JPS61267131A - Programming device - Google Patents

Abstract

PURPOSE:To obtain a programming device capable of collating automatically by searching the contents of one memory device to be collated, while the identification instruction of the program of the toner memory contents is viewed, retrieving the same identification instruction, coinciding a top address in one block and collating contents by the block from the top. CONSTITUTION:The contents of data stored in a main memory 1 are sequentially read out in the order of stored absolute addresses (0, 1, 2...) by a read controller 2 in accordance with the instruction of an address counter 7. A program block search device 12 compares the values of respective operand parts of the main memory device 1 and a sub-memory device 3. When said device 12 detects the coincidence, it instructs read controllers 2 and 6 to read the contents of data in the block concerned from the main memory device 1 and the sub- memory device 3, and stores provisionarily the data in memories 8 and 9. Their data is supplied to a coincidence detector 10, and the coincidence or dissidence is tested.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a programming device for a programmable controller, and more particularly to a programming device that can verify the contents of a storage device.

[Conventional technology]

FIG. 3 shows a conventional device for comparing the contents of the main memory and the contents of the auxiliary memory in the programming panel of a programmable controller. (1) is the main memory that stores the program, (2) is the read control device that reads the contents from the main memory (1), (8) is the auxiliary storage that stores the data for verification, (4) is the auxiliary storage device (8)
(6) is a temporary storage device that temporarily stores the data read by the auxiliary storage device reading device (4); (6) is the temporary storage device #4;
(6) Control sequential readout and verification. read control device, (γ) is an address counter that indicates the address of the memory to be verified, (s), (o) H temporary storage register;
(to) two temporary storage registers (8).

(9) A coincidence detection device that compares the contents of (9) and detects a coincidence;
11) is a display/recording device that displays and records the results.

Next, the operation of the conventional loading system based on the above configuration will be explained. The relationship between the contents of the main memory (1) and addresses in FIG. 3 is shown in FIG. 4 (A-2). In the same figure (input-2), the main storage device (1) has addresses from address 0 to a,
Data is stored in the order of b, c, fist. Further, the contents of the friend data stored in the auxiliary storage device (8) are read out to the temporary storage device (6) by the reading device (4), and the relationship between the contents of the data at this time and the address is shown in FIG. -1
). In this case, each of the two storage devices ("L (at
indicates the same case. Address counter (
y) Uo increases sequentially as 1, 2, 3, etc. and sends signals to the readout control devices (2) and (6), respectively. The read control devices (z) and (6) read the contents of the address indicated by the address counter (γ) from the main storage device (1) and the temporary storage device (5), and store the read data in the temporary storage register ( s), (o).

A coincidence of the contents stored in these two temporary storage registers (8) and t (9) is detected by a coincidence detection device (to) and outputted to a display/recording device (2). The value specified by the address counter (TE) indicates the entire memory space starting from 0, and if there is a match,
The display/recording device (2) displays and records the mismatch for each address.

Therefore, as in the examples in Figure 4 (A-1) and (A-2),
If all stored addresses and contents match, all matches can be automatically confirmed.

Next, FIG. 4 (B-2') shows a case where the data contents of the main storage device (1) are modified. Compared to the contents of (B-1) stored in the auxiliary storage device (8) and indicating the next data, the contents of the main storage device (B-2) have two words C' and c' added, and!
One word is deleted, and all the contents after address 11 of word l in the conventional contents are shifted by one word.In such a case, in the conventional device shown in Fig. 3, after the address are all inconsistent, and matching is automatically impossible.

[Problem that the invention seeks to solve]

Conventional programming devices are configured as described above, so when there is a change such as adding or deleting a program, the memory contents are rearranged. , even parts that have not been directly changed will be inconsistent, and automatic verification is impossible, and the process must be performed manually, word by word, against the source program, which takes a very long time and requires human intervention. This invention was made in the ninth attempt to solve the problems mentioned above. To provide a programming device that can automatically verify portions that remain unchanged in program block units even if the absolute address changes due to deletion.

[Means for solving problems]

Programming device fI according to this invention! , C. Divide the data stored in a plurality of storage devices into blocks, provide an identification instruction at the start address of this block, and based on the match of this identification instruction, collate the data of the block related to this identification instruction. The configuration is such that the integrated value of an address counter that adds up the data addresses in the block is reset every time the block verification is completed, and data is sequentially verified block by block.

