Instruction Manual

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AN-T80020 Diagnostics Procedure

Issue 12 Feb 11 AN-T80020 8

Select Debug | Debug. A long thin window entitled IEC1131 TOOLSET – (application) – Debugger

should appear. This will have a bold black line of text giving the state of the application. This window is

called the Debugger window and it is the key to all online controls. To disconnect from the system,

close this window and all other online windows will also close.

If the black line of text says RUN, you are connected to the system. Go on to the next page.

If the black line of text does not say RUN, and the system is clearly running (flashing ‘Run’ LED on the

processor), then there is likely to be a communications problem.

Using a serial port, you will see ‘Disconnected’. Check that the keyswitch is set to Maintain and the

maintenance cable is connected. Then try to connect again. Using Ethernet, the online session will

abort with the message ‘Cannot install the communication’. You will need to close down all Toolset

windows to reset this error.

Check the keyswitch position. Check that the Ethernet network is connected by sending a ‘ping’

command to the communications interface port using the following command (with the appropriate IP

address) in a command window. Then try to connect again.