JPH07239052A - Solenoid valve control device - Google Patents

Abstract

PURPOSE:To provide a solenoid valve control device with which the operation of a fluid actuator can be monitored in real time. CONSTITUTION:Controllers 23, 32, 41 for collectively driving solenoid valves are provided in a plurality of manifolds 1, 24, 33 in which the solenoid valves 17A,..., 17H, 26A,..., 26D, 35A,..., 35F are provided in a row, and those controllers have an identification code for identifying each manifold. Thereby, detection switches 21A,..., 21D, 30A, 30B, 39A,..., 39C are provided in fluid actuators 18A,..., 18D, 27A, 27B, 36A,..., 36C which are operated by driving of the solenoid valves, and a display device 44 for displaying the operation of the fluid actuators is connected to the controllers through a communication line 42 to display the operation of the fluid actuators in the display device 44.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid in which a controller is provided in each of a plurality of manifolds in which solenoid valves are connected in series, and the operation of a fluid actuator operated by driving the solenoid valve by the controller is displayed. The present invention relates to a valve control device.

[0002]

2. Description of the Related Art Conventionally, a solenoid valve control device of this type is shown in FIG.
There is one shown in. This is a solenoid valve 100A ...
.., manifolds 101A and 101 in which 100R are connected in series
Controllers 102A and 10B that include a plurality of Bs and 101Cs, and each manifold collectively drives its own solenoid valve.
2B and 102C are provided, and controllers 102A, 102B and 1 are provided.
02C includes manifolds 101A, 101B, 101
C Set identification data for identifying each other, and these controller 1
02A, 102B, 102C and the control command device 103 are connected by a communication line 104, and the control command device 103 outputs a data signal including an identification code and solenoid valve drive data for driving the solenoid valve of the manifold corresponding to the identification code. Serial signals are sequentially transmitted to the controllers 102A, 102B, and 102C, and the controllers 102A, 102B, and 102C convert the solenoid valve drive data of the data signal that matches the identification code set by themselves into parallel signals, and the solenoid valves. To drive the cylinders 105A, ..., 105 as fluid actuators.
I was supplying working fluid.

Cylinders 105A, ..., 10
Detection switch 106A for detecting the operation of 5I,
.... 106I as cylinders 105A, ..., 105I
, These detection switches 106A, ..., 106
I electrical wiring 107A, 107B, 107C to the controller 1
02A, 102B, 102C, and the detection signals output from the respective detection switches 1006A, ..., 106I are received by the controllers 102A, 102B, 102C, and the detection signals are received from the controllers 102A, 102B, 102C. Is transmitted as a serial signal to the control command device 103 together with the identification code, and the operation of the cylinders 105A, ..., 105I in each manifold 101A, 101B, 101C is displayed on the display device 108 provided in the control command device 103. There is.

[0004]

However, in this device, the operation of the cylinders 105A, ..., 105I is displayed on the display 108 provided in the control command device 103, and the manifolds 101A, 101B, 101C are displayed. The larger the number of, the greater the number of processing steps executed by the control commander 103, and the slower the overall processing.
There is a problem that the operation of 05A, ..., 105I is displayed later than the actual operation.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a solenoid valve control device capable of monitoring the operation of a fluid actuator in real time.

[0006]

Therefore, according to the present invention, a controller having a unique identification code for collectively driving the solenoid valves according to the solenoid valve drive data is provided in each of a plurality of manifolds in which solenoid valves are connected. A detection switch for detecting the operation of the fluid actuator is provided in the fluid actuator that is operated by the solenoid valve being driven by the solenoid valve drive data, and the detection data of the detection switch is input to the controller and sent as a serial signal from the communication line. The solenoid valve drive data with the identification code is input and converted into a parallel signal, and the detection signal detected by the detection switch is input with the identification code of the controller to which the detection switch is input. The controller is equipped with a bidirectional communicator that converts and transmits to the controller, and displays the operation of the fluid actuator based on the detected data. The display device is provided separately from each controller and connected to the communication line, and the display device receives the detection data added with the identification code from the controller as a serial signal from the communication line and converts it into a parallel signal. And a manifold corresponding to the identification code of the data transmitted from the controller received by the communication device of the display device and the operation of the fluid actuator based on the detected data are displayed on the display device provided in the display device. The communication control element thus configured is provided in the communication device of the display device.

