Publication 1734-UM011D-EN-P - May 2011
8 About the Adapter
Before You Begin
To effectively use your adapter, note the following considerations.
Determine Compatibility
If using the adapter with a 1756-ENBT module or 1788-ENBT module, use
the following required firmware revisions for these bridge modules:
• 1756-ENBT firmware revision 2.3 or later
• 1788-ENBT firmware revision 1.33 or later
If you use the BootP Utility to assign IP addresses to the adapter, use revision
2.3.2 or later.
Understand Messaging
Class 3 (Explicit Message) requests through the 1734-AENT adapter to a
specific POINT I/O module may not always receive a response from the I/O
modules. In the case where the I/O module does not reply to the request, the
adapter responds with an error code indicating a timeout.
Establish I/O Connections
When you apply power to a POINT I/O system and establish I/O
connections, the outputs transition to the idle state, applying idle state data
before going to RUN mode. This occurs even when the controller making the
connection is already in RUN mode.
Configure Autobaud
The adapter cannot reconfigure an I/O module that you previously configured
to operate at a fixed communication rate. When you reuse a POINT I/O
module from another POINT I/O system, configure the module to autobaud
before using it with the adapter.
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