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Detecting low voltage on PLC bus

 
How-to & Troubleshooting
Last Post by Duncan 1 year ago
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Posts: 15
 Duncan
Topic starter
Feb 10, 2023 11:36 pm
(@duncan)
Eminent Member
Joined: 2 years ago

Hey guys,

 

Is anyone aware of a way to read low bus voltage on the PLC.

i.e. PLC is still powered, but PLC io blocks have lost voltage?

Obviously I can feed this voltage into an input to see when voltage is removed, but is the a status register somewhere that will accomplish the same thing?

Cheers

Duncan

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Topic Tags
TwinCAT register statuslight
2 Replies
Posts: 1
 ArthurDent
Feb 22, 2023 5:34 am
(@arthurdent)
New Member
Joined: 1 year ago

Hi Duncan,

you could use WcState or State for a general error that will occur when remove voltage.

ArthurDent

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Duncan and twinControls reacted
Posts: 15
 Duncan
Topic starter
Mar 15, 2023 7:05 pm
(@duncan)
Eminent Member
Joined: 2 years ago

Thanks! Yeah, general error would cover my needs. Will look into this!

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Topic Tags:  TwinCAT (13) , register (2) , statuslight (2) ,
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