The Honeywell 900C73R-0100-44, also cataloged as the 900C73R-0100-44 Redundant I/O Scanner Module, operates as a dedicated hardware component for real-time remote I/O data scanning within the Honeywell ControlEdge HC900 controller network.
Hardware Specifications
Parameter
Specification
Model
900C73R-0100-44
Brand
Honeywell
Origin
USA
Weight
Approx. 0.4 kg - 0.5 kg
Dimensions
Approx. 3.8 cm x 14.0 cm x 14.7 cm
Operating Temp
0 deg C to 60 deg C
Power Consumption
5 VDC backplane power supply
Product Line
ControlEdge HC900 Series
Module Type
Redundant I/O Scanner Module
Communication Interface
Dual Ethernet ports, 10/100 Mbps
Network Topology
Supports star and ring I/O network configurations
Installation Method
Rack-mounted module with hot-swappable capability
Relative Humidity
5% to 95% non-condensing
Storage Temperature
-40 deg C to 85 deg C
Honeywell Process Control Communication Features
The 900C73R-0100-44 manages communication between the HC900 controller and distributed I/O racks through Ethernet-based data exchange. It performs cyclic I/O scanning, diagnostic monitoring, and communication error handling within the controller architecture.
In addition, the module supports redundant network configurations to maintain controller-to-I/O communication during a primary communication path failure. The dual Ethernet interface allows flexible network wiring, including ring-based architectures for distributed process applications.
The module operates within Honeywell process control environments where channel-to-channel signal separation and structured I/O communication management are required. It supports system integration with analog and digital I/O modules connected through the HC900 platform.
Frequently Asked Questions
Q: Does the Honeywell 900C73R-0100-44 support hot-swapping during system operation? A: The module supports removal and insertion under power when the HC900 system configuration and installation procedures permit RIUP operation. Verify controller firmware and rack configuration before replacement.
Q: What communication interface does the 900C73R-0100-44 use for remote I/O scanning? A: The module uses dual Ethernet communication ports for remote I/O network connections and supports 10/100 Mbps data transmission.
Q: How does the redundant configuration affect system operation? A: The redundant architecture allows the system to maintain I/O communication availability by transferring operation to the available communication path when a configured fault condition occurs.
Field Installation Guidelines
Install the module in the designated HC900 rack position according to the controller hardware configuration manual.
Verify that the backplane connector is clean and correctly aligned before insertion.
Connect Ethernet communication cables using industrial grounding and shielding practices.
Separate communication cables from high-voltage power wiring to reduce electromagnetic interference.
Ground cable shields according to plant electrical standards and avoid multiple uncontrolled grounding points.
Confirm network addressing, controller configuration, and firmware compatibility before commissioning.
Inspect module diagnostic indicators after installation to verify communication status and fault conditions.
