Rockwell Automation 1734-ADNX POINT I/O DeviceNet Adpater User Manual - Manual (Page 33)

Publication 1734-UM002C-EN-P - July 2003
What is the 1734-ADN(X) Adapter? 2-13
Auto Address
The EDS parameter Auto Address is available from the primary
DeviceNet and lets the user sequentially order the node addresses of
backplane I/O modules. This parameter is not a mode but occurs on a
single occurrence only. The node address selected is assigned to the
module closest to the adapter. The next closest module is assigned the
next numerically higher value. The numbering pattern continues for
all connected backplane I/O modules.
Enable this parameter in the RSNetWorx for DeviceNet software.
Physical List Acquire Status
Physical List Acquire Status shows the status of the Physical List
acquire process. The adapter maintains a Physical List that indicates
the order of the node addresses of all POINT I/O modules present on
the backplane.
The adapter requires that each backplane I/O module has a MAC ID
greater than that of its neighbor to its immediate left. The list is
created at power-up and each time a module is inserted on the
backplane.
The valid values are:
• IDLE
• BUSY
• AUTO START MODE
IMPORTANT
Changes to the Auto Address parameter only take
effect if they are downloaded on an individual basis
(e.g., If you enable the Auto Address and download
the changes with additional changes to other
features, the node addresses of the I/O modules
remain at the previous settings).
This parameter should be set to “Do Nothing” when
you download all parameters or when Automatic
Device Replacement is enabled for the adapter.