The Allen-Bradley 1769-IF8 is an analog input module. It belongs to the Compact I/O series of products. This controller features a total of eight (8) individually configurable input channels. This unit accepts +/- 10 volts direct current (DC) and 0 to 21 milliamperes analog signals from field devices. This input module supports input modules from both the MicroLogix 1500 and the 1769 CompactLogix series. This product weighs approximately 450 grams and has physical dimensions that measure 118 mm x 87 mm x 52.5 mm.
This unit is limited to 120 milliamperes of bus draw current at 5 volts Dc and 70 milliamperes at 24 volts DC, with an input impedance of 220 and 250 ohms at the voltage and current terminals, respectively. The overload limit at the input terminal is +/-30 volts DC continuous, at the voltage terminal it is 0.1 milliamperes, and an overload of +/-32 milliamperes at +/- 7.6 volts DC.