Forcing an analog output in unity pro 8.0

[kabou85]

Hi,

im familiar only with Siemens PLC, and now im doing commissioning in unity pro project.
So question is that how do I force an analog output in unity?
Analog card is 140 ACO 020 00, and im pretty sure that straight from the module its not possible.

I was trying to use the device DDT value, but it didn't work out. I didn't figure out the correct address for that.

very grateful if somebody can help me with this.

Best regards,
kabou

 

[Mesmeric]

kabou85,
Have you used an animation table?
You have the option to force / modify a value.

 

[kabou85]

I have used animation table, but im only able to force digital inputs and outputs with that.
I think that the device DDT value would be the way to force analog signals also with the animation table, but I haven't succeeded with that.

 

[kabou85]

Anyone has ideas for this?
there must be an easier way than changing the actual value in program, and then rebuild it again..

 

[Lare]

1. use move block with enable pin for simulating %mw value. (you probaly copy %iw values to %mw somewhere at program?

2. there is write_input_int -block on library, it should work for this. (use en (enabled) pin also with this)

 

[kabou85]

Thanks! that will get me forward!
apparently there is not a really "forcing" option for analog outputs in unity.

 

[Lare]

I don't know any other methods for this, I think that you can only force bits at Unity Pro with animation tables.

Making own DFB-block with simulation on/off selection bit and coping %IW to %MW is maybe easist.

 

[Brendonh]

You Can Use the Animation Table But you use the modify value option not the force option.