FOXBORO FBM206 8-Channel Galvanic Isolated Pulse Input Fieldbus Module I A Series DCS
- Product Code: FBM206
- Availability: In Stock
FOXBORO FBM206 8-Channel Galvanic Isolated Pulse Input Fieldbus Module I/A Series DCS
Manufacturer: FOXBORO (Schneider Electric Process Automation)
Part Number: FBM206 (main part code P0916CQ; derivative FBM206b:4 pulse in +4 analog out)
Product Type: Compact 200 Series FBM pulse counting fieldbus module, speed/flow pulse signal acquisition unit
Matching Platform: Foxboro I/A Series DCS, FCM100E redundant fieldbus gateway, ZCP270/ZCP280 controllers, passive TA termination base, DIN rail modular baseplate
Core Function: 8 fully galvanically isolated pulse input channels; accepts 7~27VDC two-wire pulse signals from turbine/vortex flowmeters, magnetic pickup speed sensors; 10Hz~25kHz wide frequency measurement; lossless pulse counting & high-precision frequency calculation; per-channel open/short circuit self-diagnosis; 2Mbps redundant HDLC fieldbus communication; front panel multi-state LED status array; 2500Vrms channel-to-channel & channel-ground isolation; ISA G3 harsh industrial grade; simplex or FBM hot redundant rack deployment; optional anti-corrosion conformal coating for offshore corrosive environments
1. Product Overview
FBM206 is dedicated pulse input FBM module of Foxboro I/A Series Compact 200 I/O system, targeted at flow totalization, rotating speed monitoring and turbine pulse measurement scenarios widely adopted in power, petrochemical and offshore industries.
Equipped with 8 independent galvanic isolated pulse channels, each channel supports 7~27VDC two-wire pulse transmitters including turbine flow meters, vortex shedding flow meters, magnetic pickup speed probes and mechanical pulse contact switches. The module supports 10Hz to 25kHz full frequency range sampling, realizes zero missing pulse accumulation and frequency calculation with 0.01% reading accuracy, eliminating flow measurement deviation caused by high-speed pulse loss.
2500Vrms full channel isolation completely isolates field power noise and DCS internal logic circuit, multi-stage TVS surge protection prevents module burnout from miswiring short-circuit. Built-in per-channel real-time self-diagnosis detects open circuit, short circuit and abnormal pulse amplitude, fault data uploaded to DCS HMI synchronously with front panel LED visual alarm for rapid field troubleshooting without handheld testers.
Communicates with upper FCM gateway via redundant 2Mbps HDLC fieldbus, supporting master-tracker hot redundant pairing with another FBM206 to eliminate single-point failure risk of critical flow and speed loops. Matches passive TA terminal base for centralized field wiring, DIN rail modular baseplate mounting saves cabinet space and supports hot-swap replacement without controller shutdown.
Conforms to ISA S71.04 Class G3 harsh environment standard, resistant to dust, humidity and chemical volatile gas; optional IPC-CC-830 conformal coating for offshore platform corrosive control rooms. This FBM206 pulse module is standard spare flow/speed acquisition I/O hardware for I/A Series DCS cabinets, used for system renovation, pulse channel expansion and routine loop fault maintenance replacement.
