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Place, Configure, and Monitor I/O
53
In this example, the I/O modules 12...30 could be arranged in
any way so long as the power supplies’ capacity was not
exceeded. In other words, the first additional bank could contain
fewer than sixteen I/O modules This is just one possible
arrangement.
Example of Multi-Bank System
Original Banks 0 and 1
1769-L35x
Processor
1
2
3
Power
Supply
17
18
19
Power
Supply
4
5
6
7
8
9
10
11
End
Caps
Additional
Banks
12
13
14
15
16
Additional
Banks
End
Cap
28
Power
Supply
29
20
21
22
23
24
25
26
27
I/O modules are numbered 1....30
30
4. Verify that all banks have end caps.
IMPORTANT
If you place and configure more I/O modules and I/O banks
than your controller can support, your system may run well
for a period of time. Nothing alerts you to the fact that you
have exceeded your controller’s capacity.
However, by exceeding your controller’s I/O capacity, you
put your system at risk of intermittent faults, the most
common being Major Fault Type 03 (I/O Fault) Code 23.
Publication 1769-UM011F-EN-P - January 2007