Further, the display device is capable of bidirectional communication in which the communication device converts a serial signal from a communication line into a parallel signal for input and converts the parallel signal into a serial signal for output to the communication line. In addition, an operating device for setting an identification code and solenoid valve drive data for operating a predetermined fluid actuator is provided, and the solenoid valve drive data added with the identification code set by the operating device is converted into a serial signal. It can be transmitted to the controller via a communication line.

Further, the display device is detachably connectable to each controller.

[0009]

According to the structure described in claim 1 of the present invention, the operation of the fluid actuator is detected by the detection switch provided in the fluid actuator and input to the control provided in the manifold. The detection data of the detection switch is added with an identification code unique to each controller in each controller, converted into a serial signal by the communication device, and transmitted to the display device via the communication line. The communication control element provided in the display device compares the identification code added to the detection data with the unique identification code of each controller that has its own, and the manifold corresponding to the matching identification code and the fluid actuator based on the detection data. Since the operation is displayed on the display, the operation of the fluid actuator can be monitored in real time.

According to the second aspect of the present invention, the display device converts the identification code set by the operation device and the solenoid valve drive data into a serial signal by the communication device of the display device, and the serial signal is transmitted via the communication line. Transmit to a controller having an identification code that matches the identification code. The controller drives the solenoid valve based on the received solenoid valve drive data. The operation of the fluid actuator operated by driving the solenoid valve is detected by a detection switch provided in the fluid actuator and input to the controller. The detection data of the detection switch is added with a unique identification code possessed by the controller in the controller, converted into a serial signal by the communication device, and transmitted to the display device through the communication line. The communication control element provided in the display device compares the identification code added to the detection data with the unique identification code of each controller that has its own, and the manifold corresponding to the matching identification code and the fluid actuator based on the detection data. Since the operation is displayed on the display, the operation of the fluid actuator can be monitored in real time.

Further, according to the structure of claim 3,
Regardless of which controller the display device is connected to, the communicator of the display device can be connected to the communicator of the controller so that the operation of the fluid actuator can be monitored in real time.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 to 6, reference numeral 1 denotes a first manifold, which is formed with a raised portion 2 along the longitudinal direction at an upper portion thereof, and has a wide portion 3 below the raised portion 2 so that a cross-sectional shape orthogonal to the longitudinal direction has a convex shape. Have In the wide portion 3 of the first manifold 1, a supply passage 5 connected to the pressure source 4, a return passage 7 connected to the tank 6, and a pilot passage 8 branched from the supply passage 5 extend in the longitudinal direction. And a plurality of load paths 9A, 9B, 9C, 9D, 9E, which are formed inside and are connected to the fluid actuator.
9F, 9G and 9H are formed inside by opening on the side surface along the longitudinal direction. 10A and 10B are the first manifold 1
Is a laminated portion formed on the upper surface of the raised portion 2 of
Return passage 7, load passages 9A, 9B, 9C, 9D, 9E,
9F, 9G, 9H, supply passages 11A, 11B, return passages 12A, 12B, load passages 13A, 13B, 13C, 13D, pilot passages 14 which communicate with the pilot passages 8 respectively.
A and 14B are provided so as to be open, and four are provided at intervals in the longitudinal direction of the first manifold 1.

Pilot-operated switching valves 15A, 15B, 15C and 15D are located at the top of the four laminated portions, and flow control valves 16A and 16B with check valves are provided.
16C and 16D are stacked and installed so as to form an operation circuit of the fluid actuator. 17A, 17B, 1
7C, 17D, 17E, 17F, 17G, and 17H are solenoid valves that pilot-operate the switching valves 15A, 15B, 15C, and 15D. A pair of solenoid valves 17A17B are installed on each side of the ridge 2 for each laminated portion. , 17C17D, 1
In each of 7E17F and 17G17H, the corresponding switching valve 15 is provided by energizing / de-energizing the pair of solenoid valves.
Pressure source 4 to pilot chambers A, 15B, 15C and 15D
By supplying the pilot fluid in the pilot passage 8 that circulates through the supply passage 5 and branched from the supply passage 5 or discharges the pilot fluid in the pilot chamber to the tank 6, the switching valve 1
5A, 15B, 15C, and 15D are provided to control switching.

