VEGA VEGABAR 81 Modbus and Levelmaster protocol - Operating Instructions - Manuale (Pagina 71)

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10 Appendice
VEGABAR 81 • Protocollo Modbus e LevelMaster
46293-IT
-131205
Parametro Length Code/Data
Sub Function Code 2 Bytes 0x0000 to 0xFFFF
Data 2 Bytes 0x01 to 0x7B
FC17 Report Slave ID
Con questo codice di funzione può essere richiesta la slave ID.
Request:
Parametro Length Code/Data
Function Code 1 Byte 0x11
Response:
Parametro Length Code/Data
Function Code 1 Byte 0x11
Byte Number 1 Byte
Slave ID 1 Byte
Run Indicator Status 1 Byte
FC43 Sub 14, Read Device Identification
Con questo codice di funzione può essere richiesta la Device Identification.
Request:
Parametro Length Code/Data
Function Code 1 Byte 0x2B
MEI Type 1 Byte 0x0E
Read Device ID Code 1 Byte 0x01 to 0x04
Object ID 1 Byte 0x00 to 0xFF
Response:
Parametro Length Code/Data
Function Code 1 Byte 0x2B
MEI Type 1 Byte 0x0E
Read Device ID Code 1 Byte 0x01 to 0x04
Confirmity Level 1 Byte 0x01, 0x02, 0x03, 0x81, 0x82, 0x83
More follows 1 Byte 00/FF
Next Object ID 1 Byte Object ID number
Number of Objects 1 Byte
List of Object ID 1 Byte
List of Object length 1 Byte
List of Object value 1 Byte Depending on the Object ID