Rockwell Automation AADvance Controller Solutions Handbook - Manual (Page 85)

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Document: 553631
(ICSTT-RM447J_EN_P) Issue: 09:
5-5
Adding I/O Channel Capacity
You can specify a new controller to have the precise quantity of I/O channels that you
need and also configure spare I/O channels that you anticipate you may need in the
future. Having done this, it is possible add the hardware to expand the controller.
(Refer to the Technical Feature ―System Modification and Expansion‖)
Bus Connectors and Expansion Cable
The T9100 processor base unit command and response busses and system power for
I/O modules are output by the two connectors on each side of the base unit:
 The right-hand connector (designated IO bus 1 in the project tree configuration)
mates with a connector on the T9300 I/O base unit. IO bus 1 supports up to
eight I/O base units and up to 24 I/O modules.
 The left-hand connector (designated IO bus 2 in the project tree configuration),
mates with the T9310-02 Backplane Expansion Cable, which will connect it to a
further T9300 I/O base unit. IO Bus 2 supports up to 8 I/O base units and has
response lines for up to 24 I/O modules.
The expansion cable carries module power, command busses and individual response
busses for each I/O module.