FBM231 FOXBOROOVERVIEW
A pair of FBM231 modules combine to provide
redundancy at the Fieldbus Module (FBM) level, with
field wiring to two termination assemblies (see
Figure 1). In this configuration, one FBM231 is the
Master, and the other is the Tracker module. Input
points on the control station are updated from the
device inputs received on the network connected to
the Master. Device output points, depending on the
I/O driver, are written by both the Master and Tracker
module. Role switching is automatic if actual
problems are detected (for example, heartbeat) by
the I/O driver, or the user can switch the roles at any
time via SMDH.
The FBM231 has four ports – each can be
individually configured in software for RS-232,
RS-422 or RS-485. This allows a single FBM231
the flexibility to connect to multiple similar but not
identical devices. Ports 1, 2, 3, and/or 4 can be
configured as a single logical port with redundant
cables allowing you to interface with dual-ported I/O
devices within your plant. The general network
configurations are shown in Figure 1.
describe
Foxborough FBM231
Extended product type: PLC
Product number: FBM231
Foxboro type name: PLC
Foxboro FBM231 specifications
Series: I/A Series
Product type: Communication output module
Input voltage range: 24 V dc+5%, -10%
Dimensions: 4.5cm x 11.5cm x 11cm
Weight: 0.36 kg
CONFIGURATOR
The FDSI configurator sets up the FBM231 port via
XML based device configuration files. The port
configurator allows for easy setup of the
communication parameters for each port (such as,
communication interface standard, baud rate, parity).
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).
