Vega FIBERTRAC 31 - Page 84

84
13 Supplement
FIBERTRAC 31 • Probus PA
43833-EN-170126
•
AI FB1 (OUT)
– Out value of the AI FB1 after scaling
•
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 trac 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 conguration software of the Probus
master you can determine the conguration of the cyclical data telegram with these modules. The
procedure depends on the respective conguration software.
Note:
The modules are available in two versions:
•
Short for Probus master supporting only one "Identier Format" byte, e.g. Allen
Bradley
•
Long for Probus master only supporting the "Identier Format" byte, e.g. Siemens
S7-300/400
Examplesoftelegramconguration
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.