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Any limitation to using CPU412-3H doing MODBUS/TCP via CP?

5/26/2009 9:57 AM	Rate (0)
David Chia Posts: 2 Rating: (0)	Hello... Is there a limitation for CPU412-3H in using a CP443-1 to connect to Modbus/TCP ? I know it works with CPU414-2H, but I have no experience using it on CPU412-4H. Any advise ?
David Chia Posts: 2 Rating: (0)	Last edited by: David Chia at: 5/26/2009 10:03 AM
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5/26/2009 10:07 AM	Rate (0)
Wüstenräuber Gold Expert Joined: 10/3/2008 Last visit: 10/22/2025 Posts: 996 Rating: (129)	Hello David, yes, CPU412-3H and MODBUS/TCP works as well. Wüstenräuber

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5/26/2009 10:28 AM	Rate (0)
David Chia Posts: 2 Rating: (0)	Is there any documentation on this? As the CPU412-3H is the lowest CPU choice, I am concerned if there may be any limitations.
David Chia Posts: 2 Rating: (0)
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5/26/2009 12:53 PM	Rate (0)
Wüstenräuber Gold Expert Joined: 10/3/2008 Last visit: 10/22/2025 Posts: 996 Rating: (129)	Hi David, have a look at the manual of the CPU. Here you can see that TCP connections are possible. This is the basis of the modbusTCP communication. Also you can see, how many connections your can insert in NetPro . I don't know another document (but the ModbusTCP manual of course). Wüstenräuber

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6/22/2009 9:24 AM	Rate (0)
how come Posts: 382 Rating: (47)	Hi David, Maybe this attach document could give you some help! with regards, how come? Attachment Open Modbus TCP For PLC CPU English.zip (962 Downloads)
how come Posts: 382 Rating: (47)
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