STAR
TUP / TROUBLESHOOTING
5-12
Hardware
and Installation User Manual
5.2.3.6 Status
W
or
ds Eleven to Eighteen (STW11–STW18)
Status Words 11 through 18 report the status of the I/O modules contained on
the
logical bases, as shown in Figure 5-6. Each bit corresponds to one module in
the
base. If the module is in proper working order or if there is no
module in that
slot, the corresponding bit is 0. If the occupied slot contains a malfunctioning
module,
the bit is 1. See the example shown in Figure 5-7.
The PLC reports an I/O mismatch — an installed module does not agree with
the I/O configuration — as a failed I/O module. The module has not actually
failed.
Y
ou should re-enter the I/O configuration for the slot in question.
123456 7891011 13141516
Bit Number (Status W
ords 1
1–18)
12
Slot
Slot
Slot
8
7
6
Slot
5
Slot
Slot
Slot
4
3
2
Slot
1
Slot
Slot
Slot
8
7
6
Slot
5
Slot
Slot
Slot
4
3
2
Slot
1
Logical Base B
Logical Base
A
Status W
ord
Logical Base B
Logical Base
A
Base
Base
Base
Base
Base
Base
Base
Base
Base
Base
Base
Base
Base
Base
Base
Base
11
12
13
14
15
16
17
18 15
13
11
9
7
5
3
1
14
10
12
8
6
4
2
0
Figure 5-6 Format of Status Words Eleven to Eighteen
(STW11–18)
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