AB 1769-IF8 CompactLogix 8 Pt Analog Input Module

The 1769-IF8 is a Compact I/O module that is manufactured by Allen-Bradley in compatibility with 1769 CompactLogix Controller and MicroLogix 1500 controllers. This controller features an embedded Eight (8) Input channels that support differential and single-ended wiring. Configurable signals are 0-20 mA and 4-20mA and +/10VDC, 1-5VDC, 0-5VDC, 0-10VDC.

The Analog signal that is received by the input channels are individually converted using Delta-Sigma conversion method. The converted signal is stored within the processor’s memory occupying 16 bits for unipolar and 15 bits for bipolar. Within the register are array of binary bits that represent the value of the input signal. To properly display the equivalent measurement or engineering values, the data is used conditioned using a Scale instruction. The data processed can be configured as engineering units, scaled for PID, percent range and raw data.

The power supply distance rating of 1769-IF8 is 8 modules. This refers to the physical module location which means it must not be installed 8 modules away from the 1769 CompactLogix power supply. This power supply distance rating ensures that the module will receive the appropriate backplane power.