Description
Key Technical Specifications
A secondary listing provides the following information, but none of these values has been confirmed through an OEM datasheet.
| Parameter | Supplier-reported information |
|---|---|
| Input channels | 8 differential inputs |
| Input signal types | 4–20 mA, 1–5 VDC, 0–10 VDC |
| Resolution | 12-bit or higher |
| Accuracy | ±0.1% full scale |
| Isolation | Galvanic isolation claimed |
| Operating temperature | 0 to +60°C |
| Physical construction | PCB with edge connector |
| Mounting / rack position | Not confirmed |
| Power supply | Not confirmed |
| Communication interface | Not confirmed |
| Hot-swap capability | Not confirmed |
Important: Do not use the reported channel count, accuracy, signal ranges, or isolation claims as approved engineering specifications until the original hardware documentation is obtained.
Product Introduction
The Honeywell FW-23-13 is identified in a secondary supplier catalog as an analog input module for legacy TDC 2000 and TDC 3000 distributed control systems. In this reported application, the module receives analog signals from field transmitters and makes the resulting measurement data available to the process control system. Typical measurement categories include pressure, temperature, flow, and other continuous process variables.
FW-23-13
If this identification is correct, the module belongs to a legacy DCS environment where rack compatibility, signal conditioning, field termination, and controller configuration are important replacement considerations. A visually similar analog input board cannot be assumed compatible. The correct hardware revision, terminal arrangement, input range, and system configuration must be established before installation.
Application Scenarios and Field Pitfalls
Potential applications
- Process transmitter signal acquisition.
- Refinery and petrochemical instrumentation.
- Chemical process monitoring.
- Power plant measurement systems.
- Continuous manufacturing process control.
Replacement checks
- Verify that the original installation actually identifies the board as FW-23-13.
- Confirm the TDC system generation and rack type.
- Compare the PCB assembly number and hardware revision.
- Check input channel count and signal ranges against the field wiring.
- Confirm isolation requirements and field termination compatibility.
- Verify controller configuration and channel scaling before returning the module to service.
Related Products and Variants
No directly interchangeable FW-23-13 variants or verified replacement models were established in the available documentation. Other Honeywell TDC analog input products should not be treated as replacements based only on their shared function.
Procurement and Quality Control
Because this is a poorly documented model designation, request the following before purchasing:
- Front and rear photographs of the module.
- PCB assembly number and revision.
- Any additional Honeywell part number on the label.
- Connector and terminal photographs.
- Original rack or controller identification.
- Functional test results covering all input channels.
Procurement assessment: FW-23-13 is a provisional Honeywell analog input identification, not a fully verified product specification. A clear photograph of the PCB label or its complete part number would help establish whether this is genuinely a TDC-series I/O board and prevent an incorrect replacement purchase.
