JP3317580B2 - Solenoid valve control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a controller which is provided in each of a plurality of manifolds having solenoid valves connected in series and which drives the solenoid valves of each manifold collectively, and is provided so as to be able to communicate bidirectionally with these controllers. The present invention relates to an electromagnetic valve control device including a communication commander.

[0002]

2. Description of the Related Art Conventionally, a solenoid valve control device of this kind is shown in FIG.
There are the following. This is a solenoid valve 90A, ...
Each of the manifolds 91, 92, and 93 having a series of 90Rs is provided with controllers 94, 95, and 96 for collectively driving the solenoid valves in manifold units based on the solenoid valve drive data. Is manifold 91,
An identification code for identifying each other is set, and these controllers 94, 95, and 96 are connected to a communication commander 97 and a communication line 9.
8 is connected. The communication commander 97 includes a memory for temporarily storing the solenoid valve driving data output from the programmable controller 99. The controller 94, 9
5 and 96 are sequentially transmitted as serial signals via a communication line 98, and are converted into parallel signals by a controller having the same identification code, and the solenoid valves are collectively driven to operate corresponding cylinders.

Each of the cylinders 100A,..., 100I has a detection switch 101A,.
101I, and these detection switches 101A,.
The electric wires 102, 103, and 104 of 101I are connected to the controllers 94, 95, and 96, and the detection switches 101A,
.., The detection signals output from 101I are received as parallel signal detection data by controllers 94, 95, and 96. Controllers 94, 95, and 96 send the detection data together with identification codes to communication commander 97. A response is provided as a serial signal, converted into a parallel signal by the communication commander 97, temporarily stored in the memory, and input to the programmable controller 99.

For this reason, in the memory of the communication commander 97, an area for storing the solenoid valve driving data and an area for storing the detection data are preset so as to be grouped by the controllers 94, 95 and 96, respectively. It is provided. In this setting, prior to the trial operation after the main power supply of the apparatus is turned on, an operating device 107 having a screen 105 and a keyboard 106 is connected to the programmable controller 99, and the keyboard 106 is operated while watching the screen 105 of the operating device 107. The operation is performed.

[0005]

However, in this case, the keyboard 1 is viewed while viewing the screen 105 of the operating device 107.
However, there is a problem in that the setting is troublesome and cannot be easily performed because the setting is performed by operating the 06.

The present invention solves such a problem. The setting for grouping the storage areas of the parallel input signals in the memory of the communication command unit can be easily performed without manual operation using an operation unit. It is an object of the present invention to provide an electromagnetic valve control device which can be performed in a timely manner.

[0007]

SUMMARY OF THE INVENTION Therefore, the present invention provides a method for receiving serial valve solenoid valve drive data from a plurality of manifolds each having a series of solenoid valves and converting the serial signal into parallel signals. A controller having an identification code for identifying manifolds with a bidirectionally communicable device that converts detection data indicating the operation of a collectively driven solenoid valve or fluid circuit into a serial signal and returns the signal, and a parallel controller Two-way communication that converts signal solenoid valve drive data into a serial signal and sends it to the controller, and receives serial signal detection data returned from the communicator provided in the controller and converts it into a parallel signal And a temporary communication device for temporarily storing the solenoid valve drive data of the parallel signal output from the programmable controller and the detection data of the parallel signal returned from the controller in predetermined areas. And a communication command unit having a memory,
Each controller has a memory that temporarily stores electromagnetic valve drive data and detection data that are communicated by a communication device provided therein and that can set a storage area for storing both data, and immediately after the main power is turned on. In response to an inquiry code transmitted from the communication commander, a storage area data corresponding to the storage area of the memory is provided so as to be returned to the communication commander, and the communication commander transmits the storage area data returned from each controller. On the basis of this, a computing unit is provided for computing an address for storing the solenoid valve drive data and the detection data so that the data is arranged for each controller in a memory provided therein.

