If the user program uses all the COMs serial lines of the SlimLine CPU module, the modbus RTU server available on them it’s stopped, and obviously the LogicLab cannot connect to it. To solve the problem, you must delete the program loaded on the CPU module, to do this you have to use the Toolly utility.
With the CPU module switched off, connect the COM0 serial port of the module with a PC COM port using the programming cable (CBL054*000 and CBL057**00).
Execute Toolly, and activate the SlimLine CPU Catch procedure (See screenshot). Select the COM port of the PC on which is connected the SlimLine. By pressing the Catch button, on the screen will appear a message like:
Please follow these instructions:
1) Switch OFF the device
2) Switch ON the device
Switch on the CPU Module, after a short time on the Toolly screen, the message Device catched! will be displayed.
Open the Toolly terminal emulation procedure. Select the COM port of the PC on which is connected the SlimLine. Now it’s possible to login to the CPU module, press Enter on the terminal screen, the login prompt will appear (The default credentials for the Administrator are Login:Admin Password:Admin).
When are you logged in, use the PLCCommand -pc command to completely delete the user program (See screenshot). For a complete list of available commands please refer to the SlimLine CPU’s Telnet commands reference manual.
Now you can restart the SlimLine CPU module and connect to it the LogicLab program.
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