Honeywell FC-DCOM-232485 Industrial RS-232 to RS-485 Converter
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Honeywell FC-DCOM-232485 Industrial RS-232 to RS-485 Converter
The Honeywell FC-DCOM-232485 is a rugged industrial communication converter designed to facilitate seamless data exchange between RS-232 and RS-485 devices in automation systems. As part of Honeywell’s FC series of connectivity solutions, it acts as a protocol translator, converting signals between these two widely used serial communication standards without compromising data integrity or speed.
Model FC-DCOM-232485
Brand Honeywell
Type Industrial RS-232 to RS-485 Converter
Protocols Supported RS-232 (DB9), RS-485 (Terminal Block)
Data Rate 300 bps to 115.2 kbps (user-configurable)
Communication Direction Bidirectional, auto-sensingRS-485 Multi-DropUp to 32 devices
Operating Temperature-10°C to 60°C (14°F to 140°F)
Power Supply12-24 V DC (100mA max)
Dimensions85mm (W) x 55mm (H) x 30mm (D)
Weight150 grams
Protection Features25kV ESD protection, EMI shielding
MountingDIN rail (35mm) or panel-mountable
CertificationsCE, UL 508, CSA C22.2
Housing MaterialZinc-plated steel
The Honeywell FC-DCOM-232485 is a rugged industrial communication converter designed to facilitate seamless data exchange between RS-232 and RS-485 devices in automation systems. As part of Honeywell’s FC series of connectivity solutions, it acts as a protocol translator, converting signals between these two widely used serial communication standards without compromising data integrity or speed.
FC-DCOM-232485
Unlike generic converters, the Honeywell FC-DCOM-232485 is engineered specifically for industrial environments, where reliability and noise immunity are critical. It fits into control architectures as a standalone device or mounted within control cabinets, enabling legacy equipment (such as older sensors, actuators, or HMIs with RS-232 ports) to communicate with newer systems that use RS-485 for longer-distance, multi-device networks. For system integrators, its value lies in its simplicity: it eliminates the need for custom programming or complex configuration, reducing setup time and minimizing the risk of communication failures. Whether retrofitting a plant with mixed-generation equipment or expanding an existing network, the Honeywell FC-DCOM-232485 ensures that data flows smoothly between devices, keeping the entire automation ecosystem connected.
FC-DCOM-232485
Main features and advantages:
The Honeywell FC-DCOM-232485 distinguishes itself with a focus on industrial-grade reliability and flexible performance. At its core, it handles bidirectional conversion between RS-232 (short-distance, point-to-point) and RS-485 (long-distance, multi-drop) protocols, supporting data rates from 300 bps to 115.2 kbps to match the requirements of connected devices—whether a slow-response temperature controller or a high-speed barcode scanner.
Built to withstand harsh industrial conditions, the Honeywell FC-DCOM-232485 features a rugged metal housing that resists electromagnetic interference (EMI) from nearby motors or variable frequency drives. It operates reliably in temperatures ranging from -10°C to 60°C, making it suitable for installation in unheated cabinets or hot production areas like foundries. Unlike consumer-grade converters, it includes built-in surge protection (up to 25kV ESD) on all communication lines, preventing damage from voltage spikes common in factory environments.
A key functional benefit is its auto-sensing data direction control, which eliminates the need for manual flow control settings. This feature ensures that data transmission switches seamlessly between send and receive modes, critical for time-sensitive applications like conveyor belt synchronization. The converter also supports multi-drop configurations on the RS-485 side, allowing up to 32 devices to share a single network—ideal for connecting multiple sensors to a central controller. For engineers, this flexibility reduces the need for multiple converters, simplifying cabinet layout and lowering costs.
