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S7 1200 I/O modules - DIAG led blink a green light

Created by: Import-User-1 at: 5/4/2010 10:27 AM (1 Replies)

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5/4/2010 10:27 AM	Rate (0)
Import-User-1 Posts: 3609 Rating: (29)	Import of a Technical Question of an User E.Santos Hi, I have already used a S71200 with modules connected without any kind ofpowering problems, but for this time something odd happens. The Modulespower pins as well as the gnd pins are wired but all the DIAG ledblink a green light. I've already tryed either PLC and external power suply with no responseboth ways. I tryed to conect one module at a time (HW and SW), but they keep on blinking, and even with no power at all they blink too. Any sugestions?
Import-User-1 Posts: 3609 Rating: (29)
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5/10/2010 5:38 PM	Rate (0)
Denilson Pegaia Platinum Expert Joined: 9/23/2005 Last visit: 11/12/2024 Posts: 4352 Rating: (1452)	Hi, take a look at the CPU diagnostic buffer.
	Denilson Pegaia Siemens Industry Sector Technical Support
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