GFK-1504K
Chapter 1 Introduction
1-15
1
Expansion Modules
There are two basic types of VersaMax I/O expansion systems, Multi-Rack and Two-Rack
Local:
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.
PS
CPU/NIU
PS
ERM
PS
ERM
ETM
VersaMax ExpansionRack 1
Terminator
Plug
15M with any
IC200ERM002 ERMs
750M with all
IC200ERM001 ERMs
VersaMax PLC or I/O Station Main Rack (0)
VersaMax ExpansionRack 7
IC200CBL601,
602, 615
Two-Rack Local:
A PLC or NIU I/O Station connected directly to one expansion
rack with non-isolated Expansion Receiver Module (IC200ERM002). Maximum cable
length is 1 meter.
PS
ERM
VersaMax Expansion Rack
1 M
VersaMax PLC or NIU I/O Station Main Rack
PS
CPU/NIU
IC200CBL600
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