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How do I connect a 2-wire transmitter (for 4-20mA) on a C7-635 TP?

6/18/2008 8:51 AM	Rate (0)
ClaPet Posts: 26 Rating: (0)	Hi My customer has a C7-635 TP. He wants to connect 2-wire transmitter to a C7-635 TP. The connectors available are: AIx-U = Voltage input AIx-I = Curent input AIx-C = Reference potential MANA = Analogue ground where x = 0, 1, 2, 3 In the manual for the C7-635 it only states that it is possible. I would appreciate your help. Thanks Peter
ClaPet Posts: 26 Rating: (0)
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6/18/2008 9:34 AM	Rate (0)
Wizard Diamond Expert Joined: 4/24/2006 Last visit: 7/31/2025 Posts: 9027 Rating: (1199)	Dear Peter, Please have a look at this faq: http://support.automation.siemens.com/WW/view/en/18475312 Perhaps it's useful Best regards, Wizard

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6/18/2008 10:09 AM	Rate (0)
ClaPet Posts: 26 Rating: (0)	Dear Wizard, Thank you for your help. Unfortunately, there is no M+ and M-, there is only AIx-U (voltage), AIx-I (current), AIx-C (Reference potential) and MANA.. Ithink that the one wire must go to AIx-C and the other to AIx-I, but I do not want to damage the C7 or the transmitter. Regards Peter
ClaPet Posts: 26 Rating: (0)
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6/18/2008 10:33 AM	Rate (0)
Wizard Diamond Expert Joined: 4/24/2006 Last visit: 7/31/2025 Posts: 9027 Rating: (1199)	Hi Peter, AIx-I will be M+ and AIx-C will be M- Best regards, Wizard

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6/18/2008 1:18 PM	Rate (0)
ClaPet Posts: 26 Rating: (0)	Thanks, Peter Claus
ClaPet Posts: 26 Rating: (0)
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6/18/2008 1:28 PM	Rate (0)
Wizard Diamond Expert Joined: 4/24/2006 Last visit: 7/31/2025 Posts: 9027 Rating: (1199)	You are welcome Best regards, Wizard

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