User Guide
FX1S Series Programmable Controllers Table of Contents
vii
7. Diagnostics..........................................................................................7-1
7.1 Preliminary Checks..........................................................................................7-1
7.1.1 ERROR LED ON (CPU ERROR)........................................................................7-2
7.2 Common errors................................................................................................ 7-3
7.3 Maintenance .................................................................................................... 7-3
7.4 Operation and Error Flags ...............................................................................7-4
7.5 Error Registers.................................................................................................7-5
7.6 Error Codes......................................................................................................7-7
7.7 Instruction List..................................................................................................7-8
7.8 Device List .....................................................................................................7-11