[0008]

According to the configuration of the present invention, in response to the inquiry code transmitted from the communication commander to the controller immediately after the main power is turned on, each of the controllers transmits the identification code together with the identification code.
The storage area data of the set solenoid valve drive data and the storage area data of the detection data are sequentially returned to the communication commander. The arithmetic unit of the communication command unit performs an arithmetic operation so that an address for storing solenoid valve drive data and an address for storing detection data are arranged for each controller based on the two storage area data of the received controller. In the memory of the command unit, the setting for configuring the storage areas of the parallel input signals by grouping them for each controller can be automated and easily performed.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. 1 to 6, reference numeral 1 denotes a first manifold which extends in a longitudinal direction a supply passage 6 connected to the pressure source 2, a return passage 5 connected to the tank 4, and a pilot passage 6 branched from the supply passage 3. And a plurality of load paths 7 formed therein and connected to the fluid actuator.
A,..., 7D are formed on the inside with openings on the side surfaces along the longitudinal direction. 8A and 8B are lamination portions of the first manifold 1, and supply passage 3, return passage 5, load passage 9A,.
, 9D, supply path 1 communicating with pilot path 6
0A, 10B, return paths 11A, 11B, load paths 7A,.
.., 7D and pilot paths 12A and 12B are provided with openings, and three are provided in the longitudinal direction of the first manifold 1 at intervals.

[0010] In each of the three stacked portions, a pilot-operated switching valve 13A, 13B, 13C is located at the uppermost stage, and flow control valves 14A, 14B with check valves are stacked and installed, and a fluid actuator is operated. It is provided so as to constitute a fluid circuit to be operated. , 15F are switching valves 1
3A, 13B and 13C are pilot operated solenoid valves.
A pair of solenoid valves 15A15B, 15C15D, and 15E15F are installed on each side surface of each of the laminated portions. The switching valves 13A, 13B and 13C are controlled by supplying the pilot fluid in the pilot passage 6 branched from the supply passage 3 through the supply passage 3 from the pressure source 2 and discharging the pilot fluid in the pilot chamber to the tank 4. Is provided.

Reference numerals 16A, 16B, and 16C denote cylinders serving as fluid actuators.
..., connected to 7D, switching valves 13A, 13B, 13C
Corresponding to the cylinders 16A and 16
The piston rods 18A, 18B and 18C of B and 16C are provided so as to move forward and backward. Then, of the pair of solenoid valves 15A15B, 15C15D, 15E15F, the switching valve 13 is excited by exciting the solenoid valves 15A, 15C, 15E.
A, 13B and 13C are switched and cylinder 16
Piston rods 18A, 18 of A, 16B, 16C
B, 18C advance, and the switching valves 13A, 13B, 13C are switched by the excitation of the solenoid valves 15B, 15D, 15F, and the piston rods 18A, 18B, 18C of the cylinders 16A, 16B, 16C are retracted. .

19A, 19B and 19C are cylinders 16
A, 16B, A detection switch that detects the operation of 16C,
It is provided at an end of each of the cylinders 16A, 16B, and 16C, and is provided so as to detect a forward end of the piston rod 18A, 18B, and 18C. Then, the detection switches 19A, 19B,
The detection signal detected at 19C is transmitted to the first
It is provided so as to be inputted to a controller S1 provided on the upper surface of the manifold 1.

Reference numeral 21 denotes a second manifold, which has the same configuration as the first manifold 1 except that the second manifold has five laminated portions and is different from the configuration of the first manifold 1. Each of the five stacked sections has a pilot operated switching valve 2
, 22E are positioned at the uppermost stage, and the flow control valves with check valves are arranged in a stacked manner to provide a fluid circuit for operating the fluid actuator. 23A, ...
.., 22E are pilot operated solenoid valves, and a pair of solenoid valves 23A23B, 23C23D, 2E are installed on each side of each laminated portion.
In each of 3E23F, 23G23H, and 23I23J, the pilot passage of the supply passage from the pressure source 2 to the pilot chamber of the corresponding switching valve 22A,. The switching valve 2 supplies the pilot fluid in the passage and discharges the pilot fluid in the pilot chamber to the tank 4.
, 22E are provided for switching control.

, 24E are cylinders as fluid actuators, which are connected to a load path by a hose 25, and are operated by switching the switching valves 22A,. , 25E of 24E are provided so as to move forward and backward. And a pair of solenoid valves 23A23B, 23C
The solenoid valves 23A, 23C, 23E, 23G, and 23I of 23D, 23E23F, 23G23H, and 23I23J are operated to switch the switching valves 22A,. ..., 26E moves forward and the solenoid valve 23B,
Switching valve 2 by excitation of 23D, 23F, 23H, 23J
, 22E are switched to operate cylinder 2
5A,..., 25E piston rod 26A,.
., 26E are provided to retreat.

