Allen-Bradley 1769-IF16C Compact IO Analog Input Module

Allen-Bradley 1769-IF16C Compact I/O is a high-density analog input module for CompactLogix systems that provides 16 single-ended current-input channels for direct connection to 4–20 mA sensors and loops. Each channel supports a 0–20 mA or 4–20 mA input with a full-scale range of 0–21 mA (3.2–21 mA) and is converted by a Sigma-Delta ADC to 16-bit resolution (unipolar) or 15 bits plus sign for bipolar configurations, delivering precise current measurements across the 16 channels. The module presents about 249 Ω input impedance, supports a per-channel common-mode voltage range up to ±10 V DC, and requires a 24 V DC or 30 V AC/DC power supply, drawing about 70 mA at 24 V (190 mA at 5.1 V) with up to 4 W of heat dissipation; it is designed for DIN rail or panel-mount installation and exposes 22 input words, 2 output words, and 98 configuration words for detailed data access and configuration. For field wiring maintenance Rockwell offers compatible replacement terminal blocks (e.g., 1769-RTBN18), and the module is compatible with CompactLogix controllers, MicroLogix 1500, and other 1769 I/O chassis within the Compact I/O family.