Vaisala CARBOCAP GMP231, Руководство пользователя, Страница: 62 / 92

Table 59 Get_Parameter_Info invoke message
Message segment Length Content
I
2
C address
1 byte
I
2
C address (write)
Command ID 1 byte Always 83
hex
Device address 1 byte See Table 46 (page 51) .
Frame length 1 byte Always 06
hex
.
Data 1 byte Parameter ID
Checksum 2 bytes See Checksum (page 52) .
Table 60 Get_Parameter_Info response message
Message segment Length Content
I
2
C address
1 byte
I
2
C address (read)
Status 1 byte See Status byte (page 51) .
Command ID 1 byte Always 83
hex
Device address 1 byte See Table 46 (page 51) .
Frame length 1 byte
Data 1 byte Parameter ID
1 byte Parameter datatype. See the following table.
1 byte Parameter length in bytes.
1 byte Parameter persistence. Describes if the parameter
value is volatile (lost at reset) or non-volatile
(survives reset). See
Table 62 (page 61) .
≥
8 bytes Parameter name. If name is shorter than 8 bytes,
extra bytes are filled with 00
hex
.
Checksum 2 bytes See Checksum (page 52) .
Table 61 Parameter data types
Code Meaning
0 Unknown parameter ID
1 Byte
2 Integer (16-bit)
3 Unsigned integer (16–bit)
GMP231 User Guide M211501EN-E
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