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2
System Overview CL550
2.1
Controller Structure
Basic device
NTx power supply
Fan
1070 072 263-101 (01.08) GB
The CL550 is an open multiprocessor system with up to six democratic cen-
tral units. Each central unit constitutes a closed control unit with all data
areas and the entire I/O address range. Communication among the modules
is processed via Ethernet.
A CL550 must contain:
D GG4-9 mounting rack
D an NTx power supply
D a ZS550 or ZS550-DP-IBS central processing unit
D a fan
.
The ZS550-DP-IBS module necessitates two slots.
The remaining slots can be equipped with additional CL550 system mod-
ules.
System Overview CL550
LAN module
CON550
Dummy front plate
ZS550 central
processing units
2–1
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