Vaisala GMP231 - Manual (Page 60)

User's Guide _______________________________________________________________________
58 ___________________________________________________________________ M211501EN-C
Commands
Get_Interface_Version
Get_Interface_Version command (ID 80h) reads the interface version
information. This command is recommended for verifying version
compatibility before reading or writing parameters.
Table 19 Get_Interface_Version Invoke Message
Message Segment Length Content
I
2
C address 1 byte I
2
C address (write)
Command ID 1 byte Always 80h
Device address 1 byte See Table 13 on page 51
Frame length 1 byte Always 05h
Checksum 2 bytes See section Checksum on page 56
Table 20
Get_Interface_Version Response Message
Message Segment Length Content
I
2
C address 1 byte I
2
C address (read)
Status 1 byte See section Status Byte on page 56
Command ID 1 byte Always 80h
Device address 1 byte See Table 13 on page 51
Frame length 1 byte Always 0Ah
Data 1 byte Device version
1 byte Protocol frame version
1 byte Command set version
1 byte Parameter set version
Checksum 2 bytes See section Checksum on page 56