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    　　FBM201/b/c/d Analog Input (0 to 20 mA, 0 to 100 mV, 0 to 5 V, 0 to 10 V dc) Interface Modules

       OVERVIEW

    　　Each FBM201/b/c/d Analog Input Interface Module contains eight analog input channels, each channel accepting a 2-wire, dc input from an analog sensor such as a 4 to 20 mA or 0 to 5V transmitter, or a selfpowered 20 mA source. The modules perform the signal conversion required to interface the electrical input signals from the field sensors to the optionally redundant fieldbus.

    　　COMPACT DESIGN

    　　The FBM201/b/c/d modules have a compact design, with a rugged extruded aluminum exterior for physical protection of the circuits. Enclosures specially designed for mounting the FBMs provide various levels of environmental protection, up to harsh environments per ISA Standard S71.04.

    　　HIGH ACCURACY

    　　For high accuracy, the modules incorporate sigmadelta data conversion on a per-channel basis, which can provide a new analog input reading every 25 ms, and a configurable integration period to remove any process noise and power-line frequency noise. Each time period, the FBM converts each analog input to a digital value, averages these values over the time period, and provides the averaged value to the controller

    　　EASY REMOVAL/REPLACEMENT

    　　The modules can be removed/replaced without removing field device termination cabling, power or communications cabling.

    　　VISUAL INDICATORS

    　　Light-emitting diodes (LEDs) incorporated into the front of the modules provide visual status indications of Fieldbus Module (FBM) functions.

    　　MODULAR BASEPLATE MOUNTING

    　　The modules mount on a modular baseplate (see Figure 1) which accommodates up to four or eight FBMs. The modular baseplate is either DIN rail mounted or rack mounted, and includes signal connectors for redundant fieldbus, redundant independent dc power, and termination cables.

    　　FIELDBUS COMMUNICATION

    　　A Fieldbus Communication Module or a Control Processor interfaces the redundant 2 Mbps module Fieldbus used by the FBMs. The FBM201/b/c/d modules accept communication from either path (A or B) of the redundant 2 Mbps fieldbus – should one path fail or be switched at the system level, the module continues communication over the active path.

    　Input Channel Isolation

    　　Each channel is galvanically isolated from all other channels and earth (ground). The module/TA withstands, without damage, a potential of 600 V ac applied for one minute between any channel and ground, or between a given channel and any other channel.

    Warehouse discount model recommendation:
EMERSON A6500-RC16
EMERSON A6500-TP
EMERSON A6500-TP
FOXBORO P0917XV
FOXBORO P0923DB
FOXBORO P0923NG
FOXBORO P0923ZJ
BENTLY 163179-01
BENTLY 3500/60 163179-01
BENTLY 3500/72M
BENTLY 176449-07