System Introduction
2–1
1070 072 262-101 (01.09) GB
2
System Introduction
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.
2.1
Control Structure
The controller consists of a GG4-9 basic device. This mounting rack is pro-
vided with nine slots. The basic device must contain a power supply module
and at least one central processing unit. The remaining slots can be
equipped with additional CL550 system modules.
.
The ZS550-DP-IBS module necessitates two slots.
Basic device
NTx power supply
Fan
LAN module
CON550
Dummy front plate
ZS550 central
processing units