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VEGA VEGAPULS 61 (≥ 2.0.0 - ≥ 4.0.0) Profibus PA Approval according to LPR radio standard User Manual

Page 76

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l

AI FB

3 (OUT)

-

Out value of the AI FB3 after scaling

l

Free Place

-

This module must be used if a value in the data telegram of the cyclical data traffic 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 configuration software of the Profibus
master you can determine the configuration of the cyclical data telegram with these modules. The
procedure depends on the respective configuration software.

Note:
The modules are available in two versions:

l

Short for Profibus master supporting only one "Identifier Format"
byte, e.g. Allen Bradley

l

Long for Profibus master only supporting the "Identifier Format"
byte, e.g. Siemens S7-300/400

Examples of telegram configuration

In the following you will see how the modules can be combined and how the appendant data telegram
is structured.

Example 1

l

AI FB

1 (OUT)

l

AI FB

2 (OUT)

l

AI FB

3 (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 FB

1 (OUT)

AI F-
B

1

AI FB

2 (OUT)

AI F-
B

2

AI FB

3 (OUT)

AI F-
B

3

Example 2

l

AI FB

1 (OUT)

l

Free Place

l

Free Place

76

VEGAPULS

61 • Approval according to LPR radio standard

11 Supplement

41715

-EN

-120301