82
Communication Menu
10.2.2 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:
Note:
The table above shows information for a 2-channel instrument. This will be adjusted according to the
number of channels in use.
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
Channel 2 gas concentration
Input float
32 bits
28
Channel 2 gas unit
Input byte
8 bits
32
Channel 2 temperature
Input float
32 bits
33
Channel 2 temperature unit
Input byte
8 bits
37
Channel 2 external pressure
Input float
32 bits
38
Channel 2 external pressure unit
Input byte
8 bits
42
Channel 2 events
Input double word
32 bits
43
Channel 2 measurement index
Input double word
32 bits
47
Summary of Contents for Orbisphere 51 Series
Page 5: ...4 Table of Contents...
Page 19: ...18 Specifications...
Page 48: ...47 Section 6 View Menu Figure 33 View menu...
Page 52: ...51 Section 7 Measurement Menu Figure 36 Measurement menu...
Page 66: ...65 Section 9 Inputs Outputs Menu Figure 40 Inputs Outputs menu...
Page 68: ...67 Inputs Outputs Menu 9 4 Analog outputs Figure 41 Analog outputs menu...
Page 75: ...74 Inputs Outputs Menu...
Page 91: ...90 Communication Menu...
Page 94: ...93 Section 12 Products Menu Figure 44 Products menu...
Page 97: ...96 Global Configuration Menu...
Page 98: ...97 Section 14 Services menu Figure 46 Services menu Part 1...
Page 99: ...98 Services menu Figure 47 Services menu Part 2...
Page 103: ...102 Services menu...
