Rockwell Automation 1757-SWKIT3200 ProcessLogix R320.0 Installation and Upgrade Guide - Manual (Page 227)

Publication 1757-IN032B-EN-P - April 2001
New Functions and Features 6-11
Bristol Babcock OpenBSI Interface
ProcessLogix has been enhanced in this release to include a Bristol
Babcock OpenBSI interface. The interface allows communication with
network connected RTU’s via TCP/IP. The Bristol Babcock OpenBSI
Interface requires OpenBSI v3.2 software to be installed on the
ProcessLogix Server.
ProcessLogix requires updated versions of bsi32.dll and bslpdrv.exe to
those delivered with OpenBSI v3.2. These updates have been
included in an OpenBSI directory on the ProcessLogix CD. The
updates should be installed in the OpenBSI folder on the
ProcessLogix Server after OpenBSI v3.2 has been installed. It is
anticipated that Bristol Babcock will include these updates in future
versions of the OpenBSI software.
Additional Modicon Data Formats
The Modicon Interface supports the following new 32 bit integer data
formats
•
S32B
•
U32B
•
S32BS
•
U32BS
The Modicon Interface will combine two 16-bit registers (as defined
by the Modbus protocol standard) into a 32-bit value.
These data formats assume the following word/byte order:
•
two 16-bit registers in big endian byte order
•
the first register transmitted is the low word
•
the second register transmitted is the high word
The value is calculated as (high register x 65536) + low register