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Saia-Burgess Controls AG
Manual
Manual PCD 1 / PCD 2 Series
│ Document 26
/
737 E
N22 │ 2013-11-26
CPUs and expansion housings
3-22
Expansion housings and bus cables
3
3.6.2 Expansion with PCD3 components
For local expansion, the PCD3 LIO (Local I/O) modules can be used:
PCD3.C200 4 plug-in I/O modules, integrated 24 V
DC
/ 5 V
DC
supply for
modules and signal refresh.
PCD3.C100 4 plug-in I/O modules
PCD3.C110 2 plug-in I/O modules
Frontview
Frontview
0
16
32
48
64
80
96
112
128
144
160
176
192
208
224
240
...1023
Bus extension cable
PCD2.M1xx and M4xx
PCD3.C100/200
Frontview
Frontview
For decentralized expansion, the PCD3 RIO (Remote I/O) modules can be used:
PCD3.T760 Integrated Profibus DP Slave / Profi S-Net Slave connection up to
max. 1.5 MBit/s
4 plug-in I/O cassettes
Integrated web server for diagnostics, support and comissioning
(Connection to PC via optional PCD3.K225 connector cable)
The maximum number of I/Os is dependent on the controller being used:
Saia PCD
®
type
Maximum number
PCD3 I/Os
Maximum number
I/Os per system
PCD2.M120/150
127
255
PCD2.M170
382
510
PCD2.M480
897
1023
PCD3.RIO nodes
256 per node
Determined by the maximum
size of the I/O process map
for DP Master
When selecting I/O cassettes, ensure that the internal 5 V and +V supply is not
overloaded.
Detailed information on planning combined PCD2/PCD3 systems can be found in the
PCD3 manual
26/789
.