, 27E are cylinders 25.
A, ..., a detection switch that detects the operation of 25E,
, 25E to detect the forward ends of the piston rods 26A,..., 26E. Then, the detection switches 27A,.
The detection signal detected at 27E is applied to the second
It is provided so as to be inputted to a controller S2 provided on the upper surface of the manifold 21.

Reference numeral 29 denotes a third manifold which has the same configuration as the first manifold 1 except that the third manifold has two laminated portions and is different from the configuration of the first manifold 1. Each of the two stacked parts has a pilot operated switching valve 3
A flow control valve with a check valve is laminated and installed with 0A and 30B positioned at the uppermost stage to provide a fluid circuit for operating a fluid actuator. 31A, ..., 31D
Is a solenoid valve for pilot-operating the switching valves 30A and 30B. A pair of solenoid valves is provided on each side of each laminated portion, and in each of the pair of solenoid valves 31A31B and 31C31D,
By energizing / de-energizing the pair of solenoid valves, the supply fluid flows through the supply passage from the pressure source 2 to the corresponding pilot chambers of the switching valves 30A and 30B, and the pilot fluid in the pilot passage branched from the supply passage is supplied. Is discharged to the tank 4 to control switching of the switching valves 30A and 30B.

Reference numerals 32A and 32B denote cylinders as fluid actuators, which are connected to a load path by a hose 33, and the switching valves 30A and 30B are operated so that the piston rods 34A and 34B of the corresponding cylinders 32A and 32B are moved forward and backward. Provided. And a pair of solenoid valves 3
Of 1A31B and 31C31D, solenoid valves 31A and 31
The switching valves 30A and 30B are switched by the excitation of C, and the piston rods 34A and 34A of the cylinders 32A and 32B are switched.
34B moves forward, the switching valves 30A and 30B are switched by the excitation of the solenoid valves 31B and 31D, and the cylinder 32
A, 32B are provided so that the piston rods 34A, 34B retreat.

35A and 35B are cylinders 32A and 32B
Detection switches for detecting the operation of the cylinders 32A, 3A
It is provided at the end of 2B to detect the forward ends of the piston rods 34A, 34B. The detection signals detected by the detection switches 35A and 35B are connected to the electric wiring 36.
Is provided to be input to the controller S3 provided on the upper surface of the third manifold 29.

Each of a plurality of drive mechanisms of the machine or the apparatus is driven by a cylinder connected to each of the manifolds 1, 21, and 29. Each of the manifolds 1, 21, and 29 is distributed and arranged in the vicinity of the drive mechanism. Have been. Further, controllers S1, S2, and S3 provided in each of the manifolds 1, 21, and 29 are connected to a control command unit 3 via a communication line 37.
8 is connected.

The controller S1 is configured as follows.
Reference numeral 39 denotes a memory which has an identification code of its own controller readably stored therein. 40 is a communication control element,
The serial signal received by the communication element 41 is converted into a parallel signal,
The identification code included in the parallel signal is compared with the identification code stored in the memory 39, and if they match, the solenoid valve drive data included in the parallel signal is temporarily stored in the memory 39.
The detection data temporarily stored in the memory 39 is converted into a serial signal by adding the identification code of its own controller S <b> 1 and output to the communication element 41. A communication device 42 is configured by the communication control element 40 and the communication element 41.

An arithmetic unit 43 reads the solenoid valve driving data temporarily stored in the memory 39 and outputs the data to a solenoid valve driving circuit 45 via a bus line 44. The solenoid valve is excited by the solenoid valve driving data. An electromagnetic valve 15A converts an excitation current signal output from a current detector 46 for detecting a current and a detection signal output from detection switches 19A, 19B, and 19C for detecting operation of the cylinders 16A, 16B, and 16C driven by the data. , ..., 15F and cylinder 1
It is provided that the data is written into the memory 39 as detection data indicating the operation of 6A, 16B, and 16C and is temporarily stored.

