Precautions For Dedicated Instructions; Precautions For Link Dedicated Instructions - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

Precautions for dedicated instructions

This section describes precautions when using dedicated instructions.
Precautions for dedicated instructions (common)
■When changing data specified by dedicated instructions
Do not change any data (such as control data) until execution of the dedicated instruction is completed.
■When the dedicated instruction is not completed
Check whether "Module Operation Mode" in "Application Settings" of the RJ71EN71 and the RnENCPU (network part) is
"Online".
A dedicated instruction cannot be executed when the mode is "Offline" or "Module Communication Test".

Precautions for link dedicated instructions

The following describes precautions when executing multiple link dedicated instructions simultaneously.
■Channel of the link dedicated instructions
When executing multiple link dedicated instructions simultaneously, check that the channels for the instructions are not
duplicated. Link dedicated instructions with the same channel cannot be executed simultaneously. To use the same channel
for multiple link dedicated instructions, configure an interlock so that a instruction is executed after completion of another.
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APPX
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Appendix 4 Dedicated Instruction