JPH03224002A - Programmable controller system - Google Patents

Abstract

PURPOSE:To simplify and to speed up input operation by partly saving and restoring the contact information from a data memory. CONSTITUTION:A contact to be saved is selectively designated via an input means 1,001 of a programming device 1,000. Based on this designation, a programmabale controller 2,000 reads the designated contact information out of a data memory 2,002 by a reading means 2,003 and sends it to a programming device. At the same time, the contact information stored in the programming device is received by the controller 2,000 and then written into the memory 2,002 via a writing means 2,005. Thus, it is not required to save and restore all contact information. Then only the optional and desired contact information is saved and restored.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a programmable controller system, and more particularly, a programmable controller system that displays and stores operating states of contacts defined in a sequence program using a programming device.
Regarding a programmable controller system.

[Prior Art] Conventionally, a programmable controller is connected to a programming device 102 through a transmission line 103 as shown in FIG. 7, and inputs and executes a sequence program created in the programming device 102. In addition, the programmable controller 101 executes a sequence program to automatically control equipment (not shown) that is to be automatically controlled.
After reading out the information on the contacts into a data memory within the device and performing sequence calculations, the conduction state (on/off) of the contacts is instructed based on the results of the calculations.

Recent programming devices can create the above-mentioned sequence program in the form of a sequence circuit diagram. Further, this sequence circuit diagram is displayed on the display surface 104,
It has become possible to display the current contact status (referred to as blasphemy information) as well as to save and store the contact information on a floppy disk.

[Problems to be Solved by the Invention] However, in the conventional device, in order to receive contact information from a programmable controller in correspondence with a sequence circuit diagram, the contact and ψ information that is saved and stored is not stored in the sequence circuit diagram (sequence program). This is all contact information specified in .

For this reason, it is not possible to specify a specific area for evacuation, and as a result, when the user wants to know contact information, the conventional device has the problem that it takes time to display it.

Therefore, a first object of the present invention is to provide a programmable controller system that can save any desired scoring information.

A second object of the present invention is to provide a programmable controller system that can restore any desired contact conduction state to a data memory.

[Means for Solving the Problems] In order to achieve such an object, the present invention reads the conduction state of the contacts of a device to be controlled by a programmable controller, and temporarily stores it in a data memory in the programmable controller as contact information. A programmable controller system capable of storing the temporarily stored contact information to a programming device, and saving and storing the transferred contact information in a removable auxiliary storage device in the programming device. , the programmable controller has an input means for inputting designation information for selectively designating contact information to be saved in save memory, and a transmission means for transmitting the input designation information to the programmable controller, and the programmable The controller includes a receiving means for receiving the designated information, a reading means for reading contact information indicated by the received designated information from the data memory, and a programming device for saving and storing the read contact information. and a second transmitting means for transmitting the contact point information saved in the auxiliary storage device to the specified information in response to an instruction from the input means. The programmable controller further includes writing means for writing the received contact information into the data memory based on the designation information received by the receiving means. It is characterized by:

[Operation] In the present invention, contacts to be saved are selectively designated from the input means of the programming device, and based on this designation, the programmable controller reads the designated contact information from the data memory by the reading means, and the programmable controller reads out the designated contact information from the data memory using the reading means. Send. Further, the programmable controller receives the selected contact information saved in the programming device, and writes this contact information into the data memory by the writing means. Therefore, it is not necessary to save and restore all contact information as in the past (it is possible to save and restore only desired contact information).

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows the basic configuration of an embodiment of the present invention.

In the circuit shown in FIG. 1, a programmable controller 2000 reads the conduction state of a contact of a device to be controlled, temporarily stores it as contact information in a data memory 2002 in the programmable controller, and then transfers the temporarily stored contact information to a programming device. 1000, and the programmable controller system is capable of saving and storing the transferred contact information in a removable auxiliary storage device in the programming device.

In FIG. 1, the programming device includes an input means 1001 for inputting designation information for selectively designating target contact information to be saved in the save memory, and a transmission means 1002 for transmitting the input designation information to the programmable controller. .

