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- Honeywell
- FC-DCOM-232/485
- Communication Interface Module
- USA
- 110 × 70 × 61 mm
- 0.66kg
- Xiamen, China
- New & In Stock
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Honeywell FC‑DCOM‑232/485
Product Introduction
The FC‑DCOM‑232/485 is a rugged, compact communication interface module designed to bridge RS‑232 and RS‑485 serial communications. It delivers seamless protocol conversion and data exchange between Honeywell automation controllers and third-party devices across industrial environments such as process control, SCADA, and building automation.
Applications
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Integrating legacy RS‑232 devices into modern RS‑485 networks
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Enabling RS‑232/485 connections in process automation systems
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Facilitating communication in pipeline SCADA, RTU, PLC, or sensor networks
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Supporting Modbus RTU or custom serial protocols
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Providing reliable connectivity in oil & gas, power, chemical, and HVAC systems
Key Advantages
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Dual‑protocol support: Operates either in RS‑232 or RS‑485 mode for versatile deployment
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Rugged design: Durable metal enclosure and industrial-grade EMC protection
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Long‑reach communication: Supports RS‑485 transmission up to 1,200 m
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Easy installation: DIN‑rail mountable and hot‑swappable for maintenance convenience
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Configurable communication: Software-configurable baud rate, parity, data bits, and stop bits
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Diagnostic LEDs: Real-time indicators for TX, RX, error, and module status
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | FC‑DCOM‑232/485 |
| Brand | Honeywell |
| Function | RS‑232 / RS‑485 communication interface module |
| Supported Protocols | RS‑232 (0–250 kbps), RS‑485/422 (0–2 Mbps, FM0/FM1/Manchester) |
| Input Voltage | 5 V DC (±5 %) via controller backplane |
| Power Consumption | ≤ 2.5 W |
| Isolation | Opto‑isolated RS‑485 line to power |
| Mounting | DIN‑rail (TS32/TS35 × 7.5) |
| Operating Temperature | –40 °C to +70 °C |
| Storage Temperature | –40 °C to +85 °C |
| Humidity | 5%–95% RH (non‑condensing) |
| Dimensions | 110 × 70 × 61 mm |
| Weight | Approx. 0.66 kg |
| Protocols Supported | Modbus RTU (master/slave), ASCII (limited), custom serial |
| Certifications | CE, UL, TUV, FM (select versions) |
Related Models (Same Series / Category)
| Model | Description | Key Specs |
|---|---|---|
| FC‑DCOM‑232 | RS‑232 only interface module | Single RS‑232 port, similar spec |
| FC‑DCOM‑485 | RS‑485 only interface module | Single RS‑485 port, robust termination |
| FC‑DCOM‑234/485 | RS‑232 & RS‑485 combo with Modbus | DIN‑rail, LED diagnostics, 120 mm size |
| FC‑DCOM‑ETH | Ethernet (Modbus TCP) interface | Network-level communication module |
| FC‑DCOM‑CAN | CAN‑bus interface for motion control | Supports CAN protocol across networks |
Popular Honeywell Models (Same Brand)
| Model | Description | Typical Use Case |
|---|---|---|
| FC‑DCOM‑232/485 | Serial communication bridge (this model) | RS‑232/485 field integration |
| FC‑DCOM‑234/485 | Combo serial interface module | Dual-port serial conversion |
| FC‑DCOM‑ETH | Ethernet/Modbus TCP interface | Network-based field communication |
| FC‑DCOM‑CAN | CAN‑bus module | Industrial motion systems |
| FC‑PUI001 | Safety digital I/O signal module | Safety-critical I/O systems |
Frequently Asked Questions (FAQ – QA Format)
Q1: What do you use the FC‑DCOM‑232/485 for?
A1: It bridges RS‑232 and RS‑485 devices in industrial automation systems.
Q2: Can both RS‑232 and RS‑485 operate simultaneously?
A2: No — only one port is active at a time based on configuration.
Q3: What is the maximum RS‑485 cable length?
A3: Up to approximately 1,200 m, depending on baud rate and network setup.
Q4: Is the RS‑485 port isolated?
A4: Yes — it includes opto-isolation to protect against electrical noise.
Q5: Does it support Modbus RTU protocol?
A5: Yes — supports Modbus RTU in both master and slave modes.
Q6: What power does the module use?
A6: Powered with 5 V DC via the controller (no external supply required).
Q7: What environmental specs does it meet?
A7: Operates between –40 °C to +70 °C and up to 95% humidity (non-condensing).
Q8: How is baud rate configured?
A8: Configurable via software or via jumpers—standard rates up to 115.2 kbps for RS‑232 and up to 2 Mbps for RS‑485.
Q9: Can the module be hot-swapped?
A9: Yes — hot-swap capability is supported, depending on controller architecture.
Q10: What are its mounting options?
A10: It mounts easily on standard DIN rails (TS32/TS35 × 7.5).
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.