Using the Reset, Clear, and Clear All PLC Commands

Reset PLC will reboot the XEM CPU. When the XEM CPU is finished rebooting, it will delete error/warning information to allow boot up.

Error/warning condition may occur again if it wasn’t solved before Reset PLC was performed.

Reset PLC will reboot the XEM CPU. When the XEM CPU is rebooted, it will delete these items to allow boot up:

• Error/warning information

• Latch 1 area

• I/O skip

• Error mask

• Forced I/O setting area

Error/warning condition may occur again if it wasn’t solved before Reset PLC was performed.

Clear PLC is used to delete selected items from the connected XEM CPU. CPU must be in STOP mode to perform this command. User can delete these areas of the CPU:

• PLC Configuration è Parameter

• PLC Configuration è Program

• Network Parameter

• Memory locations %AB, %IB, %QB, %MB, %RB, %WB, %KB, %LB, and %UB

Warning: Clearing PLC Configuration è Parameter will erase Basic Parameter, I/O Parameter and Internal Parameter, but doesn’t include the Ethernet port setting including the IP address setting. Clearing PLC Configuration may block connection over Ethernet. User may have to acknowledge messages in XG5000 by connecting over USB.

Warning: Clearing PLC Configuration è Program will erase all Scan Programs.

Clear ALL PLC is used to delete everything from the XEM CPU.

Warning: Clear ALL PLC deletes parameters, data and passwords.

Warning: Clear ALL PLC will delete PLC IP address settings. IP Address is set to 0.0.0.0. Requires connecting over USB to set the IP address again.

Warning: Clear All PLC will erase all Scan Programs.