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9.13 J(P).ZNWR
9
DEDICATED INSTRUCTIONS
(c) Program example
The following example program is written to the CPU module of station No.2.
1) When the target station is not on a redundant system
2) When the target station is on a redundant system
Confirm that the target station is on the control system, and execute the ZNWR
instruction.
Figure 9.108 Program example
Figure 9.109 Program example
Stores write data
in D750 to D753.
Execution of ZNWR
instruction
Error code reading,
etc.
Processing program for write completion
Processing program for normal completion
Processing program for error completion
Processing program for write completion
Processing program for normal completion
Processing program for error completion
Stores write data
in D750 to D753.
Error code reading,
etc.
For execution of ZNWR instruction, provide an interlock using Redundant system
status (3) (SW01F0 to SW01F7) to ensure the target station is control system.
Execution of ZNWR
instruction
(when station No.3
is control system)
Execution of ZNWR
instruction
(when station No.4
is control system)
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