FC-DCOM-232485
Technical specifications:
Model FC-DCOM-232485
Brand Honeywell
Type Industrial RS-232 to RS-485 Converter
Protocols Supported RS-232 (DB9), RS-485 (Terminal Block)
Data Rate 300 bps to 115.2 kbps (user-configurable)
Communication Direction Bidirectional, auto-sensingRS-485 Multi-DropUp to 32 devices
Operating Temperature-10°C to 60°C (14°F to 140°F)
Power Supply12-24 V DC (100mA max)
Dimensions85mm (W) x 55mm (H) x 30mm (D)
Weight150 grams
Protection Features25kV ESD protection, EMI shielding
MountingDIN rail (35mm) or panel-mountable
CertificationsCE, UL 508, CSA C22.2
Housing MaterialZinc-plated steel
Contact Us Phone:+86 16626708626 WeChat/WhatsApp:+86 16626708626 Email: 3772179818@qq.com
FC-DCOM-232485
Application areas:
In industrial facilities where legacy equipment and modern automation systems must work in harmony, the Honeywell FC-DCOM-232485 serves as an essential translator, bridging the gap between different communication protocols. Imagine a chemical plant where a 20-year-old batch reactor—equipped only with RS-232 ports—needs to share data with a new Experion DCS that communicates via RS-485. Without a reliable converter, this mismatch could force costly equipment upgrades or manual data logging, risking errors and inefficiency. The Honeywell FC-DCOM-232485 eliminates this barrier, enabling seamless data flow between the reactor’s controllers and the DCS, ensuring real-time monitoring of temperature and pressure without disrupting operations.
In food and beverage processing lines, the Honeywell FC-DCOM-232485 proves equally valuable. Many packaging machines use RS-232 for local operator interfaces but need to connect to RS-485-based SCADA systems for centralized production tracking. This converter ensures that machine status updates—like fill levels or seal temperatures—reach the SCADA system instantly, allowing managers to adjust production schedules proactively. Used in industrial automation setups ranging from small-scale manufacturing cells to large distributed facilities, the Honeywell FC-DCOM-232485 resolves protocol conflicts, extending the lifespan of legacy equipment while enabling integration with modern control systems. Its ability to handle bidirectional communication makes it indispensable in environments where both monitoring and control commands must flow between mismatched devices.
FC-DCOM-232485
Related products:
Honeywell FC-DCOM-485232 – Reverse-direction converter, translating RS-485 to RS-232 for devices like legacy HMIs needing to connect to modern RS-485 sensors.
Honeywell FC-DCOM-Eth – Ethernet-enabled variant that adds TCP/IP conversion, allowing RS-232/485 devices to connect directly to networked control systems.
Honeywell FC-PWR-24 – Compact 24V DC power supply optimized for the Honeywell FC-DCOM-232485, with surge protection matching the converter’s specs.
Honeywell FC-CAB-232 – Shielded RS-232 cable (2m) pre-wired with DB9 connectors, ensuring noise-free communication with the Honeywell FC-DCOM-232485.
Honeywell FC-CAB-485 – Twisted-pair RS-485 cable (5m) with terminal block ends, designed to minimize signal loss when paired with the Honeywell FC-DCOM-232485.
Honeywell FC-DIN-MNT – DIN rail mounting clip set for secure installation of multiple Honeywell FC-DCOM-232485 units in tight control cabinets.
Honeywell FC-TERM-485 – RS-485 termination resistor kit, preventing signal reflections in long cable runs connected to the Honeywell FC-DCOM-232485.
Honeywell FC-CONF-USB – Configuration tool with software that allows users to adjust baud rates and parity settings on the Honeywell FC-DCOM-232485 via a laptop.
Installation and maintenance:
Before installing the Honeywell FC-DCOM-232485, verify that the target devices use compatible baud rates and parity settings—mismatched parameters are the most common cause of communication failures. For RS-485 networks longer than 100 meters, install the FC-TERM-485 termination resistors at both ends of the bus to eliminate signal reflections. Mount the converter on a grounded DIN rail to enhance EMI shielding, and ensure at least 10mm of clearance around it for heat dissipation, even in enclosed cabinets.
When wiring, connect the RS-232 device to the DB9 port using the FC-CAB-232 cable, ensuring pin assignments (TX, RX, GND) match the device’s requirements. For RS-485 connections, use the terminal block to link to the bus, taking care to observe polarity (A/B lines) to avoid reversed data flow. Power the unit with a regulated 12-24V DC supply, and add a surge protector if the converter is installed near high-voltage equipment like motors or transformers.
WhatsApp: +86 16626708626
Email: 3772179818@qq.com
Phone: +86 16626708626
