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11/17/2008 12:36 PM | |
Posts: 30 Rating: (0) |
Hi, I have a question regarding wiring of a SM321 Module (Specifically the module; 6ES7321-1BH02-0AA0). In the 'S7-300 Automation System Module Data' document it shows a example wiring diagram of the module and i don't understand why there are switches shown between the +24V supply and pins 2, 9, 12 and 19. Can anyone explain this please? I will use this module to receive a +24V signal from a relay (SPDT, 110V AC on the coil and 24V DC on contacts to feed SM321 Card, so if someone could describe how to wire this i would appreciate it. I've attached a rough sketch of how i think it should be connected, can someone fill in the blanks please? http://i36.tinypic.com/mv4t90.jpg Regards, Ross |
Last edited by: Ross_A at: 11/17/2008 1:15 PMDiagram Added |
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11/17/2008 3:02 PM | |
Posts: 30 Rating: (0) |
That's perfect. Thank you for the reply. |
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