Reference numerals 18A, 18B, 18C and 18D are cylinders as fluid actuators, which are connected to the load passages 13A, 13B, 13C and 13D by a hose 19 and are provided with the switching valve 1
The piston rods 20A, 20B, 20C, 20D of the corresponding cylinders 18A, 18B, 18C, 18D are provided to be moved forward and backward by the switching operation of 5A, 15B, 15C, 15D. And a pair of solenoid valves 17A1
Of 7B, 17C17D, 17E17F, solenoid valve 17
Switching valve 15 by exciting A, 17C, 17E, 17G
A, 15B, 15C and 15D are switched and actuated to move the piston rods 20A, 20B, 20C and 20D of the cylinders 18A, 18B, 18C and 18D forward and the solenoid valve 1
Switching valve 15 by exciting 7B, 17D, 17F, 17H
The piston rods 20A, 20B, 20C and 20D of the cylinders 18A, 18B, 18C and 18D are provided so as to be retracted when the A, 15B, 15C and 15D are switched and operated.

Reference numerals 21A, 21B, 21C and 21D denote detection switches for detecting the operation of the cylinders 18A, 18B, 18C and 18D, which are cylinders 18A, 18B, 18C and 18D.
The piston rods 20A, 20B, 20 are provided at the end of D.
It is provided to detect the forward ends of C and 20D. The detection data detected by the detection switches 21A, 21B, 21C, and 21D are provided so as to be input to the controller 23 provided on the upper surface of the first manifold 1 by the electric wiring 22.

A second manifold 24 has the same structure as the first manifold 1 except that it has two laminated portions formed on the upper surface of the raised portion, except that the structure of the first manifold 1 is different. There is. Pilot-operated switching valves 25A and 25B are located at the top of each of the two laminated portions, and a flow control valve with a check valve is arranged in a laminated manner so as to form an operation circuit of the fluid actuator. 26A, 26
B, 26C, 26D are switching valves 25A, 25B, 25C,
25D is a solenoid valve pilot-operated. One pair is installed on each side surface of the ridge for each laminated portion.
6B, 26C26D, the corresponding switching valves 25A, 2A, 2B, 2C, 2D, 2D, 2D, 2D, 2D, 2D, 2C, 2D, 6C, 26C26D, respectively, depending on whether the pair of solenoid valves are energized or de-energized.
5B, the pilot fluid in the pilot passage circulated through the supply passage from the pressure source 4 and branched from the supply passage is supplied to the pilot chamber of 5B, and the pilot fluid in the pilot chamber is supplied to the tank 6
It is provided so as to control the switching of the switching valves 25A and 25B.

27A and 27B are cylinders as fluid actuators, which are connected to a load passage by a hose 28, and the piston rods 29A and 29B of the corresponding cylinders 27A and 27B are moved forward and backward by switching operation of the switching valves 25A and 25B. It is provided. And a pair of solenoid valves 2
Solenoid valves 26A, 26C of 6A26B, 26C26D
The switching valves 25A and 25B are switched and activated by the excitation of the piston rods 29A and 2B of the cylinders 27A and 27B.
9B moves forward, and the switching valves 25A and 25B are switched and activated by the excitation of the solenoid valves 26B and 26D, so that the cylinder 27
Piston rods 29A and 29B of A and 27B are provided so as to retract.

30A and 30B are cylinders 27A and 27B
The detection switch that detects the operation of the cylinders 27A, 2
It is provided at the end of 7B so as to detect the forward ends of the piston rods 29A and 29B. The detection data detected by the detection switches 30A and 30B is the electric wiring 3
1, the controller 32 provided on the upper surface of the second manifold 24.
It is provided to be input to.

A third manifold 33 has the same construction as the first manifold 1 except that it has three laminated portions formed on the upper surface of the raised portion, except that the construction of the first manifold 1 is different. There is. Pilot operated switching valves 34A, 34B and 34C are located at the top of each of the three laminated parts, and a flow control valve with a check valve is laminated and installed so as to form an operation circuit of a fluid actuator. ing. Three
5A, 35B, 35C, 35D, 35E, and 35F are solenoid valves that pilot-operate the switching valves 34A, 34B, and 34C. One pair of solenoid valves 35A35B, 35C35D is installed on each side of the ridge for each stacking portion. 35E35F
In each of the above, by energizing / de-energizing the pair of solenoid valves, the pilot fluid in the pilot passage circulated through the supply passage from the pressure source 4 and diverged from the supply passage is supplied to the corresponding pilot chamber of the switching valve 34A, 34B, 34C. Alternatively, the pilot fluid in the pilot chamber is discharged to the tank 6, and the switching valves 34A, 34B and 34C are controlled to be switched.