[Effect]

The programming device according to the present invention searches the contents of the other storage device to be compared by looking at the identification instruction of the program of the storage contents of one side, and searches for the same identification instruction.
The first addresses of the blocks are made to match, and the first part of the block is compared. Every time one block is completed, a counter that determines the data address in the block to be matched is reset, and the first part of each block is compared from the beginning.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described based on the drawings. In FIG. 1, the programming device according to this embodiment is
The present invention is constructed by adding a program block search device (2) for identifying the beginning of one block of data and resetting the address counter (γ) to the configuration of the conventional programming device for verifying memory contents. FIG. 2 is a diagram showing the contents of data stored in the storage device. As shown in the figure, the data content is divided into blocks, and each block has an identification command (ΔΔn) (
ΔΔ is the instruction code part, n is the operand part) n=1.2,
3..., and the data content from this identification instruction to the next identification instruction is one block. The operand part of the identification instruction is n=1.2.3 for identifying each block.
...It is configured to memorize numerical values.

The main storage device (1) and the auxiliary storage device (8) also store data in the above format.

Next, the operation of this embodiment based on the above configuration will be explained. First, the contents of the data stored in the main memory (1) are stored as shown in Figure 2 (A-2), and the contents of the address counter (γ) are stored in the order of absolute addresses (Or 1*2...). The data are sequentially read out by the readout control device (2) according to instructions. The read data is subjected to a program block search device (2) which selects an identification instruction provided at the head of the data block and decodes the numerical value of the operand portion of the identification instruction. Furthermore, the data contents stored in the auxiliary storage device (8) are shown in Figure 2 (A-1).
The data is stored as shown in the figure, and the numerical value of the operand part of the identification instruction is decoded in the same way as in the main memory (1).

Furthermore, the program block search device (2) compares the decoded numerical values of each operand part of the main storage device (1) and the auxiliary storage device (8), and detects a match. The program block search device (2) instructs the read control devices (2) and (6) to read the contents of the data block from the main storage device (1) and the auxiliary storage device (8), The data contents in this read block are stored in temporary storage registers (s) and (o). This readout control device (
Simultaneously with the read operation by 2L (6), the address counter (7) adds up the data addresses within one block related to the above read. The accumulation of this address counter (7) will be reset by reading the identification command by the next block, and this operation will be repeated for each block thereafter.
(Each data content in one block stored in a) A match is detected by the match detector (to) and output to the display/recording device (9).Display operation of this display/recording device (9) This allows you to confirm the match and record the results.

In the example shown in FIG. 2 (A-1) I (A-2), the addresses of the data contents stored in the main storage device (1) and the auxiliary storage device (8) respectively match. It shows
Similar results can be obtained with conventional programming devices, but according to the present invention, the contents of one auxiliary storage device (8) can be added, changed, or deleted as shown in FIG. When performing this, the data is rearranged for each block, and collation is performed for each block from the beginning of this block, so if there is no change in the contents within the block, the effect of changes in other blocks will be ignored. This has the effect of allowing verification without being affected.

In addition, although the programmable controller was explained in the above embodiment, a general-purpose calculation controller may also be used, and the same effect as that of the above embodiment can be achieved. The programming device divides the data stored in a plurality of memory storages into blocks, provides an identification command at the first address of this block,
Based on the match of this identification command, the data of the block related to this identification command is verified, and each time the verification of this one block is completed, the integrated value of the address counter that integrates the data addresses in the block is reset, and Since we have adopted a configuration that collates data, even if a part of the data is added or deleted, it is possible to automatically collate the data contents in the block of data that have not been added or deleted.・Play fruit. Furthermore, since no human intervention is required, there are no errors, reducing program debugging time and quickly confirming program changes in the event of an abnormality. effective.

[Brief explanation of drawings]

FIG. 1 is an overall circuit block diagram of a programming device according to an embodiment of the present invention, FIG. 2 is a layout diagram of memory contents in the main storage device of the embodiment device, and FIG. 3 is an overall circuit diagram of a conventional programming device. The block diagram, FIG. 4, shows a diagram corresponding to FIG. 2 in the conventional device. (1) is the main storage device, (2) is the read control device, (8)
is an external auxiliary storage device, (4) is an auxiliary storage reading device, (
5) is a temporary storage device, (6) Fi read control device, (γ
) is an address counter, (8) is a temporary storage register, (
9) is a temporary storage register, αcult match detection device, (
9) is a display recording device, and (2) is a program block search device 0. Note that the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] In a programming device that collates data stored in a plurality of storage devices, the data is divided into a plurality of blocks, an identification instruction for identifying each block is provided at the beginning of the block, and the data is stored in each of the plurality of storage devices. Detect the matching of each identification instruction in each stored data, match the data for each block of the detected identification instructions, and every time the matching of one block is completed, the data address in this block is determined. 1. A programming device characterized in that the integrated value of an address counter for counting is reset, and the data is sequentially collated block by block.