Rockwell Automation 1756-DH485 ControlLogix DH-485 Communication Module User Manual - Manual (Page 43)

Publication 1756-UM532A-EN-P - May 2006
Use Data Highway 485 Network 3-11
Configuration Information
in DH-485 Messaging When you are doing DH-485 messaging, you must first set up the
1756-DH485 module configuration. The following configuration information
is stored in the non-volatile (NVS) memory on your 1756-DH485 module
when you configure the module using RSLinx software.
• Any routing table that may be needed to send DH-485 messages
through the module. - This information must be applied to the module’s
configuration separately from other information. Use RSLinx to apply
the routing table.
For more information about routing tables, see the section Use RSLinx
Software to Create a Routing Table in Chapter 4.
• Controller slot assignment for each DH-485 channel.
Refer to Set the Controller Slot on page 4-8 for more information on
local messaging.
• The node number of the module.
IMPORTANT
If you restore defaults with RSLinx software, the slot
number will remain the 1756-DH485 module’s non-volatile
memory, but the routing table and the controller slot for
both DH-485 channels will be reset.