The programmable controller includes a receiving unit 2001 that receives the specified information, and a reading unit 2 that reads contact information indicated by the received specified information from the data memory.
003, and a second transmitting means 200 for transmitting the read contact information to the programming device for backup storage.
4.

Further, the transmitting means of the programming device is capable of transmitting the contact information saved in the auxiliary storage device together with the designation information to the receiving means of the programmable controller in accordance with an instruction from the input means, and The programmable controller further includes writing means 2005 for writing the received contact information into the data memory based on the designation information received by the means.

FIG. 2 shows a specific circuit configuration of an embodiment of the present invention.

In FIG. 2, in the programming device 10, the following components are commonly connected to a bus. That is, central processing unit (CPU)1. Read-only memory for system (ROM for system)2. Random access memory for user program (RAM for user program)
3. Work RAM4. Keyboard input device 51 display 6. Floppy disk storage device (FDD) 7. An input/output interface (Ilo) 8 is connected to the bus.

The CPU controls the overall control of the programming device 10, and also creates and edits a sequence program, transfers the sequence program to the programmable controller, and displays contact information in accordance with operation commands input from the keyboard input device 5. and saves and stores contact information on a floppy disk.

The system ROM 2 stores in advance a control program executed by CPIJI.

The user program RAM 3 is used for the purpose of temporarily storing created programs and transferring created sequence programs.

The work RAM 4 temporarily stores input/output information for arithmetic processing of C:PLll. Specifically, information received from the programmable controller 20, input information from the keyboard input device 5, sequence command information for sequence program editing processing, etc. are temporarily stored.

The keyboard input device 5 inputs operation instructions for the CPUI in addition to the sequence program to be created.

The display device 6 displays information on the created program, contacts of devices automatically controlled by the programmable controller, etc. based on operation instructions from the CPUI.

The FDD 7 stores the contact information at the time specified by the user for preservation purposes.

Ilo 8 transfers information between programmable controller 20 and programming device IO.

In the programmable controller 20, CPIJII
.

Bit operation processor (BP)12. User program RAM 13, data memory 14. Ilo 15 is bus connected.

The sequence program created in the programming device 10 is stored in the user program RAM 13 via the l1015 under the operation control of the CPU II. C
PUII and BP12 are user program RAM1
The third sequence program is divided and executed to control the operation of the equipment to be controlled.

For this operation control, conduction (
The on/off) state is periodically stored in the data memory 14, and the conduction state of the contact to be set is also stored in the data memory 1.
4 is stored.

The operation of this embodiment in such a configuration is shown in FIG. 3(A).
, (B) will be described next.

In FIG. 2, when the user inputs a command for evacuation storage from the keyboard input device 5, the CPU detects the input of the command and executes the control procedure shown in FIG. 3 (A>).

That is, the user then presses the keyboard input device 5.
The identification name (referred to as an identifier) of the contact to be saved and the contact number indicating the range (referred to as a contact address) inputted from the contact point to be saved are accepted (step SO in FIG. 3(A)). At this time,
A keyboard input device 5 operates as an input means.

Next, the CPUI displays the input range information on the display 6 as shown in FIG. Further, the evacuation command and range information are transmitted to the programmable controller 20 (step S1→52-53 in FIG. 3(A)). At this time, cpυ1 and l108 operate as transmitting means.

On the other hand, on the programmable controller 20 side, 1708
In response to receiving the information, steps F1 to F1 in FIG. 3(A) are performed.
Execute the FIO control procedure. That is, the CPU 11 identifies that the received information is an evacuation storage (load) command, and reads contact information from the data memory based on the range information indicated by this command. Specifically, the contact information to be saved is read by converting the range information into a read address of the data memory. At this time, the CPU II operates as a reading means. This read contact information is sent to the programming device 10 (F1 to F4 in FIG. 3(A))
. At this time, CPU II and Ilo 15 operate as second transmitting means.

The CPU on the programming device 10 side displays the received contact information and also displays the FD in correspondence with the above range information.
The contact information is stored in the floppy disk by D7 (step S4 in FIG. 3(A)).

