GE IC693ALG220F – 4-Channel Voltage Input Analog Module

This analog input module reads voltage signals from field sensors and transmitters. It belongs to the GE Series 90-30 PLC family for process monitoring. You can use this unit to measure pressure, level, or flow transducers.

Key Technical Specifications

Physical Design and Mounting

This module measures 127 mm in width and 89 mm in height. Its depth reaches 56 mm for standard Series 90-30 racks. The unit weighs 290 grams, making it easy to insert or remove. Two locking levers secure the module firmly into its chassis slot.

Internal Circuitry and Energy Storage

One hundred twelve components populate this double-sided analog board. A 2200 µF capacitor bank filters incoming power rail noise effectively. This bank also smooths voltage fluctuations from the backplane supply. Consequently, each analog channel receives clean reference voltage for accurate readings. Four precision op-amps condition the field signals before ADC conversion.

Channel Configuration and Signal Ranges

The unipolar setting accepts 0 to +10V from standard pressure transmitters. A twelve-bit converter gives you 4095 distinct steps across the chosen range. Therefore, the module resolves voltage changes as small as 2.44 mV per count.

Bus Communication and Update Performance

A 16-pin backplane connector transfers data to the CPU module. The module scans all four channels and updates outputs every 6 milliseconds. Each channel includes a 100 kΩ input impedance to minimize signal loading. LED indicators on the front panel show module active and channel over-range status clearly. You can mix this module with digital or specialty I/O in the same rack.