The Allen-Bradley 1771-IG is a digital input module designed for use within the PLC-5 programmable controller system. This module provides a reliable interface for monitoring discrete field signals, converting them into logic-level inputs compatible with the PLC-5 processor. As a legacy component of the 1771 I/O family, it is engineered to support industrial automation applications requiring robust signal acquisition.
Features
Compatible with the Allen-Bradley PLC-5 I/O chassis architecture.
Designed for high-density digital input monitoring.
Standard 1771-series form factor for seamless integration into existing rack-based systems.
Supports discrete signal input processing for industrial control loops.
Technical Specifications
Product Model
1771-IG
Manufacturer
Allen-Bradley
System Compatibility
PLC-5
Input Type
Digital Input
Point Count
16-Point
Weight
0.4 kg
Installation Guidelines
Ensure the PLC-5 chassis power is disconnected before installing or removing the 1771-IG module to prevent electrical damage or unexpected system behavior.
Verify that the module is fully seated in the designated chassis slot and that the locking tabs are engaged.
Use appropriate shielded cabling for field inputs to minimize electromagnetic interference (EMI) in high-noise industrial environments.
Ensure proper grounding of the I/O chassis to a common earth ground to maintain signal integrity and safety.
Maintain adequate ventilation around the chassis to prevent overheating during continuous operation.
FAQ
Is the 1771-IG still in production?
No, the 1771-IG has been discontinued by the manufacturer. We provide these units as tested spare parts to support legacy PLC-5 installations.
What system is this module designed for?
This module is specifically designed for the Allen-Bradley PLC-5 programmable controller platform and is compatible with standard 1771 I/O chassis.
