3/29/2012 8:06 AM | |
Joined: 8/18/2009 Last visit: 6/17/2024 Posts: 548 Rating: (33) |
Dear Expert, In our project we have used Modbus to TCP/IP Converter( Modbus devices connectect with RS 485 in loop)with Modbus devices.this modbus devices are connected to CP443-1 through Ethernet switch. Please tell me standard block useful for above network to collect data from modbus devices.also tell me doc. regarding this. I have attached System Confi. of Network. Also one doubt that normally CP341 & CP441 we used Modbus master or slave driver. In CP 443-1 is required driver or not.... AttachmentSystem Configuration.pdf (807 Downloads) |
Last edited by: RAJKIRAN at: 3/29/2012 9:02 AMLast edited by: RAJKIRAN at: 3/29/2012 9:02 AMLast edited by: RAJKIRAN at: 3/29/2012 9:01 AMLast edited by: RAJKIRAN at: 3/29/2012 8:30 AMRajkiran Patil |
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3/29/2012 8:41 AM | |
Joined: 10/7/2005 Last visit: 10/19/2024 Posts: 3024 Rating: (1054)
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Hello RAJKIRAN You say that you have a CP441 which is a serial CP, but based on your description and attachment I'd say you have an Ethernet CP443-1, correct? If so, have a look at the link below which has all the details on a Modbus on TCP/IP block(s) that would suit your purpose. S7 OpenModbus/TCP I hope this helps |
Last edited by: fritz at: 3/29/2012 8:41 AMCheers |
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3/29/2012 9:22 AM | |
Joined: 10/7/2005 Last visit: 10/19/2024 Posts: 3024 Rating: (1054)
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Hello RAJKIRAN there is NO piece of hardware Modbus "dongle" that you need to buy andplug intothe CP443-1 (the CP443-1 does NOT have any provisions in itfor this either). The S7 software Blocks (see S7 OpenModbus/TCP) that you buy are all you need. |
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3/30/2012 11:55 AM | |
Joined: 8/18/2009 Last visit: 6/17/2024 Posts: 548 Rating: (33) |
Dear Expert, In doc. given that in Library (Modbus_TCP_CP ) standard project is given...(attached doc.) but I have open in library there is no such(Modbus_TCP_CP) project(attached doc)....I have Step7 V5.5... so what is missing..... Please tell....
AttachmentModbus.zip (646 Downloads) |
Rajkiran Patil |
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