Reference numeral 47 denotes an electromagnetic valve drive data setting switch for setting a storage area in the memory 39 by the number of bytes N1 in order to temporarily store the electromagnetic valve drive data received by the communication device 42 in the memory 39. The switch 47A is turned on. By 1
By setting a byte storage area and turning on the switch 47B, a 2-byte storage area is set, and an output code b is added to this setting. In one embodiment, the first manifold 1 has a solenoid valve 15A,
, 15F are provided, and the solenoid valves 15A,..., 15F are collectively driven by 6-bit solenoid valve driving data. Therefore, a 1-byte storage area is set in the memory 39.

Reference numeral 48 denotes a detection data setting switch for setting a storage area in the memory 39 with the number of bytes M1 in order to temporarily store the detection data in the memory 39. By turning on the switch 48A, a 1-byte storage area is set. By setting the switch 48B to ON, a 2-byte storage area is set, and an input code c is added to this setting. In one embodiment, the current detector 46 outputs
Bit excitation current signal and detection switches 19A, 19B,
A 3-bit detection signal is obtained from 19C.
Is set to a 2-byte storage area. And communication device 4
Numeral 2 is provided to read ON / OFF states of the solenoid valve drive data setting switch 47 and the detection data setting switch 48 in response to the inquiry code, and to return them as storage area data.

The controller S2 is configured as follows.
Reference numeral 49 denotes a memory which has an identification code of its controller stored in a readable manner. 50 is a communication control element,
The serial signal received by the communication element 51 is converted into a parallel signal,
The identification code included in the parallel signal is compared with the identification code stored in the memory 49, and if they match, the solenoid valve driving data included in the parallel signal is temporarily stored in the memory 49.
The detection data temporarily stored in the memory 49 is converted into a serial signal by adding the identification code of its own controller S2, and is output to the communication element 51. The communication device 52 is constituted by the communication control element 50 and the communication element 51.

Numeral 53 denotes an arithmetic unit which reads out the solenoid valve driving data temporarily stored in the memory 49 and outputs it to the solenoid valve driving circuit 55 via the bus line 54, and the solenoid valve is excited by the solenoid valve driving data. An excitation current signal output by a current detector 56 that detects a current and a detection signal output by detection switches 27A,..., 27E that detect the operation of the cylinders 24A,. , Solenoid valve 23A, ..., 23J and cylinder 2
.., 24E are written into the memory 49 and temporarily stored.

Reference numeral 57 denotes an electromagnetic valve drive data setting switch for setting the storage area in the memory 49 by the number of bytes N2 in order to temporarily store the electromagnetic valve drive data received by the communication device 52 in the memory 49, and turns on the switch 57A. By 1
A 2-byte storage area is set by setting a byte storage area and turning on the switch 57B. In one embodiment, ten solenoid valves 23A,..., 23J are provided in the second manifold 21, and the solenoid valves 23A,.
Are collectively driven, a 2-byte storage area is set in the memory 49.

Reference numeral 58 denotes a detection data setting switch for setting a storage area in the memory 49 by the number of bytes M2 in order to temporarily store the detection data in the memory 49. A 1-byte storage area is set by turning on the switch 58A. , The switch 58B is turned on to set a 2-byte storage area. In one embodiment, the 10-bit excitation current signal from the current detector 56 and the detection switch 27
A,..., 27E are obtained from the 5-bit detection signal, and a 2-byte storage area is set in the memory 49. The communicator 52 responds to the inquiry code by setting the solenoid valve drive data setting switch 57 and the detection data setting switch 5
8 is provided so as to read the on / off state and return it as storage area data.

The controller S3 is configured as follows.
Reference numeral 59 denotes a memory which has an identification code of its own controller in a readable manner. 60 is a communication control element,
The serial signal received by the communication element 61 is converted into a parallel signal,
The identification code included in the parallel signal is compared with the identification code stored in the memory 59, and if they match, the solenoid valve driving data included in the parallel signal is temporarily stored in the memory 59.
The detection data temporarily stored in the memory 59 is converted into a serial signal by adding the identification code of its own controller S3, and is output to the communication element 61. The communication control element 60 and the communication element 61 constitute a communication device 62.

Numeral 63 denotes an arithmetic unit which reads out the solenoid valve driving data temporarily stored in the memory 59 and outputs it to the solenoid valve driving circuit 65 via the bus line 64 to excite the solenoid valve which is excited by the solenoid valve driving data. The electromagnetic valve 31 outputs an exciting current signal output from a current detector 66 that detects a current and detection signals output from detection switches 35A and 35B that detect the operation of the cylinders 23A and 23B driven by the data.
A,..., 31D and detection data indicating the operation of the cylinders 32A, 32B are written in the memory 59 and temporarily stored.

Reference numeral 67 denotes an electromagnetic valve drive data setting switch for setting a storage area in the memory 59 with the number of bytes N3 in order to temporarily store the electromagnetic valve drive data received by the communication device 62 in the memory 59, and turns on the switch 67A. By 1
A 2-byte storage area is set by setting a byte storage area and turning on the switch 67B. In one embodiment, four electromagnetic valves 31A,..., 31D are provided in the third manifold 29, and the electromagnetic valves 31A,. , A one-byte storage area is set in the memory 59.

Reference numeral 68 designates a detection data setting switch for setting a storage area in the memory 59 by the number of bytes M3 for temporarily storing the detection data in the memory 59. By turning on the switch 58A, a 1-byte storage area is set. , The switch 68B is turned on to set a 2-byte storage area. In one embodiment, the 4-bit excitation current signal from the current detector 66 and the detection switch 35
A 2-bit detection signal is obtained from A and 35B, and a 2-byte storage area is set in the memory 59. Then, in response to the inquiry code, the communication device 62 turns on / off the solenoid valve drive data setting switch 67 and the detection data setting switch 68.
The off state is read and returned as storage area data.

Reference numeral 69 denotes a programmable controller, which is a solenoid valve provided on the first manifold 1, the second manifold 21, and the third manifold 29.
A,..., 23J, 31A,..., 31D output solenoid valve driving data so as to collectively drive the solenoid valves according to a pre-programmed procedure, and excitation of the solenoid valve excited by the solenoid valve driving data. Detection switches 19A, 19B, 19C, 27A,... For detecting the operation of the cylinder driven by the exciting current signals output by the current detectors 46, 56, 66 for detecting the current and the data.
, 27E, 35A, and 35B, and an input card 71 for inputting detection signals output as detection data.

The output card 70 has 32 output terminals, each of which outputs a signal for energizing / de-energizing one solenoid valve, and these output terminals are provided at every eight output ports 72A,.
.., 15D, and collectively collects 6-bit solenoid valve driving data transmitted from the output port 72A to the controller S1 to collectively drive the six solenoid valves 15A,..., 15F of the first manifold 1. The controller S2 is used to collectively drive the ten solenoid valves 23A,... 23J of the second manifold 21 from the output port 72B and the output port 72C.
, Which collectively outputs 10-bit solenoid valve driving data to be transmitted to the controller S3 for collectively driving the four solenoid valves 31A,..., 31D of the third manifold 29 from the output port 72D. Are provided so as to collectively output the solenoid valve driving data, and wirings 73A, 73B, and 73C corresponding to the number of bits of each port are provided so as to be connected to the bus line 74.

The input card 71 has 40 input terminals, each of which has one input of an excitation current signal and a detection signal. These input terminals are provided at input ports 75A for every eight points.
.. divided into 75E, and the first manifold 1 from the controller S1 at the input port 75A and the input port 75B.
The input data of the second manifold 21 from the controller S2 is input collectively at the input port 75C and the input port 75D, and the third input from the controller S3 is input at the input port 75E. Manifold 29
, And the wirings 76A, 76B, 76C corresponding to the number of bits of each port.
Are connected to the bus line 74.

The communication commander 38 is configured as follows. Reference numeral 77 denotes a memory in which identification codes of the controllers S1, S2, and S3 and an inquiry code that is read when the main power is turned on are stored in a readable manner. Reference numeral 78 denotes a communication control element, which converts the solenoid valve drive data of the parallel signal temporarily stored in the memory 77 into a serial signal together with the identification code, outputs the serial signal to the communication element 79, and is returned from each of the controllers S1, S2, S3. The detection data of the serial signal to which the identification code is added is received by the communication element 79, converted into a parallel signal, and stored at a predetermined address of the memory 77. The communication control element 78 converts the inquiry code stored in the memory 77 into a serial signal immediately after turning on the main power supply, and
1, S2, and S3, and the storage area data returned from each of the controllers S1, S2, and S3 is received as a serial signal, converted into a parallel signal, and stored in the memory 77. The communication device 80 is composed of the communication control element 78 and the communication element 79.