Reference numerals 36A, 36B and 36C are cylinders as fluid actuators, which are connected to a load passage by a hose 37, and piston rods 38A of corresponding cylinders 36A, 36B and 36C are connected by switching operations of the switching valves 34A, 34B and 34C. 38B and 38C are provided so as to move forward and backward. And a pair of solenoid valves 35A35B, 35C
Of 35D, 35E35F, solenoid valves 35A, 35C,
The switching valves 34A, 34B, 34C are switched by the excitation of 35E, the piston rods 38A, 38B, 38C of the cylinders 36A, 36B, 36C are moved forward, and the switching valves 34A, 3D, 35F are excited.
4B and 34C are switched to operate cylinders 36A and 3C.
6B, 36C piston rods 38A, 38B, 38C
Is set to move backward.

Reference numerals 39A, 39B and 39C are cylinders 36
With a detection switch that detects the operation of A, 36B, 36C,
It is provided at the ends of the cylinders 36A, 36B, 36C so as to detect the forward ends of the piston rods 38A, 38B, 38C. Then, the detection switches 39A and 39
The detection data detected by B and 39C are provided so as to be input to the controller 41 provided on the upper surface of the third manifold 33 by the electric wiring 40.

The cylinders connected to the manifolds 1, 24, 33 are used to drive a plurality of drive mechanisms of the machine or device, and the manifolds 1, 24, 33 are distributed and arranged in the vicinity of the drive mechanisms. Has been done. Further, the controllers 23, 32, 41 provided in each of the manifolds 1, 24, 33 are controlled by the control commander 4 via the communication line 42.
Cylinders 18A, 18B, 18C, 18D, 27 connected to each manifold 1, 24, 33 while being connected to
A display device 44 for displaying the operation of A, 27B, 36A, 36B and 36C is connected to the communication line 42.

The control commander 43 is constructed as follows. A programmable controller 45 includes a first manifold 1, a second manifold 24, and a third manifold 3.
3, an output card 46 for outputting solenoid valve drive data to drive the solenoid valve according to a pre-programmed procedure, and an input card 4 for inputting detection data of a detection switch provided in a cylinder operated by driving the solenoid valve.
7 and 7. The output card 46 has 64 output ports, one of which corresponds to the driving of one solenoid valve. Of these 64 output ports, the output card 46 is divided for each manifold according to the number of solenoid valves. The output is provided for each manifold at once. Also, the input card 47
Has 64 input ports, one of which corresponds to ON / OFF of one detection switch, and is provided so that the detection signal of the detection switch is collectively input as detection data for each manifold. 49 is a memory, each manifold 1,
An identification code unique to each of the controllers 23, 32, 41 provided in 24, 33 and an identification code of the control commander 45 are readable and stored. 49 is a communication control element,
The solenoid valve drive data output from the output card 46 of the programmable controller 45 is determined based on the output port to be output, and the identification code of the corresponding controller and the identification code of the control commander 43 are determined. The parallel signal read from the storage device 49, added with the identification code of the controller corresponding to the solenoid valve drive data and the identification code of the control command device 43, is converted into a serial signal, and the communication element 50 is converted.
To the input card 4 of the programmable controller 45 based on the identification code included in the received data by converting the serial signal received by the communication element 50 into a parallel signal.
It is provided to input data to the corresponding input port of 7. Then, the communication control element 49 and the communication element 50 form a communication device 51. Reference numeral 52 is a computing unit, which is a bus line 53
It is provided to monitor the above data and to authorize the communication control element 49 to operate.

The controller 23 provided in the first manifold 1 is constructed as follows. Reference numeral 54 is a storage device which stores the identification code of its own controller 23 and the identification code of the control command device 43 in a readable manner. Reference numeral 55 denotes a communication control element, which converts a serial signal received by the communication element 56 into a parallel signal, and stores the identification code of the control commander 43 and the identification code of the controller included in the parallel signal in the memory 54. If they are compared and if they match, the 8-bit solenoid valve drive data contained in the parallel signal is output to the solenoid valve drive circuit 58 via the bus line 57, and the eight solenoid valves 17A, 17B, 17C provided in the first manifold 1 are output. , 17D, 17E, 17
F, 17G, and 17H are provided so as to be collectively driven. Further, the communication control element 55 is provided with the detection switches 21A, 2 and
1B, 21C and 21D detect the detection data and the current detector 59 detects the excitation current data and the controller 23 of its own.
Is added to the communication element 5 to convert it into a serial signal.
It is provided to output to 6. And the communication control element 5
5 and the communication element 56 constitute a communication device 60. 61
Is an arithmetic unit, which is provided to monitor the data on the bus line 57 and give the operation permission to the communication control element 55.

