Product introduction：

Features
The Compact FBM237, 0to 20 mAOutput Interface Module contains eight channel
isolated 0 to 20 mA dc analog output channels. The outputs are galvanically isolated
from other channels and ground. The module can be used as a single unit, or as a
redundant pair.

Whenusedasaredundant pair, the modules combine to provide redundancy at the
Fieldbus Module (FBM) level, with field output signals wired to one common
termination assembly (see Figure 1). Each module in the pair independently attempts
to hold the output(s) at its specified output value(s).

• Eight 20 mAdcanalog output channels
• Eachoutput channel is galvanically isolated
• Single or redundant modules
• Compact,rugged design suitable for enclosure in Class G3 (harsh) environments
• Termination Assemblies (TAs) for locally or remotely connecting field wiring to the
Compact FBM237
• TAforusewith Output Bypass Station to maintain outputs during maintenance
operations
• 3-tier termination assembly for per channel internally and/or externally loop
powered transmitters
• Electrically compatible with standard HARTsignals

FBM237

Redundant Analog Outputs
Whenusedasaredundant pair, each channel is connected to the same point number
in each FBM. Then a redundant analog output block, AOUTR, is used for each
redundant pair of outputs. The AOUTR block handles output writes and initialization
logic for the redundant channels. On each execution cycle of the AOUTR block,
identical reads are sent to each module, fully exercising the fieldbus and the logic
circuitry of each module. When a failure is detected in one of the modules, its output is
driven to 0 mA and the corresponding channel in the good module automatically
continues supplying the proper current to the output current loop.
Each output channel drives an external load and produces a 0 to 20 mA output.
Transmitter power from each module is diode OR’d together in the redundant adapter
to help ensure redundant power. The microprocessor of each module executes the
analog I/O application program, plus security routines that validate the health of the
module.

Configurable options in the modules for output security include Fail-Safe Action (Hold/
Fallback), Analog Output Fail-Safe Fallback Data (on a per channel basis), Fieldbus
Fail-Safe Enable, and Fieldbus Fail-Safe Delay Time. The Analog Output Fail-Safe
Fallback Data option must be set for 0 mA output. This removes one of the pair of
redundant output channels from service for detectable problems such as a module not
properly receiving output writes, or not passing security tests on FBM microprocessor
writes to output registers. Setting of the Analog Output Fail-Safe Fallback Data option
for 0 mAoutput also minimizes the possibility of a “fail high” result

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✔✔✔About Chengdu Sunshine Xi He

Chengdu Sunshine Xi He Electric Co., Ltd. specializes in selling the world’s major electrical brand products overseas direct procurement,

genuine inventory, price preferential after-sales warranty, complete models, the same product, not the same price and service.

Large supply of original imported DCS system accessories, PLC system accessories.

Main :ABB, GE Fanuco, Bentl Bentley, Triconex Invensys, Woodward Woodward, Foxboro, Foxboro,

Westinghouse /Emerson, Reliance Ryan, SchneiderModicon, A-B, HIMA dark horse, Motorola MOTOROLA,

Kollmorgen Kollmorgen Bosch/Rexroth/ Bosch Rixon, NI,YOKOGAWA Yokogawa, and other major brands of DCS system accessories,

robot system accessories, large servo system discontinued spare parts.

✔✔✔Our advantage

1.Deep discount

2.Special price, limited time special price

3.Fast delivery and one year warranty!

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✔✔✔How to ship?

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≈We can ship all over the world through SF Express and Federation.The packing is very strong.

If you have any special needs, please let me know

≈You can expect to receive the item approximately 7 days after we send it.