S5-100U Addressing
Example: Expanding from 14 to 18 slots
Figure 6-4. Expanding from 14 to 18 Slots
New bus units
The new bus units are added at
the right. The interface module
is moved correspondingly to the
right. The old slot numbers are
retained. Continue numbering
the new slots sequentially.
7
a
a
a
a
a
a
a
a
a
a
CPU
98 1110 12 13 1514 16 17
10 2 3 4 5 6
Existing configuration
98 1110 12 13
7
a
a
a
a
a
a
a
a
a
a
CPU
10 2 3 4 5 6
1110
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
CPU
10 2 7
8 9 12 13
98 1110 12 13 1514 16 17
3 4 5 6
The slot numbers of the old bus
units move to numbers 12 to 17.
The new slots are given the num-
bers 8 to 11.
Correct expansion procedure
Incorrect expansion procedure
EWA 4NEB 812 6120-02
6-3
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