NodeRed with analog OUTput

[BeerGeek]

I have found trouble with nodered "UniPi output" block in connection with Analog Output mode.

I use Analog Output 1.01 with Current configuration, where sending 4-20mA to the valve. But in "UniPi output" block we see the limits:

Details for the Analog output input msg:
Number - in the interval <0;10> returns the input number, <0 returns 0, >10 returns 10.

So, when I send a 20mA to fully open a valve, this valve received only 10mA, because your module has limits.

How can I fix that?

[zdenek_jotio]

Hello @beergeek

You are right with problem when using analog output in configuration 0-20mA. When we designed nodes, we only implemented voltage output.

To fast repair you can add function node to output, that recalculate output value from 0-10 to 0-20. So your input value will be 0 to 10, but output value will be 0-20. We will try to repair output node with support for current output it in next week.

Function code to fast implementation:

Try to import funtion and connect it as in picture.

[{"id":"98b4db11.a43aa8","type":"function","z":"dd6bd412.3bde08","name":"0-20mA","func":"if(msg.payload.value) \n{\n    msg.payload.value = msg.payload.value*2.00;\n}\nreturn msg;","outputs":1,"noerr":0,"x":1260,"y":220,"wires":[["a7851ed2.a7d6"]]}]

Thank you for your notice.