Assignment Tables; Information On Assignment Tables; Unit Id = 1 (Communication Product); Unit Id = 2 (System) - SMA Modbus EDMM-US-10 Technical Information

SMA Solar Technology AG
4

Assignment Tables

4.1

Information on Assignment Tables

The following subsections are sorted by unit ID. Each contains a table of the Modbus registers
which can be accessed using this unit ID. The tables present the following information:
Information
ADR
Description/number codes
CNT
Type
Format
Access
4.2

Unit ID = 1 (Communication Product)

The following table lists the parameters provided by the communication product and measured
values that can be accessed at Unit ID = 1:
ADR Description/number codes
30001 Version number of the SMA profile
30003 SUSyID (Device ID)
30005 Serial number
30007 Modbus data change: counter value will in-
crease if data in the Profile has changed
(overflow).
30051 Device class:
• 8128 = Communication products
30193 UTC system time (s)
4.3

Unit ID = 2 (System)

In the following table, you can find the PV system parameters that you can access using unit ID = 2.
The system parameters represent measured values and parameters of the communication product
and also system devices that are connected via the Modbus protocol. Parameters such as time
settings are transferred by the communication product to the devices of the system and there,
depending on the device type, processed further. Measured values such as energy meter values
are queried by the devices and made available as accumulated values:
ADR Description/number codes
30193 UTC system time (s)
Technical Information
Explanation
Decimal Modbus register
Short description of the Modbus register and the number codes
used
Number of assigned Modbus registers
Data type
Data format of the saved value
Access type
4 Assignment Tables
CNT Type Format Access
2 U32 RAW
2 U32 RAW
2 U32 RAW
2 U32 RAW
2 U32 ENUM
2 U32 DT
CNT Type Format Access
2 U32 DT
EDMM-10-Modbus-TI-en-11
RO
RO
RO
RO
RO
RO
RO
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