Honeywell 900C73R-0100-44 Redundant I/O Scanner Module

Product Overview

The Honeywell 900C73R-0100-44 is a dual-port I/O Expansion Module with redundancy support for the Honeywell ControlEdge HC900 system. This module extends I/O capacity beyond the local CPU rack, enabling distributed I/O architecture across multiple remote racks. The dual-port design provides communication path redundancy, ensuring continued operation even if one communication link fails, making it ideal for critical process applications requiring high availability.

Key Features

• Dual-Port Communication: Two independent ports for redundant I/O bus communication
• I/O Rack Expansion: Extends I/O capacity to remote racks
• Redundancy Support: Maintains I/O communication during single path failure
• High-Speed Data Transfer: Fast scan rates for real-time process control
• Hot-Swap Capable: Replaceable without system shutdown
• Status LEDs: Port activity and diagnostic indicators

Technical Specifications

• Model: 900C73R-0100-44
• Type: I/O Expansion Module (Dual Port, Redundant)
• Series: ControlEdge HC900
• Ports: 2 (dual redundant)
• Function: I/O rack expansion and remote I/O communication
• Compatibility: HC900 C30/C50/C70/C75 controllers
• Dimensions: 137 mm H × 38.1 mm W (5.4" H × 1.5" W)
• Weight: ~320 g
• Mounting: Chassis slot mount in I/O rack
• Operating Temperature: 0°C to +60°C
• Approvals: CE, UL, CSA

Installation Guide

1. Rack Installation: Install in remote I/O rack (900R04/900R08/900R12 series)
2. Port Connection: Connect Port 1 and Port 2 to redundant I/O bus cables from CPU rack
3. Termination: Ensure proper bus termination at both ends of I/O network
4. Configuration: Map remote I/O rack in ControlEdge Builder software
5. Redundancy Verification: Test failover by disconnecting one port and verifying continued operation

FAQ

Q: What is the difference between 900C73R-0100-44 and 900C53-0244-00?
A: 900C73R is a dual-port redundant expansion module. 900C53 is a single-port expansion module. Use 900C73R for redundancy-critical applications.

Q: How many remote racks can be connected?
A> The number of remote racks depends on the CPU model and system configuration. Refer to HC900 system documentation for maximum expansion limits.

Selection Tips

• Use 900C73R-0100-44 for applications requiring redundant I/O communication paths
• For non-redundant expansion, 900C53-0243-00 or 900C53-0244-00 may be sufficient
• Verify cable type and maximum distance for remote I/O bus