CC-GAIX21 Honeywell GI/IS IOTA Analog Input Module

Description:

The Honeywell CC-GAIX21 is a low-level analog input IOTA (Input/Output Termination Assembly) module designed for precise signal acquisition in Honeywell Experion Series C control systems. It supports both 2-wire and self-powered transmitters, enabling accurate measurement of current and voltage signals in process control environments. With HART-compatible functionality, high input impedance, and superior noise rejection, it provides reliable signal integrity even in electromagnetically harsh industrial conditions.

Honeywell CC-GAIX21 Analog Input GI/IS IOTA module designed for industrial automation systems. This module provides reliable analog input functionality, specifically configured for Group I/IS intrinsically safe environments. This module is typically part of a larger control system where precise and safe analog signal acquisition is required. 

Its value lies in its exceptional measurement accuracy, channel-to-channel isolation, and seamless integration with the Honeywell ecosystem. Each channel is individually isolated, preventing ground loops and cross-talk between signals, which is critical for maintaining signal integrity in complex plant environments. The module also features comprehensive diagnostics, enabling it to detect field wiring faults such as open circuits or short circuits and report them to the control system for immediate operator awareness. Implementing the Honeywell CC-GAIX21 ensures that critical process measurements are acquired with fidelity, supporting precise control, advanced process optimization, and reliable safety interlocks within industries where data accuracy is paramount for safety, quality, and efficiency.

Specifications:

Module Name. : CC-GAIX21

Number of Channels: 16 total (12 single-ended, 4 differential)
Input Ranges: 0–5 V, 1–5 V, 0.4–2 V, 4–20 mA (via 250 Ω resistor)
A/D Converter Resolution: 16-bit
Hardware Accuracy: ±0.075% of full scale at 23.5°C ±2°C; ±0.15% (0–60°C)
Input Impedance: >10 MΩ
Input Scan Rate: 50 ms
Common Mode Voltage: -6 to +5 V peak (DC to 60 Hz)
Common Mode Rejection Ratio: 70 dB (DC to 60 Hz, 500 Ω imbalance)
Normal Mode Rejection Ratio: 19 dB at 60 Hz
Maximum Input (no damage): ±30 V differential
Filter Response: Single-pole RC, -3 dB at 6.5 Hz
Crosstalk: -60 dB (DC to 60 Hz, channel-to-channel)
Power Supply: 24 VDC
Operating Temperature: 0°C to 60°C
Storage Temperature: -40°C to +85°C
Humidity : 5% to 95% non-condensing

Features:

• Multi-Channel Signal Processing

16 analog channels with mixed single-ended and differential inputs.

• High Precision

16-bit A/D conversion and ±0.075% accuracy ensure superior measurement quality.

• Flexible Input Configuration

Supports voltage and current inputs, accommodating a wide range of sensors.

• Field Device Compatibility

Works with both 2-wire and self-powered transmitters.

• Reliable Isolation

Protects control hardware from overvoltage and signal cross-coupling.

• Compact Design

Optimized for Series C IOTA chassis, conserving panel space.

• Strong Noise Immunity

70 dB CMRR and -60 dB crosstalk suppression

• Safety Certified

Class 1 Div 2 non-incendive interfacing without fuses

• Robust Protection

Individually protected current limiting circuits

• Industrial Reliability

Stable performance across wide temperature ranges

• Seamless Integration

Designed for Honeywell Experion Series-C I/O systems

QA:

Q1: Can the CC-GAIX21 handle both voltage and current inputs?
A1: Yes, it supports configurable input types, including voltage and 4–20 mA current loops.

Q2: Is this module compatible with HART transmitters?
A2: Yes, it can interface with HART-enabled devices through its analog input channels.

Q3: What makes it suitable for low-level signal measurement?
A3: Its high input impedance, low ripple, and 16-bit resolution ensure precise acquisition of weak analog signals

Datasheet Link:

CC-GAIX21 Honeywell GI/IS IOTA Analog Input Module PDF Datasheet