FBM233 FOXBOROOVERVIEW
Each FBM233 module has a single 10/100Mbpscopper Ethernet connection and a single RJ-45connector on the front of the module for connectivityto dual-ported Ethernet devices. The FBM233 is
connected to Ethernet switches or hubs in order tocommunicate with one external device or up to 64external devices.A pair of modules combine to provide redundancy atthe Fieldbus Module (FBM) level. In this configuration,one FBM233 is the Master, and the other is theTracker module. Input points on the control stationare updated from the device inputs received on thenetwork connected to the Master. Device outputpoints, depending on the I/O driver, are written byboth the Master and Tracker module. Role switchingis automatic if problems are detected (for example,loss of heartbeat from any device) by the I/O driver,or the user can switch the roles at any time viaSMDH.
CONFIGURATOR
The FDSI configurator sets up the FBM233 port and
XML based device configuration files. The port
configurator allows for easy setup of the
communication parameters for each port (such as,
Dynamic Host Configuration Protocol (DHCP),
IP addresses). The device configurator is not needed
for all devices, but when needed it configures device
specific and point specific considerations (such as,
scan rate, address of the data to be transferred, and
the amount of data to be transferred in one
transaction).
OPERATIONS
Each FBM233 pair can access up to 64 devices to
read or write data.
From the Foxboro Evo control station to which the
FBM233 is connected (refer to Figure 1), up to 2000
Distributed Control Interface (DCI) data connections
can be made to read or write data. Supported data
types are determined by the particular driver loaded
on the FBM233, which converts the data to the DCI
data types listed below:
An analog input or output value (integer or IEEE
single-precision floating point)
A single digital input or output value
Multiple (packed) digital input or output values
(packed in groups of up to 32 digital points per
connection
The FBM233 Redundant Field Device System Integrator (FDSI) module provides an Ethernet interface
between single or dual-ported field I/O devices and the Foxboro Evo™ system.
