adccommunitymod (AutomationDirect) asked a question.
Analog out problem
Created Date: February 14,2011
Created By: keklon
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Hello. I set up my F0-2AD2DA-2 in my DL06 with the 4 jumpers set for 10VDC .I used an IBox 400 in my ladder to format it for 2 input and 2output channels in slot 1 with data format to BCD. I an selecting V2010 with the pointer method. When I have conditional contacts load a value of 1175 into V2010 I get -5.4v out at the analog out. 2150 gives me -4v and 2869 gives me -3.5v. If 0-4095 is should give me 0=10V what am I missing?
Created Date: February 14,2011
Created by: keklon
analog out
I apologize for the typos. What I am trying to ask is. How do I get a 0-10VDC out of my analog module using comparative contacts?
Created Date: February 14,2011
Created by: bcarlton
I'm wondering where you are measuring to get a negative voltage?
If the module is set up properly you could just use a data table to test the output. Once that is correct then you can worry about writing the logic. I'm not sure what comparative contacts have to do with it but it's your program.
Created Date: February 14,2011
Created by: bcarlton
Please note exactly how you have the module wired.
Created Date: February 14,2011
Created by: keklon
I have discovered that the analog out turns negative only when the GS2 is running. I will try to separate the commons. Any thoughts?
Created Date: February 14,2011
Created by: keklon
I have the analog out connected to my DVOM . The 24VDC is a 15W power supply connected to the DL06 and the F0-2AD2DA-2.
Created Date: February 14,2011
Created by: bcarlton
Please post a diagram of exactly how you have the analog module and the GS2 wired. Indicate where you measure the voltages you mention. A lot of guessing is being done here.
And you have spread your questions out over so many threads it is difficult to tell where you are at with this project.
Created Date: February 14,2011
Created by: keklon
Working at last
I finally was able to get good results. My analog out shielded cable must have been picking up interference. When I grounded it according to the GS2 user manual the problem vanished. It shows me that I can not take anything for granted when it comes to proper wiring techniques.
Created Date: February 14,2011
Created by: keklon
Hello. I set up my F0-2AD2DA-2 in my DL06 with the 4 jumpers set for 10VDC .I used an IBox 400 in my ladder to format it for 2 input and 2output channels in slot 1 with data format to BCD. I an selecting V2010 with the pointer method. When I have conditional contacts load a value of 1175 into V2010 I get -5.4v out at the analog out. 2150 gives me -4v and 2869 gives me -3.5v. If 0-4095 is should give me 0=10V what am I missing?