Numeral 81 denotes an arithmetic unit based on the data of the solenoid valve drive data setting switches 47, 57, 67 and the detection data setting switches 48, 58, 68 stored in the memory 77, based on the output port 7 of the programmable controller 69.
Six solenoid valves 1 of the first manifold 1 that output from 2A
Controller S1 for driving 5A,..., 15F collectively
, A 1-byte storage area N1 for storing 6-bit solenoid valve drive data to be transmitted to the second manifold 21 and output from the output port 72B and the output port 72C. A 2-byte storage area N2 for storing 10-bit solenoid valve driving data to be transmitted to the controller S2 for driving, and four solenoid valves 31A of the third manifold 29 output from the output port 72D.
.., A 1-byte storage area N3 for storing 4-bit solenoid valve drive data to be transmitted to the controller S3 to drive the 31D collectively, and input to the input port 75A returned from the controller S1 of the first manifold 1 A 2-byte storage area M1 for storing 9-bit detection data input to the port 75B, and 1 input to the input port 75C and the input port 75D returned from the controller S2 of the second manifold 21
2-byte storage area M for storing 5-bit detection data
2 and a 1-byte storage area M3 for storing 6-bit detection data returned from the controller S3 of the third manifold 29 and input to the input port 75E in the memory 77 by an operation for grouping by controller. Is provided.

That is, the start address A1 for storing the solenoid valve driving data of the controller S1 is calculated at 82, and 8 is calculated.
In step 3, the start address B1 for storing the detection data of the controller S1 is calculated. Here, the output code b is data for recognizing the solenoid valve driving data, and the input code c is data for recognizing the detection data. At 84, a start address A2 for storing the solenoid valve drive data of the controller S2 is calculated from the number of bytes of the solenoid valve drive data of S1. In one embodiment, N1 is one byte, so A2
Becomes A1 + 1. In step 85, a start address A3 for storing the solenoid valve drive data of the controller S3 is calculated from the number of bytes of the solenoid valve drive data of S2. In one embodiment, N2
Is 2 bytes, so A3 is A1 + 3.

At 86, a start address B2 for storing the detected data of the controller S2 is calculated from the number of bytes of the detected data of the controller S1. In one embodiment, M1 is 2 bytes, so B2 is B1 + 2. At 87,
The head address B3 for storing the detection data of the controller S3 is calculated from the number of bytes of the detection data of S2. In one embodiment, B3 is B1 + 4 because M2 is 2 bytes.

Next, the operation of the above configuration will be described. In a state where the solenoid valve driving data is not output from the output card 70 of the programmable controller 69, the cylinders 16A connected to the respective manifolds 1, 21, 29,.
6C, 24A,..., 24E, 32A, 32B are shown in FIG.
It is at the retreat end like. From this state, the solenoid valve driving data for driving the solenoid valve of the first manifold 1 is output from the output card 7.
When output from 0, the communication control element 78 included in the communication command unit 38 temporarily stores the data in a 1-byte area from a preset address A1 in the memory 77,
An identification code of the controller S1 of the first manifold 1 to be transmitted is added, the parallel signal is converted to a serial signal, and transmitted to the communication line 37.

In the controller S 1 of the first manifold 1, the communication control element 40 receives the data, converts it into a parallel signal, and stores it in the area set by the solenoid valve drive data setting switch 47 of the memory 39. The arithmetic unit 43 compares the identification code stored in the memory 39 in advance with the identification code included in the transmitted solenoid valve drive data, and if they match, outputs the received solenoid valve drive data to the solenoid valve drive circuit 45 in a lump. The solenoid valve provided in the first manifold 1 is driven based on the solenoid valve driving data, and the corresponding cylinder operates. The operation of the cylinder is detected by the detection switch 19A,.
, Detected by 19C and input to the controller S1 via the electric wiring 20. At the same time, the solenoid valves 15A,.
The exciting current of 5F is detected by the current detector 46.
The detection data of the detection signals of the detection switches 19A,..., 19C and the excitation current signal of the current detector 46 are stored in the area of the memory 39 set by the detection data setting switch 48. The communication control element 40 adds its own identification code to the detection data and returns it to the communication commander 38. The communication control element 78 of the communication commander 38 receives the detection data, converts it into a parallel signal, and temporarily stores the data in a 1-byte area from a preset address B1 in the memory 77. This data is read into the programmable controller 69, and the processing of the next program is started.

