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FBM26 FOXBORO Fieldbus Expansion Module

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• 8 analog input channels, each accepting one of the following inputs:

◦ Standard 4 to 20 mA analog sensor signal

◦ Digital HART Frequency Shift Keying (FSK) signal superimposed on a 4 to 20 mA analog input signal

• FSK modem dedicated to each input channel for bi-directional digital communications with a HART field device

• Analog to digital conversion of each of the 4 to 20 mA input signals from the HART devices

• Support for the HART universal commands necessary to interface the field device with the Foxboro DCS database

• Per channel galvanic isolation of each of the 8 input channels from each other, ground and module logic

• Rugged design suitable for enclosure in Class G3 (harsh) environments

• High accuracy achieved by sigma-delta data conversions for each channel

• Termination Assembly (TA) for locally or remotely connecting field wiring to the FBM26

• TA for per channel internally and/or externally loop powered transmitters

FBM26 FOXBORO Fieldbus Expansion Module

Brand: Foxboro

Module: FBM26

Description: Fieldbus Expansion Module

Product Orgin: USA

Perfect protocol stack
General communication modules are developed according to the protocols provided by the manufacturer, so that they cannot meet the evolving needs of the communication field. So a good communication module should be able to support more types of protocols, such as: serial data transmission protocols: TCP/IP, UDP, etc. Wireless data transmission protocols: GSM, GPRS, 3G, etc.

The FBM26 connects to a single 10 Mbps or 100 Mbps copper Ethernet network to communicate with devices. The FBM26 is connected to Ethernet switches or hubs in order to communicate with one external device or up to 64 external devices. The general network configuration is shown in Figure 1.

Key features of the FBM26 are:

10 Mbps or 100 Mbps Ethernet network transmission rate to/from field device

Communicates with up to 64 field devices I/O software driver is downloadable from a library of available protocols

Up to 2000 DCI block connections

Integrates field device data into a Foxboro Evo control database using Ethernet connectivity

Field mounted

Class G3 (harsh) environments.

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