The Allen-Bradley 1747-PIC USNT is a Personal Interface Converter for the SLC 500 family that provides an RS-232 to RS-485 (DH-485) interface, enabling a PC serial port to communicate with a DH-485 network on an SLC 500 controller. The unit ships with a 279.4 mm (11 in) ribbon cable to connect to a PC serial port and is described in Rockwell manuals as the 1747-PIC Interface/Converter. Connection options include a 1747-C13 cable from the processor’s channel 0 to the PC serial port or via the 1747-UIC USB interface, supporting PC-based access to the SLC 500 DH-485 network.
