2/25/2011 5:27 AM | |
Joined: 8/18/2009 Last visit: 8/7/2023 Posts: 537 Rating:
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Thanks jklm, Thanks for your reply, please tell me manual where I can view this thing. |
Rajkiran Patil |
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2/26/2011 2:26 AM | |
Joined: 9/27/2006 Last visit: 12/8/2023 Posts: 12188 Rating:
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Hello Way; All Siemens modules have a coding key mechanism, to my knowledge. Here is an extract from the S7-400 Hardware and Installation manual that briefly describes this mechanism and the reasons for it: 4.20 Fitting the Front Connector Principle of a Coding Key To reduce the risk of a wired front connector being plugged into the wrong type of module after rewiring or module replacement, the signal modules have a coding key for front connectors. A coding key comprises two parts: one part is permanently connected to the module; the second part is still connected to the first part when delivered. When you plug in a front connector, the second part of the coding key engages in the connector, becoming detached from the part connected to the signal module. Both parts of the coding key are mating elements and a front connector with the wrong mating element cannot be plugged into this signal module. http://support.automation.siemens.com/WW/view/en/1117849 Hope this helps, Daniel Chartier |
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11/9/2016 1:55 PM | |
Joined: 8/21/2014 Last visit: 12/7/2023 Posts: 770 Rating:
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New question published by ktmz@mm is split to a separate thread with the subject Turn modules keying. Best regards |
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