CTH200 Series PLC User Manual
Too many hidden program segments (HIDE instructions)
Attempt to switch to Freeport mode while in a user interrupt
Illegal index (string operation in which a starting position value of
0 is specified)
Scan watchdog time-out error
Compare contact indirect addressing error
Compare contact illegal floating point value
Program is not understood by this S7-200
Compare contact range error
Log once for each scanning cycle
Diagnose events
Refer to table 8-2
Module time-out with no response
Module waiting flag is time-out
Module configuration error
Module not support this instruction