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The Allen-Bradley 1771-IFMS is an analog input module tailored for PLC5 processor systems, featuring eight intrinsically safe input channels with a fast millivolt response. It supports a 0-50 mV input voltage range and offers a 12-bit resolution with an accuracy of 0.1% at 25°C. The module excels with its +/- 1 LSB linearity and repeatability, providing robust performance enhanced by input protection up to 32 volts and a 14.5 ms scan rate across its differential inputs. With its high 1 megaohm input impedance and exceptional 100 dB common-mode rejection at 60 Hz, the 1771-IFMS ensures precise signal processing. Installation requires careful adherence to wiring specifications, utilizing a 1771-WG swing arm with solid or stranded copper wire compatible with substantial temperature and torque ratings, and it is crucial to handle the module with electrostatic precautions due to its RIUP limitations. Operating within a 0 to 60°C temperature range and accommodating relative humidity up to 95% non-condensing, this open-enclosure module maintains resilience with shock ratings of 30 G non-operating and 15 G operating, aligning with the T6 North American temperature code standards.