The storage area for temporarily storing the solenoid valve drive data and the detection data in the memory 77 is provided by the communication commander 38 immediately after the main power of the apparatus is turned on.
The data of the solenoid valve drive data setting switches 47, 57, 67 and the detection data setting switches 48, 58, 68 sequentially returned from the controllers S1, S2, S3 in response to the inquiry code transmitted to S2, S3. It is done based on. That is, the start address A1 of the solenoid valve drive data D1 for the controller S1 and the start address B1 of the detection data K1 are calculated, and the number of bytes of the solenoid valve drive data D1 is calculated as the start address A.
1 and the start address A2 of the solenoid valve drive data D2
And the number of bytes of the solenoid valve drive data D1 and D2 is added to the start address A1 to determine the start address A3 of the solenoid valve drive data D3. Therefore, an area for storing the solenoid valve drive data of the controller S1 can be secured by 1 byte from the address A1, and an area for storing the solenoid valve drive data of the controller S2 can be secured by 2 bytes from the address A1 + 1 following this area. Subsequently, an area for storing the solenoid valve driving data of the controller S3 can be secured by one byte from the address A1 + 3. Similarly, the number of bytes of the detection data K1 is added to the start address B1 to obtain a start address B2 of the detection data K2, and the number of bytes of the detection data K1 and K2 is added to the start address B1 to obtain the start address B3 of the detection data K3. Seeking. Therefore, an area for storing the detection data of the controller S1 can be secured by 2 bytes from the address B1, and an area for storing the detection data of the controller S2 can be secured by 2 bytes from the address B1 + 2 following this area. An area for storing the detection data of the detector S3 can be secured by one byte from B1 + 4.

As described above, the computing unit 81 of the communication command unit 38
Is the output port 72 of the programmable controller 69
A,..., 72D, solenoid valve drive data output from the communication commander 38 and transmitted to the controllers S1, S2, and S3, and returned from the controllers S1, S2, and S3 and programmed by the communication commander 38. An address for temporarily storing the detection data input to the input ports 75A,..., 75E of the controller in the memory 77 of the communication commander 38 is calculated so as to be arranged for each controller immediately after the main power is turned on. Therefore, in the memory 77 of the communication command unit 38,
The storage area for the solenoid valve drive data and the detection data is grouped for each controller, and the setting for configuring can be automated and easily performed.

A computing unit 81 provided in the communication command unit 38
This makes it possible to make settings for grouping and configuring areas for storing solenoid valve drive data and detection data, and eliminates the need for an operating device having a screen and a keyboard as in the related art, thereby reducing the cost of the device. .

Furthermore, since the setting can be performed only by turning on the main power, the time and labor can be greatly reduced as compared with the conventional one, and the setting operation can be performed more easily.

In one embodiment, the communicator 80 of the communication commander 38 is connected to the communicators 42, 5 of the controllers S1, S2, S3.
Although the communication lines 37 are connected to the communication lines 2 and 62 so as to be able to communicate bidirectionally via the communication line 37, this may be performed wirelessly.

Further, in one embodiment, the detection data includes an exciting current signal output from the current detectors 46, 56, and 66,
Cylinders 16A,..., 16C, 24A,.
Detection switch 19 indicating operation of 4E, 32A, 32B
A, ..., 19C, 27A, ..., 27E, 35
A and 35B are both detection signals, but either one of them may be used. Also, the detection signal is output from the cylinders 16A,..., 16C, 24A,.
It may be a signal indicating the pressure of the working fluid in 24E, 32A, 32B.

