ERR LED keeps ON, PLC don not run and output, check
when power on
Expansion module
communication
error
Internal code check wrong
Implement code or configuration table check wrong
ERR LED keeps ON, PLC don not run and output, check
when power on
Can not erase or write Flash
Offset exceeds soft element range
Reset when power on or users can also reset by hand.
When offset of register overflows, the return value will be
SM372 value
SM396 will be ON when block97is running
SM397 will be ON when block98 is
running
SM398 will be ON when block99 is
running
SM399 will be ON when block100 is
running
Extension module ID not match
BD/ED module ID not match
Extension module communication overtime
BD/ED module communication overtime
Error Message(SM450-SM463)