JRiddington

**** SOLVED **** Hi guys, thank you so much for your help over the last few days. It turns out that there was a dodgy earth to the 24V power supply feeding the Unitronics unit. It was strange as everything else worked, it only seemed to be affecting the analog inputs to the unit. As soon as the earth was sorted i was getting the values i expected in the inputs from the outputs. Thanks again guys for all of your time.

Hi guys, I have now tried starting a new project. Absolutely no ladder at all. I have still got the analog outputs directly wired to the analog inputs. Output 0 to input 0, and output 1 to input 1. I have scaled both inputs and outputs in the I/O settings to have a range from 0 to 10000, they are also both set to 0-10v. I created a watch table for all 4 (analog input 0 and 1, and analog output 0 and 1). If i understand correctly, if i send analog output 0 to a value of 1000 i should get 1000 back on the input? This is not the case i appear to get a value of 340 on the input. How can this be possible? The scaling is the same and one is directly connected to the other. I have checked the voltage and that appears to be correct just not the value of the input.

Yes the analog input settings are set correctly, both 0-10v as well as the outputs. The ranges are also the same on all. I have since tried wiring the outputs straight into the inputs and giving the output a number. The input is reading is different to what i am giving the output which is strange

Hi there, I am using a Unitronics US10-B5-RA28 I was hoping for some advice please. I believe I have some scaling issues on my proportional valve. I have it connected to an analog in and out. One to send it a setpoint from the HMI, and the other to read what its doing. The proportional valve is capable of doing 0-10 bar. I am giving the value 2 bar to the proportional valve via the HMI. I appear to be getting 2v from the analogue input which makes sense. 0-10v and 0-10bar (2v for 2 bar). Although I am sending 2 bar and getting 2v on the multimeter it is telling me I am only getting 0.66bar. I have checked the actual pressure with a physical gauge and I am getting the 2 bar requested. Any advice or something I may have missed? Jake

Hi Dan, Thanks for getting back to me. Aha ok yes i could be something to do with this, i hadnt thought of that. I think you could be on the money with this. I am running version 1.33.236 of Unilogic Studio. No idea what version was used previously however as it is a PLC we have acquired from an outside source. Id just like to upload the project in there now just in case we need to use it again. Ill have a dig and see if i cant find out what version number they used. I'd imagine it will be a much older version as i have only just downloaded Unilogic and the program in this PLC is at least a few years old.

Hi there, Any advice welcomed. I need to upload a program using UniLogic. I have tried connecting via USB and via Ethermet and Unilogic doesnt seem to see the controller? Any techniques or anything im missing? The upload button at the bottom of the menu just remains greyed out. Thank you