[0047]

As described above, according to the present invention, the solenoid valve drive data of the serial signal is received and converted into a parallel signal by each of the plurality of manifolds having the solenoid valves connected in series.
A control device that has a bidirectional communicator that converts detection data indicating the operation of an electromagnetic valve or a fluid circuit that is collectively driven by the parallel signal into a serial signal and returns the identification data, and that has an identification code for identifying the manifolds. And a controller that converts the solenoid valve driving data of the parallel signal into a serial signal and transmits it to the controller, and also receives the detection data of the serial signal returned from the communication device provided in the controller and converts it into a parallel signal. A communication command comprising a memory for temporarily storing in a predetermined area each of the solenoid valve drive data of the parallel signal outputted from the programmable controller and the detection data of the parallel signal returned from the controller, provided with a communication device capable of communicating in a predetermined direction. Each controller temporarily stores solenoid valve drive data and detection data that are communicated by its own communication device, and can set a storage area to store both data. And a memory area corresponding to the memory area of the memory is returned to the communication commander in response to an inquiry code transmitted from the communication commander immediately after the main power is turned on. Based on the storage area data returned from each controller, the controller calculates the address for storing the solenoid valve drive data and the detection data in the memory provided therein so that the two data are arranged for each controller. The solenoid valve drive data and the detection data are arranged for each controller by the arithmetic unit of the communication commander based on the storage area data returned from each controller immediately after the main power is turned on. Since the address for storing the solenoid valve drive data and the address for storing the detection data are calculated, the storage area of the parallel input signal is controlled in the memory of the communication commander. It can be easily performed by automated settings configured by grouping every.

Further, it becomes possible to make settings for grouping and configuring areas for storing solenoid valve drive data and detection data by an arithmetic unit provided in the communication commander, and to provide a conventional screen and keyboard. The operation device is not required, and the cost of the device can be reduced.

Further, since the setting can be performed only by turning on the main power, the time and labor can be greatly reduced as compared with the conventional one, and the setting operation can be performed more easily.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a solenoid valve control device according to an embodiment of the present invention.

FIG. 2 is a fluid circuit diagram of a manifold.

FIG. 3 is an electric circuit diagram of each controller.

FIG. 4 is a block diagram of an electric circuit of a programmable controller and a communication command device.

FIG. 5 is a flowchart showing a procedure for calculating an address for storing solenoid valve drive data and detection data in a memory of a communication commander.

FIG. 6 is a block diagram showing a storage area of a memory.

FIG. 7 is a block diagram showing a configuration of a conventional solenoid valve control device.

[Explanation of symbols]

1, 21, 29 Manifolds 15A, 15B, 15C, 15D, 15E, 15F, 2
3A, 23B, 23C, 23D, 23E, 23F, 23
G, 23H, 23I, 23J, 31A, 31B, 31
C, 31D solenoid valve 16A, 16B, 16C, 24A, 24B, 24C, 2
4D, 24E, 32A, 32B Fluid actuator 19A, 19B, 19C, 27A, 27B, 27C, 2
7D, 27E, 35A, 35B Detection switch 38 Communication commander 39, 49, 59, 77 Memory 42, 52, 62, 80 Communication device 69 Programmable controller 81 Operation unit S1, S2, S3 Controller

Claims (1)

(57) [Claims] 1. A plurality of manifolds provided with solenoid valves connected in series receive solenoid valve driving data of a serial signal and convert the data into parallel signals. A controller having an identification code for identifying manifolds with a two-way communicator that converts detection data indicating operation into a serial signal and returns it, and converts solenoid valve drive data of a parallel signal into a serial signal. It has a bidirectional communicator that converts and transmits to the controller and receives serial signal detection data returned from the communicator provided in the controller and converts it into a parallel signal. A communication commander having a memory for temporarily storing the electromagnetic valve drive data of the parallel signal and the detection data of the parallel signal returned from the controller in a predetermined area, Each controller has a memory that temporarily stores electromagnetic valve drive data and detection data that are communicated by a communication device provided therein and that can set a storage area for storing both data, and immediately after the main power is turned on. In response to an inquiry code transmitted from the communication commander, a storage area data corresponding to the storage area of the memory is provided so as to be returned to the communication commander, and the communication commander transmits the storage area data returned from each controller. A solenoid valve control device, comprising: an arithmetic unit for calculating an address for storing both the solenoid valve drive data and the detection data in a memory provided in the memory so as to arrange the solenoid valve drive data and the detection data for each controller. .