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7 APPLICATION INSTRUCTIONS
7.6 Structure Creation Instructions
• Operation of XCALL instruction varies according to the CPU module type. The following program example shows the
operation of XCALL instruction for each CPU module.
[Program example]
[ON/OFF timing of X0]
*1 Time during X0 is ON () does not include the time when turning X0 ON ().
Component Operation of XCALL instruction
• Process CPU (serial No. of first five digits: 07031 or earlier)
• High performance model QCPU (serial No. of first five digits: 06081
or earlier)
When X0 is turned ON: Without process (Do not execute subroutine program of
"P1".)
During X0 is ON: Execute subroutine program of "P1".
When X0 is turned OFF: Perform "Non-execution processing" of subroutine
program of "P1".
• High performance model QCPU (serial No. of first five digits: 06082
or later)
• Process CPU (serial No. of first five digits: 07032 or later)
Using SM734 (XCALL instruction executing condition designation) to select
operation when X0 is turned ON.
• When SM734 is OFF: Without process (Do not execute subroutine program of
"P1".)
• When SM734 is ON: Execute subroutine program of "P1".
During X0 is ON: Execute subroutine program of "P1".
When X0 is turned OFF: Perform "Non-execution processing" of subroutine
program of "P1".
• Redundant CPU
• Basic model QCPU
• Universal model QCPU
•LCPU
When X0 is turned ON: Execute subroutine program of "P1".
During X0 is ON: Execute subroutine program of "P1".
When X0 is turned OFF: Perform "Non-execution processing" of subroutine
program of "P1".
P1 subroutine program
Subroutine program (P1)
call by XCALL instruction
X0
OFF
ON
ÔÓÒ
Turning X0 ON
(OFF→ON)
Turning X0 OFF
(ON→OFF)
During X0 is ON
*1
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