4
5.4.1 Bus cabling, master to slave
Fig. 5
Bus cabling, master to slave
6. Operating the pump using PROFIBUS-DP
6.1 Activating the PROFIBUS
6.1.1 Display
As soon as PROFIBUS operation has been activated, the
PROFIBUS module starts trying to accept bus operation. During
correct bus operation, "BUS" is shown in the display.
If an error occurs, the "ERROR" and "BUS" symbols will flash in
the display.
6.1.2 Opening the second function level
In the second function level, the PROFIBUS operation is
activated and the bus address (slave address) is entered.
Fig. 6
Second function level
6.1.3 Activating PROFIBUS on the pump
Fig. 7
Activating PROFIBUS on the pump
The display shows the current PROFIBUS setting (default is
OFF).
1. To activate the PROFIBUS operation, press the "Up" button.
– When PROFIBUS operation is activated, "BUS" appears in
the display.
2. Press the "Start/Stop" button.
– The current bus address appears in the display.
3. Use the "Up" and "Down" buttons to enter the desired bus
address in the range 000-126.
• Press the "Menu/Info" button (confirm the setting and move on
to the next menu item), or
• press the "Start/Stop" button (confirm the setting and close the
second function level).
6.1.4 Bus error
A possible problem with the PROFIBUS communication is
indicated on the pump. "ERROR" and "BUS" flash in the display.
If there is no connection to the PROFIBUS master (cable
connection, master failure), "ERROR", "BUS" and the "Arrow"
icon flash in the display.
The pump continues trying to establish bus communication.
T
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Note
The minimum cable length of 1 metre between the
devices on the bus must be observed.
Make sure that the PROFIBUS cables and power
cables do not run in parallel.
Note
First read the installation and operating
instructions for the DDI pump. Only the
additional functions are described in this manual.
TM
03
65
87
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06
Bus terminal
resistor
Slave 3
Slave 2
Slave 1
Master
Output
Input
Menu
Menu
Down
Up
Stop
Start
Stop
Start
Stop
Start
Pump running (LED lights up green)
Pump not running (LED lights up red)
Keep pressed for 3 seconds
Second function level
Setting code 111
• Calibration
• Flow on/off
• Memory function on/off
• Analog weighting
• Batch mode
• Timer mode
• PROFIBUS
• Slow mode
• Display or resetting of total dosing capacity
• Display of total number of operating hours
TM
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5
88
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Note
A faulty connection to the PROFIBUS master is
only indicated if response monitoring is enabled
in the master.
Menu
Menu
Up
Down
Menu
108
Down
Up
Stop
Start
OFF
On
Stop
Start
OFF
BUS
BUS
BUS
BUS
Enter bus address
with "Up" / "Down"
