hello, I am very new to the controller world. I have a m91-2-r6-zk1 controller on a refrigerant dryer and I need to know how to connect to it and communicate with it. is there any hope for me, like I said very new and wanting to learn. thanks
1. Download the U90 software from this site.
2. If you don't have a communication cable, find your local Unitronics distributor and get an MJ10-22-CS25. Or order it online.
3. If your computer doesn't have a serial port, you'll need a USB to serial converter. Find one with the Prolific PL2303 chipset or get a Unitronics MJ10-22-CS35.