ML1500 analog out problems

mto ind

Member
Join Date
Apr 2005
Posts
5
I'm new to analog programming and have a problem with my 1769-OF8V output card. This should be straight forward since I am only opening a valve with my 0-10vdc signal using a SCP instruction. The problem I have is I have a constant 5vdc signal at all 6 of the outputs I have enabled on the card but the ladder still shows 0.
INPUT N7:30
MIN 0
MAX 32767
SCL MIN 0
SCL MAX 10
OUTPUT O:5.0
No matter what value is in N7:30 the output remains at 0 and I still have 5vdc at the card.
Settings for each channel are Raw/por, 0-10 and no clamping. It acts like there is a setting wrong, but I don't see anything else.
 
Side note. PLC=Micrologix1500. Ive tried different scaling and min max values just to see if it makes a difference but it does not.
 
You have the parameters reversed. For an output, the result data is 0-32767 and the input data will be 0-10 VDC.

Here is an example from a ML-1200, with my control parameters scaled 0-6000 where 6000 => 60.00 Hz. Also, this was a 4-20 mA output, so I have the 20% offset in the output. This should get you started, though.
 

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