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
By configurating with version 1.0 of WAGO NETCON the 20
byte (byte 19) must be set to 0x81.
1. Start the WAGO-I/O-PRO software via 'Start/Programs'
2. In the "Online" menu click on the "Communication parameters" menu
3. Click on the "New" button to define a driver in the
4. Enter any name and mark the desired driver "Hilscher PA Interface
5. The following entries have to appear in the center window of the dialog:
WAGO-I/O-SYSTEM 750
Bus System
2 byte Process Data Channel
or by double clicking on the WAGO-I/O-PRO symbol on your desktop.
point
"Communication parameter" dialog.
Standard" in the selection window of the dialog.
Subsequently confirm with "OK".
- 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.
Programmable Field Bus Controller 750-833
Programming of the PFC with WAGO-I/O-PRO
must be configured.
• 73
th
parameter