Touching it to V- even turns on an RS232 icon on the display, as seen above. To make this accessible without opening the case a momentary push button can be added, as well as connector for signal ...

Description: RS485 interface for long transmission networks for connection to a PC via USB converter or machine control (PLC) Analog output adjustable to 0 to 20 mA or 4 to 20 mA for connection of ...