A controller 32 provided in the second manifold 24
Is configured as follows. Reference numeral 62 denotes a storage device, which stores the identification code of its own controller 32 and the identification code of the control command device 43 in a readable manner. Reference numeral 63 denotes a communication control element, which converts a serial signal received by the communication element 64 into a parallel signal, and stores the identification code of the control commander 43 and the identification code of the controller included in the parallel signal in the memory 62. Compare, and if they match, 4 in parallel signal
The solenoid valve drive data of the bit is output to the solenoid valve drive circuit 66 via the bus line 65, and the four solenoid valves 26A, 26B, 26C, and 26D provided in the second manifold 24 are collectively driven. Further, this communication control element 63 is
The detection data detected by the detection switches 30A and 30B and the excitation current data detected by the current detector 67 are provided with an identification code of their own controller 32, converted into a serial signal, and output to the communication element 64. There is. The communication control element 64 and the communication element 64 form a communication device 68. 69 is an arithmetic unit that monitors the data on the bus line 65,
The communication control element 63 is provided to permit the operation.

Controller 41 provided in the third manifold 33
Is configured as follows. Reference numeral 70 denotes a storage device, which stores the identification code of its own controller 41 and the identification code of the control command device 43 in a readable manner. Reference numeral 71 denotes a communication control element, which converts a serial signal received by the communication element 72 into a parallel signal, and stores the identification code of the control commander 43 and the identification code of the controller included in the parallel signal in the memory 70. Compare, and if they match, have 6 in the parallel signal
The solenoid valve drive data of the bit is output to the solenoid valve drive circuit 74 via the bus line 73, and the six solenoid valves 35A, 35B, 35C, 35D, 35E provided on the third manifold 33,
35F is provided so as to be collectively driven. Further, the communication control element 71 includes detection switches 39A, 39B, 39C.
The detection data detected by and the excitation current data detected by the current detector 75 are provided with an identification code of their own controller 41, converted into a serial signal, and output to the communication element 72. The communication control element 71 and the communication element 72 form a communication device 76. Reference numeral 77 is an arithmetic unit, which is a bus line 7
3 is provided so as to monitor the data on the No. 3 and give the operation permission to the communication control element 71.

The display device 44 is constructed as follows. Reference numeral 79 denotes a storage device, which stores the identification code unique to each of the controllers 23, 32, 41 in a readable manner.
Reference numeral 80 denotes a communication control element, which converts serial signals received by the communication element 81 from the controllers 23, 32, 41 into parallel signals,
The identification code of the controller included in this parallel signal is stored in the memory 79.
The data stored in the memory is stored in the memory 79 via the bus line 82, and the detected data is read out and displayed on the display 83. It is provided. The communication control element 80 and the communication element 81 form a communicator 84.
Reference numeral 85 denotes an arithmetic unit, which is provided so as to monitor the data on the bus line 82 and give an operation permission to the communication control element 80. Furthermore, the communication device 84 of the display device 78, the communication device 51 of the control command device 43, and the communication device 6 of the controllers 23, 32, 41.
The communication lines 42 are connected to 0, 68, and 76. The display device 44 is provided in a small size so that it can be carried by one hand.

The indicator 83 included in the display device 44 is a 7-segment LED 87A for displaying the manifold number,
87B, 87C and light-emitting diodes 88A, 88B, 88C, 88D for lighting and displaying the detection switches which are turned on.
It consists of 88E, 88F, 88G, 88H, 88I,
The 7-segment LED 87A indicates 1 of the first manifold 1, and the four light-emitting diodes 88A, 88B, 88
The detection switches 21D, 21
It is provided to display the on / off operation of C, 21B, and 21A. In addition, the 7-segment LED 87B indicates 2 of the second manifold 24, and the two light-emitting diodes 88
Detection switches 30B and 30A in order from the top at E and 88F
It is provided to display the on / off operation of. 7 more
The segment LED 87C indicates 3 of the third manifold 33, and three light emitting diodes 88G, 88H, 88I are provided.
In order to display the ON / OFF operation of the detection switches 39C, 39B, 39A from the top.

