4/20/2018 11:00 AM | |
Joined: 3/24/2018 Last visit: 5/5/2024 Posts: 236 Rating:
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1-Is it possible to replace P.S with another different type with out changing H.W in the program? 2-How the P.S supply the PLC with power if It has no connection to the backplane-bus? ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 4/20/2018 11:46:51 AMNew subject after splitting |
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4/20/2018 11:13 AM | |
Joined: 5/12/2006 Last visit: 9/3/2024 Posts: 22352 Rating:
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Hello, what is not clear for you? Chgristoph |
4/20/2018 11:16 AM | |
Joined: 3/24/2018 Last visit: 5/5/2024 Posts: 236 Rating:
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How the P.S internat power to PLC? The PLC is not powered over the Backplane |
4/20/2018 11:23 AM | |
Joined: 5/12/2006 Last visit: 9/3/2024 Posts: 22352 Rating:
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Hello, the named Powersupply is connected to the frontconnector of the PLC(24V) (see the PLC Manual how to do this (https://support.industry.siemens.com/cs/ww/en/view/15390415) If the PLC is powered on then the power for the Backplane interface of the PLC is generated from this 24v internal in the PLC (voltage Converter in the PLC Hardware). Regards Christoph |
4/20/2018 11:31 AM | |
Joined: 3/24/2018 Last visit: 5/5/2024 Posts: 236 Rating:
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I understand that P.S supply power to CPU and CPU supply power to PLC through backplane right? |
4/20/2018 12:25 PM | |
Joined: 3/5/2014 Last visit: 8/5/2022 Posts: 5521 Rating:
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hi, maybe this also helps: SIMATIC S7-300 CPU 31xC and CPU 31x: Installation see chapter 6.4, wiring the power supply module and the CPU: here you see the only connection between PS and CPU. regards, |
FCK WAR! |
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