- If the PLC is connected correctly (serial
connection cable – no null modem cable with serial connection) and
the connection has been configured correct 9600,7,2,even,no)?
- Is the IP address of the PLC configured
correctly (with connection via TCP/IP)? Can the PLC be contacted
via the Web interface or with e.g. ping in the driver
- Did you analyze the error file (up to zenon
version 6.01) or the central log file (version zenon6.20 and