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English Translations » 历史存档[信息] » Sequence for powering on and off when replacing cards in the

Sequence for powering on and off when replacing cards in the S7-300

2016-03-07View Original

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Our company needs to replace one D0 card and 4 drives; they all share one PLC (connected through expansion cards). The PLC is located on Drive 1, while the cards that need to be replaced are on Drive 2. Could you please tell me the sequence for turning off and on the PLC? Thank you!
Reply #22016-03-07
The power is out; there’s no need to worry about the order.
Reply #32016-03-07
What about when power is supplied? Is there a sequence?
Reply #42016-03-08
During a power outage, isolate the components first and then restore power; during power restoration, restore power to the main system first and then to the individual components

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Translated at 2026-07-21 00:45:02

Original: https://bbs.hcbbs.com/thread-1565119-1-1.html

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