Mitsubishi MELSEC-A series Programming Manual

7. APPLICATION INSTRUCTIONS
7 − 129
MELSEC-A
List of Error Code Numbers (Error codes are stored by BCD.)
Error Code Numbers for the CHK Instruction
Execution The CHK instruction is executed every scan regardless of ON/OFF status of check
Conditions condition contact points.
POINT
The CHK instruction cannot be written and modified during PC CPU RUN.
Order of
contact points
High
Priority
Low
High
Priority
Low
Error code numbers

Mitsubishi MELSEC-A series Specifications

General

Brand	Mitsubishi
Model	MELSEC-A series
Category	Controller
Language	English