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11 Supplement
POINTRAC 31 • Probus PA
43835-EN-131119
•
AI FB2 (OUT)
– Out value of the AI FB2 after scaling
•
AI FB3 (OUT)
– Out value of the AI FB3 after scaling
•
Free Place
– This module must be used if a value in the data telegram of the cyclical data trac should not
be used (e.g. replacement of temperature and Additional Cyclic Value)
A maximum of three modules can be active. By means of the conguration software of the Probus
master you can determine the conguration of the cyclical data telegram with these modules. The
procedure depends on the respective conguration software.
Note:
The modules are available in two versions:
•
Short for Probus master supporting only one "Identier Format" byte, e.g. Allen
Bradley
•
Long for Probus master only supporting the "Identier Format" byte, e.g. Siemens
S7-300/400
Examplesoftelegramconguration
In the following you will see how the modules can be combined and how the appendant data tel-
egram is structured.
Example 1
•
AI FB1 (OUT)
•
AI FB2 (OUT)
•
AI FB3 (OUT)
Byte-
No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
For-
mat
IEEE-754-Floating point
value
Sta-
tus
IEEE-754-Floating point
value
Sta-
tus
IEEE-754-Floating point
value
Sta-
tus
Value AI FB1 (OUT) AI
FB1
AI FB2 (OUT) AI
FB2
AI FB3 (OUT) AI
FB3
Example 2
•
AI FB1 (OUT)
•
Free Place
•
Free Place
Byte-No. 1 2 3 4 5
Format IEEE-754-Floating point value Status
Value AI FB1 (OUT) AI FB1
Note:
Bytes 6-15 are not used in this example.
Data format of the output signal
Byte4
Byte3
Byte2
Byte1
Byte0
Status Value (IEEE-754)
Fig. 20: Data format of the output signal
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