Emerson Rosemount 2460, Reference Manual

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Modbus
®
Standard Question
Modbus
®
Standard Question
October 2018
Reference Manual
00809-0100-2460, Rev DE
F.5 User defined Modbus mapping
The system hub can be configured for a user defined Modbus map. This is useful when connecting to a
third party host without changing the host configuration.
The 64 tank values in the system hub will be mapped to the User Defined Modbus Server Input Register
Modbus interface. This is a file that can be created from a MS Excel spread sheet and uploaded to the
system hub.
Figure F-1. User Defined Modbus
1. In the Web interface, click the Download Template button to download a MS Excel template file
(UserDefinedModbusServer.xlsm).
2. In the Excel template file, edit the desired registers or add new registers.
3. Save the file.
4. From the template file, create a new register map file by clicking the Export to map file
userdefined_regmap.ini button.
5. In the Web interface, upload the userdefined_regmap.ini file to the system hub by clicking the Upload
button.
Upload and download register map file
The Download button lets you download the current Modbus register file in case you would like to edit
or save a backup copy.
The Upload button lets you upload a Modbus input register *.ini file to the system hub register area.
Download Excel template file
The Download Template button lets you download a file in MS Excel format to be used as a template for
editing and creating a Modbus register map file. Once the Excel file is edited you can create a new User
Defined Modbus register map*.ini file which can be uploaded to the system hub.