Registering A New Modbus Device And Assigning A Modbus Profile; Limiting-Value Based Switching; Operators For Limit-Based Switching; Parameter For Limit-Based Switching - SMA DATA MANAGER M Operating Manual

SMA Solar Technology AG
6. Select Create a new Modbus profile.
7. Fill out the entry fields and select [Save].
8.9.4 Registering a New Modbus Device and Assigning a
Modbus Profile
Requirements:
☐ The user interface must be open and you must be logged in as Installer or Administrator.
☐ The connected Modbus devices must be configured to send their setpoints in cyclic intervals
(maximum cycle time: 1 minute; recommended cycle time: 1 second).
☐ The Modbus devices must be in operation and connected to the product.
Procedure:
1. Select the product in the focus navigation.
2. Select the menu item Device administration in the menu Configuration.
3. Select the button.
4. Select Modbus devices and confirm with [Next].
5. Fill out the input fields and confirm with [Next].
☑ Available Modbus devices in the system are searched for and displayed.
6. Select the Modbus devices to be added to the system and select [Save].
☑ The connected Modbus device can be used as an energy meter for generation and
consumption data at the point of interconnection, for energy monitoring or as sensor for wind
speed, solar irradiation, and temperature.

8.10 Limiting-value based switching

8.10.1 Operators for limit-based switching

The digital outputs of connected I/O systems can be switched depending on measured values or
states. In this way, heat pumps or relays, for example, can be controlled by specifying a defined
output. A tolerance (hysteresis) dependent on the selected operator prevents the digital outputs
from switching even with slight power fluctuations.
Operator
Greater than or equal to (>=)
Less than or equal to (<=)
Equal to

8.10.2 Parameter for limit-based switching

The following limits and parameters are available for limit-based switching:
• Direct selling enabled
• Notification in the event of an error
• Alarm in case of warning or error
Operating manual
Tolerance (hysteresis)
± 5 %
± 5 %
± 5 %
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8 Operation
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