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15 Device information
The device information is read via the command 0x2B (Read Device Identication)
Information about the manufacturer, device code and device version is read in the pro-
cess. The device supplies the “Basic Device Identication”. “Regular” and “Extended Device
Identication” are optional according to the Modbus denition.
Example Modbus RTU
Request:
01 2B 0E 01 00 70 77
in which
01 Device address
2B Command
0E MEI type according to the Modbus denition always 0x0E
01 Device ID code for “Basic Device Identication” (see Modbus denition)
00 Object ID -> in our example manufacturer name, product name and version
70 77 CRC code
Response:
01 2B 0E 01 01 00 00 03 00 08 4B 42 52 20 47 6D 62 48 01 12 6D 75 6C 74 69 63 6F 6D 70
20 46 31 34 34
2D 33 20 20 02 09 20 32 2E 30 30 72 30 31 36 CD DB
Data point description for the Modbus protocol