Before you begin, Determine compatibility, Understand messaging – Rockwell Automation 1738-AENTR, Series B ArmorPOINT I/O Dual Port EtherNet/IP Adapter User Manual
Page 6: Configure autobaud
 
6 1738 ArmorPOINT I/O Dual Port EtherNet/IP Adapter
Publication 1738-IN030A-EN-P - July 2013
Before You Begin
To effectively use your adapter, note the following considerations.
Determine Compatibility
RSLogix
™
5000 version 17 or greater must be used for the 1738-AENTR Add-on Profile.
The 1738-AENTR adapters will accept I/O connections with electronic keying for the 
1738-AENT. This allows the 1738-AENTR adapter to be used in a daisy-chain topology 
with the 1738-AENT profile used for the 1738-AENTR. 
If using the adapter with a 1756-ENBT module, 1768-ENBT module or an L3xE 
processor, use the following required firmware versions for these bridge modules: 
•
1756-ENBT firmware version 4.5 or greater
•
1768-ENBT firmware version 2.1 or greater
•
L3xE processor firmware version 17 or greater
If you use the BootP/DHCP utility to assign IP addresses to the adapter, use version 2.3.2 
or greater.
Understand Messaging
Class 3 (Explicit Message) requests through the 1738-AENTR adapter to a specific 
ArmorPOINT I/O module do not always receive a response from the module. In the case 
where an ArmorPOINT module does not reply to a request, the adapter responds with an 
error code indicating a time-out.
Configure Autobaud
The adapter cannot reconfigure an I/O module that you previously configured to operate 
at a fixed baud rate. When you reuse an ArmorPOINT I/O module from another 
ArmorPOINT I/O system, configure the module to autobaud before using it with the 
adapter.