GE 90-30 PLC Series Installation And Hardware Manual page 35

1
Then add a CPU module. A CPU module can only mount in baseplate slot 1, next to the power
supply. Slot 1 has a unique connector that will only fit CPU or special Option modules.
Figure 1-3. CPU Module
To finish, we will add some I/O modules to baseplate slots 2 through 5.
Figure 1-4. I/O Module
1-4 Series 90-30 PLC Installation and Hardware Manual – August 2002
CPU331
A1 2 3 4 5 6 7 8
F
B1 2 3 4 5 6 7 8
A1
A2
A3
A4
A5
A6
A7
A8
B1
B2
B3
B4
B5
B6
B7
B8
GFK-0356Q