Foxboro FBM218 (HART redundant output module, I/A Series DCS)

FBM218 is an 8-channel HART redundant output module of Schneider Foxboro I/A Series DCS, used for 4-20mA + HART intelligent instruments (valve positioners, transmitters), with dual-channel redundancy + channel isolation, SIL2 certification, essential for industrial critical circuits. 

Core positioning

System: Foxboro I/A Series DCS (Evo)

Type: 8-channel isolated output, 4-20mA + HART (5/6/7 version)

Redundancy: Dual-module hot standby (primary / tracking), single fault does not stop operation

Application: Control valves, positioners, HART transmitters, etc. for intelligent field equipment control

Key parameters

Channels: 8 channels / module, isolated between channels

Signals: 4-20mA analog + additional HART digital (each channel selectable)

Accuracy: ±0.05% of the range, 13-bit resolution

Load: 250Ω (compatible with HART operator panel)

Communication: HART 5/6/7, 1200 baud, 2 messages per second

Power supply: 24VDC redundant (±5%/-10%), power consumption ≤ 8W

Temperature: -20℃ to +60℃ (module)

Certification: SIL2, CE, UL, ATEX

Distance: Maximum 3030m (HART specification)

Model and redundancy

FBM218: Standard 8-channel HART redundant output module

Redundancy configuration: paired use (primary + backup), outputs connected to 1 terminal block (TA) together, automatic and uninterrupted switching in case of failure

Typical applications

Petroleum and chemical industry: reactors, distillation towers, compressor anti-surge valves

Electricity: boiler feedwater valve, temperature reduction and pressure reduction, desulfurization and denitrification

Water treatment: pH/flow control loop, dosing valve

Companion list

Module: FBM218 (redundant in pairs)

Terminal: FBM218 dedicated TA terminal component

Instrument: HART positioner (e.g. Fisher DVC6200), HART transmitter