.In the above humorous explanation, the operation of the unit (41) and built-in arithmetic processing unit is omitted, but each central processing unit (1) and each block (21)・
・Data processing in sending and receiving data? I am doing it. However, conceptually, there is no difference between the central processing unit (1) and each block (2,), etc., where all data is sent and received via the external I10 bus (3).
Omitted as mentioned above.

By the way, when operating a pump for a water tank or water tank,
There are cases where two pumps are operated alternately in consideration of the lifespan of the pump, but even in the case of the present invention, two control pumps (2□a) (2□b) are connected to the same control system. This can be achieved by doing this. Next, this control system will be explained (7). FIG. ,a) (2,
Corresponding to b), two abnormality detection blocks (2*al (23b)) set at the same location are connected.

The operation of this control system will be explained using the frame D-set shown in FIG.

First, when you start the electrical equipment control panel, the built-in arithmetic processing unit in the top unit (4□)...
The block (21) is connected to each connector in sequence.
Read the address and function assignment data of
, each unit (41)... is sequentially called and programmed. Therefore, on the central processing unit side (1), the address of the unit (41)... and each unit (41)
The absolute call address of the block (21) is determined based on the connection of the lock (21) in... and the data of the connector, and each・
- Determine the control system of the valley lock (21)... according to the address set in the address setting section (8) for each, and determine the function according to the setting code number of the valley function setting section (9), and The processing of the control data to be given to the mouth/υ or the input data from the said mouth/ν is determined, and these judgment and decision data are stored in the storage unit qη for each control system, and the subsequent central processing is performed. Bag f+H1) and each flock (2□)...
The data transmission and reception between ・ and ・is performed based on this stored data. At this time, two control blocks (21a
) (2tb) are set at the same location, the central processing unit (1) determines that the control system is for self-help alternating operation, and when controlling this control system, it alternately controls the two BoJs. To determine the rhodium to be operated, first, the data of the operation switch SWa for setting the seventh mode is read from the operation display block (25) of a predetermined control system. The operation display lock (25) is as shown in Figure 10 for alternate operation. For example, when set to ``Auto'', the central processing unit (1) sequentially calls each liquid level control button (large) of the same control system to check the liquid level status. If the liquid level position data is the data that should drive the pump, then O
N data is set, and if the data should stop the pump, OFF data is set. Next, there is an operation switch that selects whether the bonding operation is only the bonding on the control block (2ta) side, only the pump on the control block (2□b) side, or "self-crossing" operation that alternately switches between both the pumps. It reads the operation data of SWb. Then, if there is an input of operation data for the case of orthogonal j, the ON data or OFF data set as described above is used as control data and sent to the control block (2,). If the data is ONN data, it is first sent as O/N signal data to one control unit lock (2Xa), and one pump is operated by control unit lock (21a, ). Surface control block (
2□) continues until it detects a predetermined liquid level, and when the liquid level control block (22) detects the predetermined liquid level, the data set becomes OFF data and the control block (21a)
') will stop the positive operation.

During pump operation according to this control block (2, a), OFF signal data is transferred from the central processing unit 11 to the other control block (21b) to set the corresponding pump in the OFF state. ing. Now, on the next liquid level side, when the Ozuotsuku (23) detects a drop in the liquid level that requires pump operation, the central processing unit +1+ sets an ON signal and switches the operation switch on the operation display block (25). City S
If the selection of Wb is "self-crossing", the other control block (
An ON signal is sent to 2□b) as data, and the pump corresponding to the control lock (2, b) is operated. The pump is operated by the central processing unit (1).
An ON signal or an OF signal is applied to the corresponding control locks (21a) and (2tb) to operate the pumps alternately.
It sends the F signal. Also, during this alternating operation,
The central processing unit (1) performs the operation of determining and determining the detection data of the abnormality detection blocks (23a) and (2, b).
21'a) and (23b). First of all
The detection data of the abnormality detection block (23a) is read and the presence or absence of an abnormality is determined. If the determination result is "absence", the detection data of the second abnormality detection block (23b) is read and it is determined whether or not there is an abnormality. If an abnormality is detected in each of the abnormality detection blocks (2, a) and (23b), the central processing unit (fl) sends OFF data to the corresponding control blocks (21a) and (21b). He stops Bonzu from driving. In addition, in response to these abnormality detection operations, the central processing unit (1) sends and receives display data to and from the operation display block (25). ) are installed in the display lamps for earth leakage, short circuit, phase input, and current flow Lla to L4a% L4b
~L4b is turned on or off. By the way, the abnormality detection program (23a), (2, b) and control
When the central processing unit (1) identifies the correspondence between the tsukus (21a) and (2□b), each function setting section (9) is configured so that code numbers for identifying functions and combinations can be set in combination. If you do this, you can identify the starting town.

