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  1. CTP

    Sub routines

    You may want to consider using subroutines to minimise duplication of code. You can call the subroutine multiple time is one scan. Coupled with indirect addressing it can vastly reduce the amount of ladder but be careful it can be a nightmare to debug!
  2. CTP

    Lost password & backup programming

    If the PLC is networked you may want to try sending a message to the status file from another PLC on the network and disable the pass word protection.

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