The Honeywell FS-DCOM-232/485, also cataloged as the FS-DCOM-232/485 Communication Interface Module, operates as a hardware interface for RS232 and RS485/422 signal transmission within Honeywell control processor networks.
Hardware Specifications
Parameter
Specification
Model
FS-DCOM-232/485
Brand
Honeywell
Origin
Not specified
Weight
2 Kg (shipping)
Dimensions
110 × 70 × 61 mm
Terminal Dimensions
6 × 57 × 47 mm
Operating Temp
Not specified
Power Consumption
Max 500 mA at 5 Vdc ±5%
Product Type
Communication Interface Module
Approvals
CE, TUV, UL, FM
DIN EN Rails
TS32 / TS35 × 7.5
Used Rail Length
117 mm (4.6 in)
RS232 Output
EIA/TIA-232 levels
RS232 Baudrate
0–250 kBaud
RS485/422 Output
EIA/TIA-485-A levels
RS485/422 Baudrate
0–2 MBaud (transparent, FM0, FM1, Manchester coded)
4-20 mA HART Loop Protocol
The FS-DCOM-232/485 integrates with Honeywell distributed control systems, supporting deterministic communication. While designed for RS232 and RS485/422, the module maintains compatibility with instrumentation networks utilizing 4-20 mA HART loop protocol, ensuring channel isolation and stable data exchange across redundant paths.
Frequently Asked Questions (FAQ)
Q: Can the FS-DCOM-232/485 be hot-swapped during operation? A: No, the module requires system shutdown before insertion or removal to avoid bus disruption.
Q: What baudrate ranges are supported for RS485 communication? A: The module supports baudrates from 0 up to 2 MBaud, including transparent, FM0, FM1, and Manchester coding.
Q: How is input power supplied to the module? A: Input voltage is 5 Vdc ±5%, with a maximum current of 500 mA provided by the control processor(s).
Field Installation Guidelines
Mount the FS-DCOM-232/485 securely on TS32 or TS35 rails with full mechanical engagement.
Maintain separation between communication cabling and high-voltage wiring to reduce electromagnetic interference.
Apply shielded cabling with proper grounding to maintain compliance with CE/TUV/UL/FM standards.
Verify connector seating and locking before energizing the system.
Confirm baudrate settings during commissioning to ensure proper communication.
