For PLCs, that are not supplying the loop current (2 x 20mA), the Constant Current Adaptor is required to establish a connection. Two constant current (20mA) sources are located in the solid metal 15 pin Sub.D connector shell to supply the loop current.
The adapter is delivered with a AC / DC adaptor.
The pin assignment matches the pin assignment of the IBH S5-Current Loop Converter. Pin assignment for Simatic® U90, U95, U100, U101, U115, U135, and U155. 15pin Sub.D female connector with the pin assignment A...9, B...2, C...6, D...7, E...1, F...8).