Rockwell-automation 1769-ADN Compact I/O 1769-ADN DeviceNet Adapter Manual de usuario Pagina 27

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Publication 1769-UM001B-EN-P - October 2002
How Communication Takes Place and I/O Image Table Mapping 2-3
The adapter status bit descriptions are shown in the following table.
Possible causes for an I/O Module Data Invalid are:
transmission errors on the Compact I/O backplane
a failed module
incorrect module inserted in a slot position
the configuration for an I/O module is invalid
The node address changed bit is set when the node address switch
setting has been changed since power up. The new node address
does not take affect until the adapter has been powered down and
then powered back up.
Bit Description
Word 0
Bit
Is set (1) when
I/O module data
is invalid for
slot position
Bit Description
Word 1
Bit
Is set (1) when
I/O module data
is invalid for
slot position
I/O Module
Data Invalid
01
I/O Module
Data Invalid
017
12 118
23 219
34 320
45 421
56 522
67 623
78 724
89 825
910 926
10 11 10 27
11 12 11 28
12 13 12 29
13 14 13 30
14 15 Node Address
Changed
14
1
-
15 16 Not Used 15
2
-
1 This bit is set (1) when the node address switch setting
has been changed since powerup.
2 Not used - sent as zeroes.
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