Programmable Field Bus Controller 750-833
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Programming of the PFC with WAGO-I/O-PRO
WAGO-I/O-SYSTEM 750
Bus System
3.5.2.2 Transmission
via the Field Bus
The field bus cable is the physical connection between the PC and the
controller. It is necessary to have a suitable communication driver for data
transmission. This driver and its parameterization is entered in
WAGO-I/O-
PRO
in the
“communication parameter”
dialog.#
3.5.2.2.1
2 Byte Process Image Interface
The communication between
WAGO-I/O-
PRO
and the PFC run-time system
of the field bus coupler is performed via 2-byte I/O data in the PROFIBUS-DP
telegram. As far as speed is concerned, both transmission of the user program
and transfer of debugging information are very limited, since the telegrams
must be transmitted as a multiple of the 2-byte Input or Output area.
Furthermore, the transmission speed depends on the physical properties of
PROFIBUS (e.g. baud rate).
Attention
The
2 byte Process Data Channel
must be configured.
By configurating with version 1.0 of WAGO
NETCON
the
20
th
parameter
byte
(byte 19) must be set to
0x81
.
1. Start the
WAGO-I/O-
PRO
software via 'Start/Programs'
or by double clicking on the
WAGO-I/O-
PRO
symbol on your desktop.
2. In the "
Online
" menu click on the "
Communication parameters
" menu
point
3. Click on the "
New
" button to define a driver in the
"Communication parameter" dialog.
4. Enter any name and mark the desired driver "
Hilscher PA Interface
Standard
" in the selection window of the dialog.
Subsequently confirm with "
OK
".
5. The following entries have to appear in the center window of the dialog:
- Interface
Number of the Interface corresponding to PC configuration
- Input address
Corresponding to the configuration of the process data channel
(I
Add.)
- Output address
Corresponding to the configuration of the process data channel
(O
Add.)
If necessary, change the entry accordingly.