Reference numeral 91A denotes an operating device for manually operating the cylinders 18A, 18B, 18C, 18D connected to the first manifold 1, which includes an operating button 89A and four switches 90A, 9A.
0B, 90C, 90D, and the transmission of data from the control commander 43 to the communication line 42 is stopped by pressing the operation button 89A, and is stored under the operation of the communication controller 80 of the display device 44. Controller 2 stored in the device 79
Switch 90A, 90B, 9 with the identification code of 3 added
The solenoid valve drive data set at 0C and 90D is provided so as to be converted into a serial signal and transmitted to the communication line 42. When the switch 90A is turned on, the solenoid valve 17G is excited to move the cylinder 18D forward, and when the switch 90A is turned off, the solenoid valve 17H is excited to move the cylinder 18D.
Is provided so that the solenoid valve 17E is excited by the ON setting of the switch 90B to advance the cylinder 18C, and the solenoid valve 17F is excited by the OFF setting of the switch 90B so that the cylinder 18C is retracted. Is set so that the solenoid valve 17C is excited to move the cylinder 18B forward, and the switch 90C is turned off to excite the solenoid valve 17D to move the cylinder 18B backward. The switch 90D is turned on to excite the solenoid valve 17A. Accordingly, the cylinder 18A is moved forward, and the solenoid valve 17B is excited by the OFF setting of the switch 90D to move the cylinder 18A backward.

Reference numeral 91B is an operating device for manually operating the cylinders 27A, 27B connected to the second manifold 24, which is composed of an operating button 89B and two switches 90E, 90F, and the control command device 43 is operated by pressing the operating button 89B.
Transmission of data from the communication line 42 to the communication line 42 is stopped,
The storage device 7 is operated under the operation of the communication controller 80 of the display device 44.
The identification code of the controller 32 stored in 9 is added so that the solenoid valve drive data set by the switches 90E and 90F is converted into a serial signal and transmitted to the communication line 42. In addition, the solenoid valve 26
C is excited, the cylinder 27B moves forward, and the switch 90
The solenoid valve 26D is energized when the switch E is turned off and the cylinder 27B is retracted. The solenoid valve 26A is excited when the switch 90F is turned on and the cylinder 27A is moved forward, and the solenoid valve 26B is turned off when the switch 90F is turned off.
Are excited so that the cylinder 27A retracts.

Reference numeral 91C is an operating device for manually operating the cylinders 36A, 36B, 36C connected to the third manifold 33, and includes an operating button 89C and three switches 90G, 90.
H and 90I, the transmission of data from the control command device 43 to the communication line 42 is stopped by pressing the operation button 89C, and the storage device 79 is operated under the operation of the communication controller 80 of the display device 44. The solenoid valve drive data set by the switches 90G, 90H and 90I is converted into a serial signal by adding the identification code of the controller 41 stored in the communication line 42.
It is provided to be sent to. The solenoid valve 35E is excited by the switch 90G being turned on, and the cylinder 36
C moves forward and the solenoid valve 3 is turned off by setting the switch 90G to OFF.
5F is provided so that the cylinder 36C is retracted, the solenoid valve 35C is excited by setting the switch 90H on, and the cylinder 36B is moved forward, and the solenoid valve 35D is excited by setting the switch 90H off and the cylinder 36B is activated.
Is set so that the solenoid valve 35A is excited by the ON setting of the switch 90I to move the cylinder 36A forward, and the solenoid valve 35B is excited by the switch 90I being set OFF and the cylinder 36A is moved backward.

Next, the operation of this structure will be described. When the solenoid valve drive data is not output from the output card 46 of the programmable controller 45, the cylinders 18A, 18B, 1 connected to the manifolds 1, 24, 33 are connected.
8C, 18D, 27A, 27B, 36A, 36B, 36
C is at the backward end as shown in FIG. From this state, when the solenoid valve drive data for driving the solenoid valve of the first manifold 1 is output from the output card 46, the communication control element 49 included in the control commander 43, based on the output port of the output card 46, The identification code of the control commander 43 and the identification code of the controller 23 of the first manifold 1 to be transmitted are added to the solenoid valve drive data, and this parallel signal is converted into a serial signal and transmitted to the communication line 42.

In the controller 23 of the first manifold 1, the communication control element 55 converts the data into a parallel signal, and the identification code of the control commander 43 included in the data received based on the data stored in the memory 54. And the identification code of the control 23 is compared with the data of the memory 54, and it is judged that the data transmitted from the control commander 43 should be received by itself,
The received solenoid valve drive data is collectively output to the solenoid valve drive circuit 58. Based on this solenoid valve drive data, the solenoid valve provided in the first manifold 1 is driven, and the corresponding cylinder operates. The cylinder is operated by the detection switch 21.
It is detected by A, 21B, 21C and 21D, and is input to the controller 23 via the electric wiring 22. Communication control element 55
Adds the identification code of the controller 23 to the input detection data of the parallel signal, converts it into a serial signal, and transmits it to the communication line 42. The detection data is input to a predetermined input port of the input card 47 under the control of the communication controller 49 of the control commander 43 to start the processing of the next program, and at the same time, the communication control element provided in the display device 44. 80 is input.

