Overview
Configured for 4-20 mA HART signal interfacing in Honeywell Safety Manager systems, the Honeywell FC-PUIO01 51454294-176 (FC-PUIO01 Universal Safety I/O Module) provides direct electrical signal transfer between the DCS side and field wiring. It uses a 2-wire interface and operates from a 24 VDC supply.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FC-PUIO01 51454294-176 |
| Brand | Honeywell |
| Origin | USA |
| Product Type | Universal Safety I/O Module |
| Weight | 0.55 kg |
| Dimensions | 5.5 x 18 x 14.3 cm estimated shipping size |
| Operating Temp | -40 deg C to +70 deg C |
| Storage/Transport Temp | -40 deg C to +85 deg C |
| Operating Humidity | 5% to 95% RH, non-condensing |
| Power Supply | 24 VDC |
| Rated Current | 55 mA at 24 V |
| Power Consumption | 1.22 W at 24 VDC with 20 mA loop current and 250 Ohm load |
| Power Indication | Green LED |
| DCS Interface | 4-20 mA with HART |
| Wiring Scheme | 2-wire |
| DCS Side Connection | 37-pin DSUB connector on CC-UGIA01 |
| Power/DCS to Field Isolation | 1500 VAC |
| Transfer Accuracy | +/-20 uA at 200 C |
| Maximum Safe Voltage (Um) | 250 V |
| Uo | 25.2 V |
| Io | 110.1 mA |
| Po | 693.6 mW |
| Tariff Code | 8537101190 |
4-20 mA HART Signal Interface
The FC-PUIO01 handles 4-20 mA field-loop signals with HART communication. The module uses a 2-wire wiring scheme and connects to the DCS through the 37-pin DSUB interface on the CC-UGIA01. In addition, the specified 1500 VAC isolation separates the power/DCS side from the field side. Therefore, installation should preserve the defined isolation boundaries and signal wiring arrangement.
The module operates from a 24 VDC supply and draws 55 mA at 24 V. Its stated power dissipation is 1.22 W under the specified 20 mA loop-current and 250 Ohm load condition. The green LED provides local power indication.
The specified intrinsic safety parameters are Um 250 V, Uo 25.2 V, Io 110.1 mA, and Po 693.6 mW. These values should be checked against the associated field circuit and applicable installation requirements before commissioning.
Frequently Asked Questions
Q: What field signal does the FC-PUIO01 support?
A: It supports a 4-20 mA interface with HART communication using a 2-wire wiring scheme.
Q: How does the FC-PUIO01 connect to the DCS side?
A: The module uses a 37-pin DSUB connector on the CC-UGIA01 for the DCS-side connection.
Q: What are the specified isolation and intrinsic safety parameters?
A: Power/DCS-to-field isolation is 1500 VAC. The specified parameters are Um 250 V, Uo 25.2 V, Io 110.1 mA, and Po 693.6 mW.
Field Installation Guidelines
Install the FC-PUIO01 according to the applicable Honeywell system documentation and the associated CC-UGIA01 interface arrangement. First, verify the module model and complete part number before installation.
Use the specified 24 VDC supply and verify supply polarity and wiring before energizing the module. Next, connect the DCS-side interface through the designated 37-pin DSUB connection on the CC-UGIA01.
Keep 4-20 mA/HART signal wiring separated from high-voltage and high-current conductors. Where shielded instrumentation cable is required, terminate the shield according to the plant grounding scheme and Honeywell installation requirements.
Before commissioning, verify the field-loop parameters against the stated Um, Uo, Io, and Po limits. Also confirm the required isolation boundary and check loop continuity before applying operating power.
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