PLC/DCS Universal Analog Input Using Either 4 or 6 Pin Terminal Block

September 07, 2013 // By Analog Devices
The circuit shown in Figure1 provides two, 16-bit, fully isolated, universal analog input channels suitable for programmable logic controllers (PLCs) and distributed control system (DCS) modules. Both channels are software programmable and support a number of voltage, current ranges and thermocouple, RTD types as specified in Figure 1. The inputs are protected for dc overvoltage conditions of ±30 V.
ADI, Analog Devices, 16 bit input channels, PLC, DCS