Description

Honeywell 900G03-0102 HC900 Digital Input Module

The Honeywell 900G03-0102, also cataloged as the 900G03-0102 Digital Input Module, operates as a dedicated hardware component for AC discrete signal acquisition within the Honeywell ControlEdge HC900 control system. The module receives 120/240 VAC field inputs and converts switching states into controller-readable digital signals.

Hardware Specifications

Parameter	Specification
Model	900G03-0102
Brand	Honeywell
Product Type	Digital Input Module
System Series	Honeywell ControlEdge HC900
Input Type	AC Digital Input
Channel Count	16 points
Input Voltage Range	120/240 VAC
Maximum Input Current	2.6 mA max per channel
Logic Supply Voltage	5 VDC via backplane
Origin	Not specified in supplied data
Weight	0.22 kg
Dimensions	13.3 x 14.1 x 3.5 cm
Manufacturer Status	Discontinued by manufacturer
Installation Type	HC900 controller rack module

Channel Isolation and Process Control Signal Handling

The Honeywell 900G03-0102 uses isolated digital input channels for monitoring AC field devices connected to the HC900 controller platform. The module supports point-level status detection from external electrical contacts, including switches, relays, and auxiliary contacts.

In addition, the module design follows Honeywell process control I/O practices with channel-to-channel isolation considerations. This arrangement reduces interference between field input circuits and supports stable signal processing within distributed control environments. The module does not provide analog measurement functions or 4-20 mA HART loop communication because it is designed specifically for discrete AC input acquisition.

Frequently Asked Questions

Q: What type of field signals does the Honeywell 900G03-0102 accept?
A: The module accepts 120/240 VAC discrete input signals and processes ON/OFF electrical states for the HC900 controller.

Q: How many input points are available on the 900G03-0102 module?
A: The module provides 16 digital input channels, with each channel supporting a maximum input current of 2.6 mA.

Q: Does the 900G03-0102 support analog signals or communication protocols?
A: No. The module is a digital AC input module and does not support analog channels, HART communication, FOUNDATION Fieldbus, or Profibus PA interfaces.

Field Installation Guidelines

• Install the 900G03-0102 module only in compatible Honeywell HC900 controller racks.
• Verify that field wiring voltage matches the specified 120/240 VAC input range before connection.
• Separate AC field signal wiring from low-level communication and analog signal cables to reduce electrical noise coupling.
• Use appropriate grounding methods for the controller cabinet and maintain proper shield termination practices where applicable.
• Confirm terminal connections and module seating before applying system power.
• Follow Honeywell HC900 installation manuals for rack addressing, I/O configuration, and controller recognition procedures

Specifications

• Brand: Honeywell

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems