Allen-Bradley 1769-SDN, Installation Instructions Manual, Page: 58 / 68

58 Rockwell Automation Publication DNET-IN001B-EN-P - January 2012
Appendix B 1769 DeviceNet Modules Status Indicators and Data Structures
1769-ADN Adapter Data
Structures The scanner uses the input and output data images to transfer data, status, and
command information between the adapter and the scanner.
Input Data
This is the I/O data the 1769-ADN adapter sends to the DeviceNet master. All
inputs are in words.
Output Data
This is the I/O data the DeviceNet master sends to the 1769-ADN adapter. All
outputs are in words.
Wo
rd
Bit Position
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 V16 V15 V14 V13 V12 V11 V10 V9 V8 V7 V6 V5 V4 V3 V2 V1
1 X NS V30 V29 V28 V27 V26 V25 V24 V23 V22 V21 V20 V19 V18 V17
2 Input data for slot 1
(1)
(1) The amount of input data for each module is based on the configuration of each I/O module done as part of the
1769-ADN configuration. Note that if an I/O module is configured to have 0 words of input data, then there are
no input data words for that module in the 1769-ADN adapter’s input image.
V1 = Data invalid from slot 1 (1 = invalid data)
V2 = Data invalid from slot 2
V3 = Data invalid from slot 3
…
V30 = Data invalid from slot 30 where 1 = data invalid or a module error is detected; 0 = data valid, no module error
NS = Node address switch changed where 1 = node address switch changed since power-up
X = Reserved
3 “
“ “
n Input data for slot 30
(1)
Wo
rd
Bit Position
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 Output data for slot 1
(1)
(1) The amount of output data for each module is based on the configuration of each I/O module done as part of the
1769-ADN configuration. Note that if an I/O module is configured to have 0 words of output data, then there are
no output data words for that module in the 1769-ADN adapter’s output image.
1 “
“ “
n Output data for slot 30
(1)