Gossen R2601 Manual De Usuario
GOSSEN METRAWATT GMBH
13
2.4.3
Parameter index (PI)
The type of the data to be transmitted is defined via the parameter index. The "PI" character is interpreted as follows:
Functionally used data and/or setting parameters of an equipment are combined in the main parameter groups. Only those parameter indices docu-
mented in section 4 can be addressed in the R2600/01, an error message is issued for all others.
mented in section 4 can be addressed in the R2600/01, an error message is issued for all others.
2.4.4
Length and format of the data block
Length and format of the data block are variable and a function of PI and FF.
The transmitted values can have byte or word format:
The transmitted values can have byte or word format:
Bit 7-4
Bit 3-0
0 ... Fh
0 ... Fh
Selection number for main parameter group
Selection number for a special parameter in the main group
8 Bit
Number without sign
± 7 Bit
2's complement presentation
Number with sign
16 Bit
LS byte first
Number without sign
± 15 Bit
LS byte first, 2's complement presentation
Number with sign
8/16 Bit
LS byte first
Bit field