By the way, the central processing unit (1) controls the control blocks (21a) and (21b) so that when an abnormality is detected in one of the pumps, the operation of one pump is stopped and the other pump is operated.
) is controlled remotely.

By the way, when the operation switch SWa is set to operate one of the pumps, the corresponding control blocks (2+a) and (2□b) are set for control, similar to the above-mentioned operation of one pump. The central processing unit fi+ transfers the signal "i+" based on the detection data of the liquid level control block (2λ).Of course, even when only this one pump is in operation, each abnormality detected (23a) ), (23b) The central processing unit (1) performs the same control operation as described above when an abnormality is detected.By the way, if the setting data of the operation switch SWa is "manual", the central processing unit (1) The arithmetic processing unit (1) sets an ON signal, sets an OFF signal when it is "off", and sets a control block (2) based on the setting of the operation switch swb when it is set to "manual".
, a), (21b) and anomaly detection block (211a)
, (2, Ab).

By the way, in the case of the above embodiment, the abnormality detection block (2
3) is used, but abnormalities in the power supply paths of both systems may be detected by one abnormality detection block (2,, l). In this case, when an abnormality is detected, the central processing unit +1) to both control blocks (2□a), (2
,b) Set Ryowarizuozu Lock (2) to Off.
The OFM number is transferred to □a) and (21b).

In addition, the above-mentioned abnormality detection (2, Ra), (2Bb
) The display on the operation display block (25) can be selected by a select switch SWd based on the detected data. Also, each separate control block (
21a) and (21b), the operation display block (25) shown in Figure 8 and the operation display lock (2,') shown in Figure 10 may be added to the unit (4,). good.

Operation display block (2s) Koke operation switch SWa
Instead, the display screen indicates whether the pump controlled by the control button (2□a) or (21b) is turned on or off by setting the code number in the function setting section (9) to one of the two pumps. If an identification code number is provided to indicate which unit the unit belongs to, it becomes possible to uniquely identify the central processing unit (U) at the start.

Although each of the above embodiments is a configuration of an electrical equipment control panel related to electrical equipment used to control pumps of water tanks, etc., it is also possible to develop it into various control systems by using other functional blocks. However, the present invention is not particularly limited to the above-mentioned embodiments.

Further, in FIGS. 8 to 10, 2 units are display units for digitally displaying data such as addresses, and LED1 to LED.

and LEDt~LED, tfi are light emitting diodes that display the respective switching setting states.

〔Effect of the invention〕

A control block that controls the r/i load of the present invention, an abnormality detection block that detects abnormalities in the power supply, etc., an operation display block that includes an operation switch and a display function for displaying load operation, etc., and operation information of the sequence circuit. A unit that is installed and connected to the external I10 bus of the central processing unit by arbitrarily selecting various functional blocks such as the Sequesys input processing block that processes Ω input, and the liquid level control block that monitors the liquid level of water receiving tanks, etc. The central processing unit is equipped with a determination function that determines the address assignment and function assignment for identifying the control system of each functional block during initial settings, and connects the same control systems. Since data is subsequently sent and received between the central processing unit and each functional block separately for each control system, an electrical equipment control panel with the necessary functions can be configured simply by connecting and installing the necessary functional blocks to the unit. Moreover, the function of multiple control systems can be controlled by address settings. Figure 9゜Figure 1o

Claims (1)

[Claims] (1) A control block that controls the load, an abnormality detection block that detects abnormalities in the power supply, etc., and a display function for displaying operation switches and load operation, etc.? Various functional blocks such as an operation display block, a sequence input processing block that inputs and processes operation information of the sequence circuit, and a liquid level control and lock that monitors the liquid level of the water tank etc. can be arbitrarily selected to control the central processing unit. External I10) (It has a unit that is connected and installed to An electrical equipment control panel that is installed in the central processing unit and is configured to send and receive data between the central processing unit and each functional block for each control system after initial setting. (2) For each functional block. The electrical equipment control panel according to claim 1, characterized in that is provided with changeable address setting means. (8) The determination function detects that two or more control blocks are located at the same address. The electrical equipment control panel according to claim 1, wherein control data is supplied from a central processing unit so as to operate these control blocks sequentially and cyclically. (4) The electrical equipment control according to claim 1, characterized in that the control block is provided with a switching means capable of switching between a mode in which the control block operates using data from the central processing unit and a mode in which it operates independently. Board.