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Messages - shahid

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Technical support / Programming to PLC
« on: September 29, 2019, 08:26:06 AM »
I am new to PLC programming. I had some old PLCs lying around in our lab and i wanted to learn to program using these PLCs. Now the problem i am facing is in loading program or trying to connect to PLC. Whenever i try to connect to PLC it asks for a password which no one here knows as these have not been used for some time now. I went through some old threads relating this problem. And i tried sending command IR* but it replies with PWER* instead of IR01* or something like that. Can you tell me the problem or what can i do to solve this issue?

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