Rockwell Automation 1769-SDN Compact I/O DeviceNet Scanner Module User Manual - Manual (Page 97)

Publication 1769-UM009E-EN-P - August 2009 97
DeviceNet I/O Image Chapter 6
Active Node Register
The Active Node array contains 64 bits of data that represents each slave
node’s status. A slave node is considered active when it is present and enabled
in the master’s scanlist. A bit value of 0 means Not Active, a bit value of 1
means Active.
Status Display
The Status Display is a 4-byte array of the 1769-SDN display.
Scanner Address
The Scanner Address is the scanner’s DeviceNet node number.
Scanner Status
The Scanner Status is the scanner’s DeviceNet status.
Scrolling Device Address
The Scrolling Device Address is the DeviceNet address and status of node
with errors. The data updates once per second, scrolling through all nodes with
errors.
Slave Node Status
Input Word Bit 0...15 Description
14
(1)
(1) Bit 0 corresponds to Node 0, Bit 1 corresponds to Node 1 … Bit 15 corresponds to Node 15.
Node 0…15 Bit ON (1) = Active node
Bit OFF (0) = Inactive node 15
(2)
(2) Bit 0 corresponds to Node 16, Bit 1 corresponds to Node 17 … Bit 15 corresponds to Node 31.
Node 16…31
16
(3)
(3) Bit 0 corresponds to Node 32, Bit 1 corresponds to Node 33 … Bit 15 corresponds to Node 47.
Node 32…47
17
(4)
(4)
Bit 0 corresponds to Node 48, Bit 1 corresponds to Node 49 … Bit 15 corresponds to Node 63.
Node 48…63