The communication control element 80 of the display device 44 is the first
The presence / absence of the identification code of the control commander 43 is identified from the data transmitted from the controller 23 of the manifold 1, and since the identification code of the control commander 43 is not included, the data transmitted from the control commander 43 No, it is judged as the data transmitted from the controller. Then, the identification code of the controller is stored in the storage device 79 based on the data stored in the storage device 79.
It is judged that the data is detected by the first manifold 1 by comparing with the data of No. 1, and 1 is displayed on the 7-segment LED 87A, and the ON / OFF signal of the detected data is output by the light emitting diode 8
Displayed on 8A, 88B, 88C, 88D.

In the manual operation, the operation button of the operation device desired to be manually operated is pressed. For example, when it is desired to manually operate the cylinders 18A, 18B, 18C, 18D connected to the first manifold 1, the operation button 89A is pressed. At this time, the transmission of data from the control command device 43 to the communication line 42 is stopped. Then, under the operation of the communication controller 80 of the display device 44, the identification code of the controller 23 stored in the memory 79 is added to the switch 90A, 90B, 90C, 90.
The solenoid valve drive data set at D is converted into a serial signal and transmitted to the communication line 42. In the controller 23, the communication controller 55
The data is converted into a parallel signal under the operation of
The identification code of the control commander 43 and the identification code of the control 23 included in the data received based on the data stored in 4 are compared with the data in the memory 54, and the control commander 43
It is determined that the data is the data to be received by itself, and the received solenoid valve drive data is collectively output to the solenoid valve drive circuit 58. Based on this solenoid valve drive data, the solenoid valve provided in the first manifold 1 is driven, and the corresponding cylinder operates. The cylinders are operated by the detection switches 21A, 2
It is detected by 1B, 21C, and 21D, and is input to the controller 23 via the electric wiring 22.

The communication control element 80 of the display device 44 is the first
The presence / absence of the identification code of the control commander 43 is identified from the data transmitted from the controller 23 of the manifold 1, and since the identification code of the control commander 43 is not included, the data transmitted from the control commander 43 No, it is judged as the data transmitted from the controller. Then, the identification code of the controller is stored in the storage device 79 based on the data stored in the storage device 79.
It is judged that the data is detected by the first manifold 1 by comparing with the data of No. 1, and 1 is displayed on the 7-segment LED 87A, and the ON / OFF signal of the detected data is output by the light emitting diode 8
Displayed on 8A, 88B, 88C, 88D.

As described above, the process of displaying the operation of the cylinder on the display device can be divided from the control command device 43 and concentrated on the display device 44 provided with the communication control element 80. The operation of can be monitored in real time.

Further, by connecting the display device 44 to the communication line 42, the display device 44 can be placed at a remote place from the control commander 43 and the controllers 23, 32, 41, and the manifold is installed. Even when the machine or device is installed in a narrow place, the cylinder operation can be monitored from a remote place, and the maintenance of the machine or device can be easily performed.

Even when the display device 44 is connected to the controller of the manifold, the communication line 42 and the display device 4 are connected.
4 is connected to the communication line 93, the detection data of the detection switch is input to the display device 44, and the same display processing as described above is performed under the control of the communication controller 80. Therefore, regardless of the number of manifolds installed in the machine or the device, it is possible to monitor the operation of the cylinders attached to each manifold and operating in that manifold.

Further, the display device 44 has operation devices 91A, 91
Since the cylinders B and 91C are provided, the cylinder can be manually operated, so that initial settings such as speed adjustment of the cylinder can be easily performed.

