Hach-lange ORBISPHERE K1100_M1100 Operator Manual Manuel d'utilisateur télécharger pdf (Page 80)

Communication Menu

9.2.2 Input/Output data

The main board:

• Writes the latest measurement data to the Profibus Input Buffer.

• Checks if a command written by the Profibus Master must be executed (Profibus Output

Buffer). If a command is to be executed, the instrument executes it and writes the result

(status, data, etc.) in the Profibus Input Buffer.

All numbers are coded in “Big Endian” format, and float values are coded according to IEEE

Standards. The field types “Byte” and “Double Word” are unsigned.

Measurements

Measurements are formatted in the Profibus Input Buffer as follows:

Name Type Size Offset

Barometric pressure Input float 32 bits 0

Barometric pressure unit Input byte 8 bits 4

Channel 1 gas concentration Input float 32 bits 5

Channel 1 gas unit Input byte 8 bits 9

Channel 1 temperature Input float 32 bits 10

Channel 1 temperature unit Input byte 8 bits 14

Channel 1 external pressure Input float 32 bits 15

Channel 1 external pressure unit Input byte 8 bits 19

Channel 1 events Input double word 32 bits 20

Channel 1 measurement index Input double word 32 bits 24

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 113 114

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Hach-lange ORBISPHERE K1100_M1100 Operator Manual Manuel d'utilisateur Page 80