Description
The Honeywell 900C73R-0100-44 (often tracked by cross-reference board assembly number 50001439-250 or variations thereof) is a high-availability remote network interface module belonging to the ControlEdge HC900 and Hybrid Control Designer automation architectures. It installs into the left-hand communication bay slots of a redundant extension rack (such as the 900R12R or 900R08R chassis) to link distributed process input/output channels with the main controller CPU core.
Commercial Supply Status
- Condition: New Original (New Surplus) or Refurbished (Fully Bench Tested)
- Availability: In stock / Available upon request
- Lead Time: 1–3 business days
- Warranty: 12 months
- Pricing Note: Price subject to market conditions; contact us for a firm quote.
Field Engineering & Integration Notes
In high-reliability plant setups, the 900C73R-0100-44 manages real-time remote communication loops over redundant Ethernet structures. The module acts as the local processor for the rack it inhabits, converting backplane I/O slot data frames into industrial Ethernet protocols and routing them back to the active master C70R or C75 control processors.
During a 2 AM troubleshooting cycle where the extension rack drops off the controller’s network tree, verify the hardware node address rotary switches located on the side or rear casing of the module. If you are replacing a faulty scanner, these physical address settings must precisely replicate the original component’s state before insertion, or the main CPU will reject configuration synchronization. Additionally, ensure that the RJ45 shielding fits tightly and that communication lines A and B map to distinct physical network switches, preventing localized hardware failures from isolating the entire remote sub-rack.
Hardware Model Code Breakdown
- 900C: ControlEdge HC900 Series Components.
- 73R: High-availability Redundant I/O Remote Scanner architecture variant.
- 0100: Hardware configuration identifier (specifying communication port matrix, layer profiles, and baseline manufacturing firmware revisions).
- 44: Conformal coating and validation index, ensuring resistance to aggressive atmospheric moisture and corrosive elements standard in chemical or wastewater applications.
Technical Specifications
| Parameter | Value |
| Product Platform | ControlEdge HC900 / Hybrid Controller System |
| Module Function | Redundant Remote I/O Scanner Interface |
| Associated Board Assembly | 50001439-250+E (or compatible build variants) |
| Communication Interfaces | Redundant RJ45 ports for dedicated system bus expansion |
| Current Consumption | \sim 600 mA maximum draw from the 5 V DC internal backplane rail |
| Backplane Interfacing | Optimally fitted for 900R08R and 900R12R Redundant I/O Chassis |
| Conformal Coating | Standard factory applied for environmental hazard mitigation |
| Operating Temperature | 0 to +60\ ^{\circ}C\ (+32 to +140\ ^{\circ}F) |
| Storage Temperature | -40 to +85\ ^{\circ}C\ (-40 to +185\ ^{\circ}F) |
| Relative Humidity Limits | 5 to 95\% relative humidity (non-condensing state) |
| Regulatory Compliances | CE, UL 61010-1, FM Class I Division 2, ATEX Zone 2 |
Frequently Asked Questions
- Q: Can a 900C73R scanner module be hot-swapped while the remote I/O rack is under power?
- A: Yes. Provided that the companion scanner module in the redundant pair is healthy, online, and actively processing the network communication loop, you can extract the faulted module and insert the replacement under power. Ensure that the replacement unit’s physical node dial configuration is completely matched before insertion.
- Q: What is the mechanical indicator distinction between standard non-redundant and redundant scanners?
- A: Standard non-redundant scanners (such as the legacy 900C51 or 900C53) handle single-point control lines and install into non-redundant backplanes. The
73Rdesignator features dedicated inner circuitry to cross-talk dynamically with a parallel scanner matching unit across a redundant dual-bus track assembly.
- A: Standard non-redundant scanners (such as the legacy 900C51 or 900C53) handle single-point control lines and install into non-redundant backplanes. The
- Q: The diagnostic LED indicates a solid amber state upon boot. What does this mean?
- A: A solid amber indication generally maps to an uninitialized device state, an incorrect address conflict, or a firmware mismatch relative to the active master processor configuration. If cycling power locally does not advance the scanner into a cyclic flashing green state, connect via the Honeywell Hybrid Control Designer utility to verify parameter and firmware revisions match the system baseline.
