Rockwell Automation 1788-DNBO DeviceNet Daughtercard Installation Instructions User Manual
Page 13

DeviceNet Daughtercard 13
Publication 1788-IN053A-EN-P - December 2001
The status structure consists of these data elements:
Status Structure Element
Description
Data Type
DINTS
ScanCounter
counter incremented each I/O scan
32-bit
10
DeviceFailureRegister
device failed bit table; 1 = failed
64-bit
AutoverifyFailureRegister
device I/O size does not match scanner’s internal
table; 1 = mismatch
64-bit
DeviceIdleRegister
device is idle bit table; 1 = idle
64-bit
ActiveNodeRegister
node online bit table; 1 = online
64-bit
StatusDisplay
ASCII representation of status
4-byte
ScannerDeviceStatus
Scanner device status:
4-byte binary
11
ScannerAddress
DeviceNet address of 1788-DNBO daughtercard
8-bit binary
ScannerStatus
status of 1788-DNBO daughtercard
8-bit binary
ScrollingDeviceAddress
scrolls through DeviceNet nodes once per second
by address and status (0 = no faults).
8-bit binary
ScrollingDeviceStatus
8-bit binary
ReservedArray
future expansion (20 bytes)
20 x 8-bit
16
DeviceStatus
DeviceNet node status array, byte per device
64 x 8-bit
24/32