The baseplates are backwards compatible with

existing I/O subsystems allowing for future expansion

without additional interface hardware and includes

the following:

 Primary and secondary 24 V dc power

connections

 Two Module Fieldbus connections (for A/B

Module Fieldbus daisy chain)

 Power/communication connection and field I/O

connection for each FBM

 DIP switch for baseplate identification

 A/B Module Fieldbus and optional time strobe

splitter/terminator connection

 Adding additional baseplates without removing

the system from service (requires redundant

Module Fieldbus).

The baseplates which support FBMs provide

increased overall system installation functionality by

providing unit increments of 2. 4. and 8 module

positions with various operational functionality in

combination with vertical and horizontal mounting.

Any FBM (except FBM232/233) can be removed

from a FBM-supporting baseplate without removing

or disturbing external field device wire terminations or

internal cable terminations or connections.

FCPs and FCMs require removal of wiring to the

control network.

Shielded twisted-pair cables for baseplate

interconnections are available in various lengths of

0.25 m (10 in) up to 60 m (198 ft). The maximum

twisted-pair cable length interconnecting all

baseplates is 60 m (198 ft).

Figure 1 shows selected vertical DIN rail mounted

baseplates. Horizontal DIN rail mounted baseplates

are available in similar styles as the vertical mounted

baseplates, but equivalents for each style are not all

available. Refer to PSS 31H-2SBASEPLT and

PSS 31H-2C200 B4 for additional information on the

remaining Standard and Compact 200 Series

baseplates.