Omron CS1G/H-CPUxxH Instructions Manual page 692

Sysmac cs series; sysmac cj series

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Table Data Processing Instructions

3-17-18 STACK DATA DELETE: SDEL(642)

Ladder Symbol

When CIO 000000 is ON in the following example, SINS(641) inserts the

source data in D00100 at the specified address in the stack starting at

D00000. In this case, the stack pointer indicates D00007 and the offset value

is 3, so the source data is inserted in D00004. The existing data is shifted

down one word and the data in D00007 is overwritten. At the same time the

stack pointer will be incremented from D00007 to D00008.

PLC memory address

of last word in the stack

Stack pointer

PLC memory address

of last word in the stack

Stack pointer

Deletes the data element at the specified location in the stack, outputs that

data to the specified destination word, and shifts the remaining the data in the

stack upward. The offset value indicates the location of the desired data ele-

ment (how many data elements before the current pointer position).

This instruction is supported by the CS1-H, CJ1-H, CJ1M, and CS1D CPU

The stack pointer is incremented

by +1 after the data is inserted.

TB: First stack address

C: Offset value

D: Destination word

Section 3-17

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