Fronius Energy Package - Manual (Page 94)

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Restricting con-
trol The “Steuerung einschränken” [Restrict control] option is only available with TCP transmis-
sion protocols.
It prevents unauthorised persons from issuing inverter control commands by only allowing
certain devices to perform control functions.
Data export via Modbus
Here you can activate the Modbus service and select the transmission protocol.
If the Modbus service is activated, additional input fields are made available.
The Modbus RTU transmission protocol is only available with Fronius system
monitoring.
(1) off
No data exported via Modbus
(2) tcp
Data exported via Modbus TCP
(2a) Modbus port
Number of the TCP port that is to be used for Modbus communication.
(2b) Demo mode
Demo mode is used to implement or validate a Modbus master. It enables inverter
and string control data to be read out, even if no device is actually connected or
active. The same data is always returned for all registers.
(2c) Inverter control via Modbus
If this option is activated, the inverters can be controlled via Modbus.
The “Steuerung einschränken” [Restrict control] selection box is displayed.
Inverter control includes the following functions:
-
On/Off
- Power reduction
- Specification of a constant cos phi power factor
- Specification of a constant reactive power value
(3) Control priorities
The control priorities define which service takes priority during inverter control.
1 = highest priority, 3 = lowest priority
The control priorities can only be changed under the EVU EDITOR menu item.
(4) “Apply/Save” button
(5) “Cancel/Discard entry” button
(2)
(2a)
(2b)
(2c)
(1)
(2) XX.X.XX.X