FBM245 RH927AL Foxboro I/O module

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Material number:
FBM245 RH927AL

Description:

0 to 20 mA I/O Module with HART® Support (Redundant)
Part of the Foxboro Evo™ Control System
Four isolated analog input channels and four isolated analog output channels
Supports redundant module pairs for continuous operation in the event of a module fault
Compatible with 4 to 20 mA signals and HART Version 5, 6, or 7 instruments

The FBM245 RH927AL is a redundant-capable I/O module that interfaces electrical input/output signals from field sensors and actuators to the redundant module Fieldbus. Each module contains four 0 to 20 mA galvanically isolated analog input channels and four 0 to 20 mA galvanically isolated analog output channels (eight total). When configured as a redundant pair, operation continues through replacement of a suspect module.

Technical Data:

Input channels:4 isolated and independent redundant channels
Input range (each channel):0 to 20.4 mA dc
Input accuracy:±0.075% of span
Output channels:4 isolated and independent redundant channels
Output range (each channel):0 to 20.4 mA dc
Output load (maximum):735 Ω
Compliance voltage:18.0 V nominal at 20 mA dc at I/O field terminals
Output accuracy:±0.05% of span (25 °C) between 4-20 mA
Output temperature coefficient:100 ppm/°C
Settling time:100 ms to settle within 1% band of steady state for a 10 to 90% input step change
Linearity error:±0.05% of span
Resolution:12 bits
Fastest allowed ECB block period:100 msec
Power input voltage range (redundant):24 V dc (+5%, -10%)
Power consumption:7 W (maximum)
Heat dissipation:3 W (maximum)