567
3. Instructions
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Table Data Processing Instructions
3
SREAD
Example Programming
When CIO 0.00 is ON in the following example, SREAD(639) reads the data in the specified word in the
stack starting at D0 and outputs the data to D100. In this case, the stack pointer indicates D7 and the
offset value is 3, so the data is read from D4.
SREAD
D0
&3
D100
0.00
A
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
A
D100 A
−3
PLC memory
address
Stack pointer
Last word
in stack
Stack
pointer
Stack pointer
Last word
in stack
PLC memory address of
last word in the stack
The stack pointer position remains
unchanged after the data is read.
PLC memory address
of last word in the stack
Stack
pointer
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