Converter Profibus From/To Internal Notation - BONFIGLIOLI ACTIVE Cube ACU 201-01 Operating Instructions Manual

18.9

Converter Profibus from/to Internal Notation

The Converter Profibus/Internal notation can convert a 16 bit Word into an internal
32 Bit frequency value and vice versa. This is useful in example, when several devic-
es are linked together via Systembus and for commercial reasons only one device is
equipped with a Profibus Option. Through the routing of the Profibus Word via the
Systembus ("Tunneling") the necessary bandwidth can be reduced and the parame-
terization of the "Gateway" (Systembus Master with Profibus Slave communication)
be simplified. The converter is used in this case in a device without Profibus module
to convert the Profibus Notation into an internal reference value.
No.
1370 In-F-PDP-word 1
1371 In-F-PDP-word 2
1372 In-F-intern long 1
1373 In-F-intern long 2
1374 In-F-Convert Reference
A similar procedure can be used to convert in example the Actual Frequency into a
value according to Profibus notation.
The converter can also be used for other purposes, in example when using the inter-
nal PLC programming.
In-F-PDP-word 1
into the internal Frequency. 0x4000 in Profibus-Notation (=100 %) refers to
Convert Reference
In-F-intern-long 1
value into Profibus Notation. 0x4000 in Profibus-Notation (=100 %) refers to
Convert Reference
The Profibus Notation is limited to values from -200 % (0x8000) to +200 %
(0x7FFF).
0x4000
0x7FFF
0x8000
0xC000
The values converted this way can be used as internal source.
774 – Out-F-PDP-Conv1-long1 as output of
In-F-PDP-word 1
775 – Out-F-PDP-Conv1-long2 as output of
In-F-PDP-word 2
776 – Out-F-PDP-Conv1-word1 as output of
In-F-PDP-long 1
777 – Out-F-PDP-Conv2-word2 as output of
In-F-PDP-long 2
256
Parameter
Description
1370 and
In-F-PDP-word 2
1374 in Hz.
1372 and
In-F-intern-long 2
1374 in Hz.
= 100 % =
In-F-Convert Reference
= 200 % =
2x In-F-Convert Reference
= -200 % = -
2x In-F-Convert Reference
= -100 % = -
In-F-Convert Reference
1370 (Profibus-Not.  Frequency)
1371 (Profibus-Not.  Frequency)
1372 (Frequency  Profibus-Not.)
1373 (Frequency  Profibus-Not.)
Operating Instructions ACU
Settings
Min. Max.
Selection
Selection
Selection
Selection
0.01 Hz 999.99 Hz
1371 convert the Profibus Notation
1373 convert an internal frequency
1374
1374
1374
1374
Fact. sett.
50.00 Hz
In-F-
In-F-
06/13