FBM218 P0917XV - Communication Redundant Output Interface Module

Description

The Compact FBM218 module offers redundant modules for eight output channels, each providing a 4 to 20 mA output signal or a digital HART® signal superimposed on a 4 to 20 mA analog output signal (the signals are electrically compatible).  The Compact HART Communication Redundant Output Interface Module (FBM218) contains eight channel-isolated output channels.  The Compact FBM218 supports any mix of standard 4 to 20 mA devices and HART devices, and is part of the Compact 200 Series I/O subsystem described in Compact 200 Series I/O Subsystem Overview (PSS 41H-2COV). The Compact FBM218 can serve as a HARTcommunications field device host, enabling Foxboro™ DCS to request and receive two digital messages per second from the field device.  The message pass through capability can support HART universal, common practice, and device-specific commands, but it cannot support the burst communication mode.  These commands are implemented using the Foxboro DCS Field Device Expert for HART.  For more details, see Field Device Expert for HART Devices Control and I/O (PSS 41S-10FDMHRT).  The module provides an isolated power supply for each channel.

Features • 8 channel-isolated output channels, each providing one of the following outputs:  ◦ Standard 4 to 20 mA analog output signal  ◦ Digital HART Frequency Shift Keying (FSK) signal superimposed on a 4 to 20mA analog output signal • Module pair offers redundancy at the FBM level • FSK modem dedicated to each output channel for bi-directional digitalcommunications with a HART field device • Support for HART universal commands necessary to interface the field devicewith the Foxboro DCS • Galvanic isolation of all output channels from each other, from ground, and frommodule logic • Compact, rugged design suitable for enclosure in Class G3 (harsh) environments • Termination Assemblies (TAs) for locally or remotely connecting field wiring to theCompact FBM218

Redundant Analog Inputs If a failure is detected in one of the modules, its output is driven to 0 mA and thecorresponding channel in the good module automatically continues supplying theproper current to the output current loop. Each output channel drives an external load and produces a 0 to 20 mA output.Outputs are combined in series through the redundant adapter. The microprocessor ofeach module executes the analog I/O application program, plus security routines thatvalidate the health of the FBM. 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), FieldbusFail-Safe Enable, and Fieldbus Fail-Safe Delay Time. The Analog Output Fail-SafeFallback Data option must be set for 0 mA output. This removes one of the pair ofredundant output channels from service for detectable problems such as a module notproperly receiving output writes or not passing security tests on FBM microprocessorwrites to output registers. Setting of the Analog Output Fail-Safe Fallback Data optionfor 0 mA output also minimizes the possibility of a “fail high” result.

Main brands include: ABB, Bailey, GE, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, EMERSON EMERSON, B&R, MOTOROLA, FUANC, REXROTH, KUKA, HONEYWELL, NI, DEIF, Yokogawa, WOODWARD WOODWARD, Ryan, SCHNEIDER SCHNEIDER, Yaskawa, MOOG, EPRO, PROSOFT and other major brands

The company focuses on DCS, PLC, robot, large servo four systems

The main products are various modules/cards, controllers, touch screens, servo drivers Company advantage: Supply imported original products, professional production of spare parts One year warranty, fast delivery time, complete supply !！！ ① 24 hours email response (12 hours); ② For shipment outside Asia, please contact the seller.

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