3.4
Profibus
Configuration of the Devices
After selecting Profibus as the SCADA protocol (via setting [Device Planning] »Protocol« =
“Profibus”), enter the menu branch [Device Para / Profibus] ; there you have to set the
following communication parameter:
• »Slave ID«, to allow clear identification of the device This is a number from 2 to 125,
which must be unique among all Profibus devices in the network.
In addition to that the Master has to be provided with the GSD-file. The GSD-file can be
taken from the Product-CD.
Some more (Profibus-related) parameters that might be interesting are listed in the
Reference Manual.
CAUTION!
The trip signals are not part of the default configuration of the Profibus protocol!
If it is required that trip signals are reported via Profibus you have to explicitly assign
them to some Configurable Binary Input. For example, you have to make settings like the
following one:
[Device Para / Profibus / Config Bin Inp xx‑yy] »Config Bin Inp zz« = “50P . Trip”
Hardware Connection
• The hardware connection to the control system depends on the ordered hardware
╚═▷ “Catalog Codes for the EMR-3MP0”
): At the rear side of the EMR-3MP0, there is either an RS485 (D-SUB)
interface or an optic fiber (ST connector) interface available for the Profibus
connection.
• Connect bus and EMR-3MP0.
• Up to 123 Slaves can be connected.
• In case of a D-SUB interface, terminate the Bus by means of an Terminate Resistor.
Error Handling
Information on physical communication errors (e. g. the detected baud rate) can be
obtained from the Event Recorder (see
) or the status display (menu
branch [Operation / Status Display]).
Error Handling – D-SUB Status LED
The Profibus D-SUB interface at the rear side of the device is equipped with an status
LED.
• Baud Search — red flashing
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EMR-3MP0
3 Communication Protocols
3.4 Profibus