[0041]

As described above, according to the present invention, a controller having a unique identification code for collectively driving the solenoid valves according to the solenoid valve drive data is provided in each of a plurality of manifolds in which solenoid valves are connected in series. , Identification that is sent by serial signal from communication line by inputting the detection data of the detection switch to the controller by providing the detection switch that detects the operation of the fluid actuator to the fluid actuator that operates by the solenoid valve drive data The solenoid valve drive data with the code added is input and converted into a parallel signal, and the detection signal detected by the detection switch is input with the identification code of the controller to which the detection switch is input. The controller is equipped with a bidirectional communication device that converts and transmits, and displays the operation of the fluid actuator based on the detected data. The device is provided separately from each controller and connected to the communication line, and the display device receives the detection data added with the identification code transmitted from the controller as a serial signal from the communication line and converts it into a parallel signal. A communication device is provided, and the manifold corresponding to the identification code of the data transmitted from the controller received by the communication device of the display device and the operation of the fluid actuator based on the detected data are displayed on the display device provided in the display device. By providing such a communication control element in the communication device of the display device, it becomes possible to centralize the processing of displaying the operation of the cylinder on the display device in the display device provided with the communication controller. Cylinder operation can be monitored in real time. Moreover, by connecting the display device to the communication line, it becomes possible to place the display device in a remote place from the controller, and in the case where the machine or device in which the manifold is installed is installed in a narrow space. Also, the operation of the cylinder can be monitored from a remote location, and the maintenance of the machine or device can be easily performed.

The display device is capable of communicating with the communication device, both of which convert a serial signal from a communication line into a parallel signal for input and convert a parallel signal into a serial signal for output to the communication line. In addition, an operating device for setting an identification code and solenoid valve drive data for operating a predetermined fluid actuator is provided, and the solenoid valve drive data with the identification code set by the operating device is converted into a serial signal. By providing transmission to the controller via the communication line, it becomes possible to centrally execute the process of displaying the cylinder operation on the display device on the display device provided with the communication controller. Can be monitored in real time. Moreover, since the cylinder can be manually operated, initial settings such as cylinder speed adjustment can be easily performed.

Further, since the display device is detachably connectable to each controller, the processing for displaying the operation of the cylinder on the display device is concentrated on the display device provided with the communication controller. The operation of the cylinder can be monitored in real time. Moreover, regardless of the number of manifolds installed on the machine or device, the operation of the cylinder operating on that manifold can be monitored for each nihold.

[Brief description of drawings]

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

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

FIG. 3 is an external view showing a part of a solenoid valve control device.

FIG. 4 is an external view of a display device.

FIG. 5 is a block diagram of an electric circuit of a control command device and a display device.

FIG. 6 is a block diagram of an electric circuit of a controller.

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

[Explanation of symbols]

1, 24, 33 Manifolds 17A, 17B, 17C, 17D, 17E, 17F, 1
7G, 17H, 26A, 26B, 26C, 26D, 35
A, 35B, 35C, 35D, 35E, 35F Solenoid valves 18A, 18B, 18C, 18D, 27A, 27B, 3
6A, 36B, 36C fluid actuator 21A, 21B, 21C, 21D, 30A, 30B, 3
9A, 39B, 39C, 39D Detection switch 23, 32, 41 Control device 44 Display device 60, 68, 76, 84 Communication device 80 Communication control element 86 Display device 91A, 91B Operation device

Claims (3)

[Claims] 1. A controller having a unique identification code for collectively driving the solenoid valves according to the solenoid valve drive data is provided in each of the plurality of manifolds in which the solenoid valves are connected, and the solenoid valves are controlled by the solenoid valve drive data. A detection switch for detecting the operation of the fluid actuator is installed in the fluid actuator that is driven and operated, and the detection data of the detection switch is input to the controller, and the solenoid valve drive data with the identification code sent by the serial signal from the communication line is added. Input and convert this to a parallel signal, and at the same time detect the detection data detected by the detection switch and add the identification code of the controller to which this detection switch is input. The controller is equipped with a possible communication device, and a display device that displays the operation of the fluid actuator based on the detected data is provided separately from each controller. The communication device of the display device is equipped with a communication device that receives the detection data with the identification code sent from the controller as a serial signal from the communication line and converts it into a parallel signal. Communication of a display device with a communication control element configured to display a manifold corresponding to the identification code of the data transmitted from the received controller and the operation of the fluid actuator based on the detected data on a display provided on the display device A solenoid valve control device, which is provided in a container. 2. The display device is capable of communicating with the communication device, both of which convert a serial signal from a communication line into a parallel signal for input and convert a parallel signal into a serial signal for output to a communication line. In addition, an operating device for setting an identification code and solenoid valve drive data for operating a predetermined fluid actuator is provided, and the solenoid valve drive data with the identification code set by the operating device is converted into a serial signal. The solenoid valve control device according to claim 1, wherein the solenoid valve control device is provided so as to be capable of transmitting to a controller via a communication line. 3. The electromagnetic valve control device according to claim 1, wherein the display device is detachably connectable to each controller.