Omron SYSMAC CS Series Instruction & Reference Manual page 653
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Also See for SYSMAC CS Series:
- Operation manual (841 pages) ,
- Programming manual (303 pages) ,
- Quick start manual (4 pages)
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Precautions
The regular SUBROUTINE CALL instruction, SBS(091), cannot call a global subroutine region
(GSBN(751) to GRET(752)).
GSBS(750) will not be executed when it is within a program section interlocked by IL(002) and
ILC(003), so interlocks are not allowed within global subroutine regions.
• Observe the following precautions when using differentiated instructions (UP, DOWN, DIFU(013),
DIFD(014), or up/down differentiated instructions) in subroutines.
The operation of differentiated instructions in a global subroutine is unpredictable if a subroutine is
executed more than once in the same cycle. In the following example, global subroutine 1 is exe-
cuted when CIO 0.00 is ON and CIO 1.00 is turned ON by DIFU(013) when CIO 0.01 has gone
from OFF to ON. If CIO 0.01 is ON in the same cycle, global subroutine 1 will be executed again but
this time DIFU(013) will not detect the rising edge of CIO 0.01 and CIO 1.00 will be turned OFF.
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Cyclic task 1
0.00
GSBS
1
Cyclic task 2
0.01
GSBS
1
Interrupt task 0
GSBN
1
0.01
DIFU
100
GRET
3. Instructions
Executed
again
3
619
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