I'm trying to do RUN/STOP via communication by writing 0/1 to DO205, but it's not working.

72×144×100 mm sized Digital Indicating Controller has clear bar graph display for PV, SV and MV. It comes with powerful 14 control modes, including optional Custom Computation and dual loop control. The universal input, auto-tuning, "SUPER" functions are standard. Position proportional control and RS485 communication are optionally available.

The UT321 Digital Indicating Controller was discontinued on 1/01/2010. The UT35A/UT32A Temperature Controller is a replacement product.

UT350 Digital Indicating Controller

UT351 Digital Indicating Controller

Model Name: UT420

UT450 Digital Indicating Controller

The UT520 Digital Indicating Controller was discontinued on 1/01/2010. The UTAdvanced UT52A is a replacement product.

UT550 Digital Indicating Controller

UT551 Digital Indicating Controller

Highly functional 1/4 DIN sized Controller comes with Custom Computing and 12 powerful control functions including dual-loop control. It also features easy-to-see large PV display and LCD display for interactive setting and programming. The universal I/O, auto-tuning, "SUPER" and "SUPER2" functions are standard. Two ports of RS-485 communication are option.