adccommunitymod (AutomationDirect) asked a question.
GND and Logic GND on DL05
Created Date: September 13,2013
Created By: Ryan_Poethke
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I 've just realized I 've never run into this before: I have a battery-powered application for a DL-05 and as such, there's no place to tie GND and Logic GND to. I 've often left them disconnected while testing on the bench (with no ill effect), but never in an actual piece of equipment. Is there any harm in leaving them unconnected (but connected to each other with the factory-supplied jumper) since this is a battery powered device? Thanks! -rpoet
Created Date: September 15,2013
Created by: Herman
FWIW, l don't know about the DL05 but in the Click PLCs, 'logic ground ' is tied to 0VDC. Whereas 'ground ' = the ground supplied by the AC outlet. And there is no connection between 0VDC and 'ground '.
With any multimeter, you could see if that is also the case for the DL05.
If so, I would tie the battery's 0VDC to 'logic ground ', and make no connection to 'ground '.
Created Date: September 16,2013
Created by: Ryan_Poethke
I have an '06 on my bench right now, and according to my multimeter, there's no connection between GND/L-GND and 0v. I'll try tying it to the 0v of the 24vdc power supply I guess. Like I said before, I 've never noticed a problem with operation when I 've had '05's and '06's on my desk for testing.
-rpoet
Created Date: September 13,2013
Created by: Ryan_Poethke
I 've just realized I 've never run into this before:
I have a battery-powered application for a DL-05 and as such, there's no place to tie GND and Logic GND to. I 've often left them disconnected while testing on the bench (with no ill effect), but never in an actual piece of equipment.
Is there any harm in leaving them unconnected (but connected to each other with the factory-supplied jumper) since this is a battery powered device?
Thanks!
-rpoet