Issue
Customers want to read the device identification of the BMENOC modules to publish this data in their SCADA and this resolution identifies the right configuration of the DATA_EXCH to read this info by Modbus TCP using a Function Code/Subcode .
Product Line
Ecostruxure Control Expert, M580, BMENOC0301, BMENOC0311, BMENOC0321
Environment
Control Expert v14.1, Windows 10 version 1902 (OS Build 18362.30), BMEH586040 v2.90, BMENOC0301 v2.17
Resolution
A Modbus request associated with function code 43 asks the Modbus server BMENOC modules to return vendor name, product name, version number, and other optional fields for the device identification:
Using the table above, you can create a Modbus Explicit message using DATA_EXCH to read this information. The example below is to read the device information of a BMENOC0301 (IP address 192.168.10.10) located on slot 2 of the backplane, using ST language and you can use it as a guide for your own logic.
The result is the information below.
P.S.: Additional information can be found on pages 142/265 of the Ethernet Communications Module Installation Guide and on page 42 of the Modbus Application Protocol Specification.
Customers want to read the device identification of the BMENOC modules to publish this data in their SCADA and this resolution identifies the right configuration of the DATA_EXCH to read this info by Modbus TCP using a Function Code/Subcode .
Product Line
Ecostruxure Control Expert, M580, BMENOC0301, BMENOC0311, BMENOC0321
Environment
Control Expert v14.1, Windows 10 version 1902 (OS Build 18362.30), BMEH586040 v2.90, BMENOC0301 v2.17
Resolution
A Modbus request associated with function code 43 asks the Modbus server BMENOC modules to return vendor name, product name, version number, and other optional fields for the device identification:
Using the table above, you can create a Modbus Explicit message using DATA_EXCH to read this information. The example below is to read the device information of a BMENOC0301 (IP address 192.168.10.10) located on slot 2 of the backplane, using ST language and you can use it as a guide for your own logic.
The result is the information below.
P.S.: Additional information can be found on pages 142/265 of the Ethernet Communications Module Installation Guide and on page 42 of the Modbus Application Protocol Specification.
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