1.6 Expansion Modules
There are two basic types of VersaMax I/O expansion systems, Multi-Rack and
Single-ended:
• Multi-Rack: A VersaMax PLC or NIU I/O Station with an Expansion Transmitter
Module (IC200ETM001) and one to seven expansion “racks”, each with an
Expansion Receiver Module (IC200ERM001 or IC200ERM002). If all the Expansion
Receivers are the Isolated type (IC200ERM001), the maximum overall cable length
is 750 meters. If the expansion bus includes any non-isolated Expansion Receivers
(IC200ERM002), the maximum overall cable length is 15 meters.
VersaMax PLC or I/O Station Main Rack (0)
• Single-ended: A CPU or NIU I/O Station connected directly to one expansion rack
with non-isolated Expansion Receiver Module (IC200ERM002). Maximum cable
length is 1 meter.
VersaMax PLC or NIU I/O Station Main Rack
1.6.1 VersaMax Modules for Expansion Racks
All types of VersaMax I/O and communications modules can be used in expansion racks.
Some VersaMax analog modules require specific module revisions as listed below:
Module Module Revision
IC200ALG320 B or later
IC200ALG321 B or later
IC200ALG322 B or later
IC200ALG430 C or later
IC200ALG431 C or later
IC200ALG432 B or later
Introduction GFK-1503E User Manual 27
For public disclosure
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