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Ethernet Interface
combiSENSOR 64x0
6.2
Data Format of Measuring Values
All measuring values, recorded at a time, are combined into a measuring value frame (One measuring value
per channel).
Several measuring value frames are combined to a measuring value block and then transmitted together with
a header as a TCP packet.
All measuring values and the header are transmitted in little-endian format.
Contents
Size
Description
Preamble
32 bit
„MEAS“ as an ASCII text
Order number
32 bit
Order number of sensor as int
Serial number
32 bit
Serial number of sensor as int
Channels
(Bit field)
64 bit
Bit field, which channel available. Two bits per channel are used:
„00“= Channel is not available; „01“=channel available. The low-
est channel is on the most low-order bit ->Thereby determining the
number of channels N possible.
Status
32 bit
Is not used.
Frame number M / bytes
per frame
16 bit /
16 bit
One frame = one measuring value per channel
Measuring value counter
32 bit
Measuring value counter (of 1st frame)
Measuring value frame 1
[number channels N]
N *
32 bit
Measuring values all channels, starting with the lowest channel
number
Measuring value frame 2
[number channels N]
N *
32 bit
„
....
...
...
Measuring value frame M
[number channels N]
N *
32 bit
„
All measuring values are transmitted as Int32. The measuring value resolution is 24 bits i.e only the most low-
order 24 bits of integer number are used. Hexadecimal range: 0 ... FFFFFF
16
.