Thereafter, the above-described procedure is repeated, and the range information input for each identifier and the corresponding contact information are saved from the data memory 14 of the programmable controller 20 to the FDD 7 of the programming device 10, as shown in FIG.

Next, the specific contact information saved on the floppy disk is stored in the data memory 1 of the programmable controller 20.
4 will be explained with reference to the flowchart of FIG. 3(B).

When the user issues an instruction to restore contact information from the keyboard input device 5, the CPU on the programming device 10
In response to this instruction, the FDD 7 transfers the contact information to be restored and its range information from the floppy disk to the work RAMJ (step 51 in FIG. 3(B)).
1).

At this time, the CPUI causes the display 6 to display read range information and contact point information.

Note that the contents of the contact information may be changed as necessary. In this case, it is preferable to use a sequence instruction creation processing function.

Next, the read contact information and range information are sent from the programmable controller 10 to the programmable controller 20 along with a restoration command according to instructions from the CPUI (
Step 512 of FIG. 3(B)).

The CPU 1 of the programmable controller 20 writes transfer information to the storage address of the data memory 14 corresponding to the range information in response to the command to restore the received data (step F11 in FIG. 3 CB).

By performing such processing, it becomes possible to newly implement the following functions in the programmable controller system.

(11) Conventionally, it was necessary to initialize all the contacts on the data memory for system test runs and confirmation runs at the time of failure recovery, but by using this embodiment, any desired contacts can be set. The conduction state can be initialized. In this case, the contact information read from the floppy disk is rewritten into the desired conduction state on the work RAM 4, and then transmitted to the programmable controller.

(2) In this embodiment, range information is input directly from the keyboard input device 5, but combinations of contact information to be used are patterned as range information in correspondence with the type of test run of the system. This pattern is stored in a floppy disk as shown in FIG. 6, and this pattern is selectively inputted from the keyboard input device 5, and the selected pattern information is used for saving and restoring contact information. The range information input process can be simplified.

[Effects of the Invention] As explained above, according to the present invention, it is possible to partially save and restore contact information from the data memory, so it is possible to perform a partial trial run of the device to be controlled. and can monitor any desired contact information. As a result, compared to the conventional method of saving and restoring all contact information, the user's input operations are simplified.
This has the effect of speeding up the process.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the basic configuration of an embodiment of the present invention, Fig. 2 is a block diagram showing a circuit configuration of an embodiment of the present invention, and Figs. 3 (A) and (B) are operating procedures of the embodiment of the present invention. FIG. 4 is a flowchart showing a display example of the embodiment of the present invention; FIG. 5 is an explanatory diagram showing the content of contact information of the embodiment of the present invention; FIG. 6 is an example of range information of the embodiment of the present invention. FIG. 7 is a perspective view showing a conventional system configuration. 10, 102... programming device, 20, 101
...Programmable controller, CPUI, 11.
...Central processing unit, 5...Keyboard input device, 6...Display device, 14...Data memory. , Book, Flowchart of Example 3 (B) & Display of Invention Examples Figure 5

Claims (1)

[Claims] 1) A programmable controller reads the conduction state of a contact of a device to be controlled, and temporarily stores it as contact information in a data memory within the programmable controller;
A programmable controller system capable of transferring the temporarily stored contact information to a programming device and storing the transferred contact information in a removable auxiliary storage device in the programming device, the programmable controller system comprising: The controller includes: input means for inputting designation information for selectively designating contact information to be saved in save memory; and transmission means for transmitting the input designation information to the programmable controller, and the programmable controller includes: receiving means for receiving the specified information; reading means for reading out contact information indicated by the received specified information from the data memory; and second means for transmitting the read contact information to the programming device for saving. A programmable controller system comprising a transmitting means. 2) The transmitting means of the programming device is capable of transmitting the contact information saved in the auxiliary storage device together with the designation information to the receiving means of the programmable controller in response to an instruction from the input means, and 2. The programmable controller system according to claim 1, wherein the programmable controller further comprises writing means for writing the received contact information into the data memory based on the designation information received by the means.