Allen-Bradley 1769-SDN - Page 66

Publication 1769-UM009B-EN-P - May 2002
5-6 DeviceNet I/O Image
Reserved Array
Device Status Array
The Device Status Array is a 64-byte array containing the information
shown in the following table. Each byte indicates the status code of
the scanner’s master and the slave devices.
Table 5.8 Reserved Array
Input Word
Description
(1)
(1)
DO NOT manipulate Reserved Bits. Doing so may interfere with future compatibility.
22 to 31 Always 0
Table 5.9 Device Status
Input Word Bit
Description
(1)
(1)
Status codes are defined in Table 8.2 on page 8-3.
32 0 to 7 (lower byte) Node 0 DeviceNet Status
8 to 15 (upper byte) Node 1 DeviceNet Status
33 0 to 7 (lower byte) Node 2 DeviceNet Status
8 to 15 (upper byte) Node 3 DeviceNet Status
... ... ...
63 0 to 7 (lower byte) Node 62 DeviceNet Status
8 to 15 (upper byte) Node 63 DeviceNet Status