SMA SOLID-Q 50, SOLID-Q PRO 60 Technical Information
SMASOLID-Q-Modbus-TI-en-10 | Version 1.0 ENGLISH
Technical Information
SMA SOLID-Q 50 / PRO 60 Modbus
®
Interface
SMA New Energy Technology (Jiangsu) Co., Ltd.
2 SMASOLID-Q-Modbus-TI-en-10 | Version 1.0 Technical Information
Legal Provisions
The information contained in these documents is property of SMA New Energy Technology (Jiangsu) Co., Ltd. Any publication, whether in whole or in part, requires prior written approval by SMA
New Energy Technology (Jiangsu) Co., Ltd. Internal reproduction used solely for the purpose of
product evaluation or other proper use is allowed and does not require prior approval.
Trademarks
All trademarks are recognized, even if not explicitly identified as such. Missing designations do not
mean that a product or brand is not a registered trademark. Modbus
®
is a registered trademark of
Schneider Electric and is licensed by the Modbus Organization, Inc.
SMA New Energy Technology (Jiangsu) Co., Ltd
Building 9, No.198 Xiangyang Road
215011 Suzhou
P.R. China
Tel. +86 0512 6937 0998
Fax +86 0512 6937 3159
www.SMA-China.com
E-Mail: sales@SMA-China.com.cn
© 2017 SMA New Energy Technology (Jiangsu) Co., Ltd. All rights reserved.
SMA New Energy Technology (Jiangsu) Co., Ltd.
3 SMASOLID-Q-Modbus-TI-en-10 | Version 1.0 Technical Information
Table of Contents
1 Information on this Document .............................................................. 4
2 Safety ...................................................................................................... 4
2.1 Intended Use .........................................................................................................4
2.2 Skills of Qualified Persons ....................................................................................4
3 SMA-China Modbus Profile................................................................... 4
3.1 Information on the Assignment Tables .................................................................4
3.2 SMA-China Data Types and NaN Values ..........................................................5
3.3 SMA-China Modbus Profile - Register Overview ................................................5
3.4 Warning and Error Codes ....................................................................................9
3.5 Grid Codes ......................................................................................................... 11
3.6 Dynamic Reactive Power Management ............................................................ 12
3.6.1 CosPhi(P) curve ................................................................................................ 12
3.6.2 Q(U) curve ....................................................................................................... 12
3.7 LVRT curve settings ............................................................................................. 13
3.8 Frame format ...................................................................................................... 13
3.8.1 Read Holding Register (Function Code: 0x03) ............................................... 14
3.8.2 Read Input Register (Function Code: 0x04) .................................................... 15
3.8.3 Write Holding Single Register (Function Code: 0x06) ................................... 16
3.8.4 Write Holding Multiple Registers (Function Code: 0x10) ............................... 17
3.8.5 Write Holding Multiple Registers (Function Code: 0x10) for broadcast ........ 18
3.8.6 Exception Codes .............................................................................................. 18
4 Contact ................................................................................................. 18
SMA New Energy Technology (Jiangsu) Co., Ltd.
4 SMASOLID-Q-Modbus-TI-en-10 | Version 1.0 Technical Information
1 Information on this Document
Validity
This document is valid for SMA SOLID-Q 50 & SOLID-Q PRO 60 inverters in China.
Target Group
This document is intended for qualified persons. Only persons with appropriate skills are allowed to
perform the tasks described in this document.
2 Safety
2.1 Intended Use
The Modbus interface of the supported SOLID-Q is designed for industrial use, via RS485 or
RS422 protocol to enable remote control of the PV system, remote querying of values, and remote
parameter setting.
2.2 Skills of Qualified Persons
The activities described in this document must only be performed by qualified persons. Qualified
persons must have the following skills:
• Detailed knowledge of the grid management services
• Knowledge of IP-based network protocols
• Training in the installation and configuration of IT systems
• Knowledge of the Modbus specifications
• Knowledge of and compliance with this document and all safety information
3 SMA-China Modbus Profile
3.1 Information on the Assignment Tables
The assignment tables of the SMA-China Modbus profile present the following information:
Information
Explanation
ADR (DEC)
Decimal Modbus address.
Description/
number code(s)
Short description of the Modbus register and the number codes used.
Type
Type of the data (see Section 3.2).
SMA New Energy Technology (Jiangsu) Co., Ltd.
5 SMASOLID-Q-Modbus-TI-en-10 | Version 1.0 Technical Information
Unit
Unit of the data.
Gain
Real value = Gain * output value
Access
RO: Read Only
RW: Read and Write
3.2 SMA-China Data Types and NaN Values
The following table shows the data types used in the SMA-China Modbus profile and the possible
NaN values. The SMA-China data types are listed in the assignment tables in the Type column.
They describe the data widths of the assigned values:
Type
Description
NaN value
S16
A signed word (16-bit).
0x8000
U16
A unsigned word (16-bit).
0xFFFF
U32
A unsigned double word (32-bit).
0xFFFF FFFF
ASCII
Use 8 bit to indicate all the munber 0~9, the letter,and some
special symbol (for example &,@,and so on)
0~9,a~z,
A~Z, blank
3.3 SMA-China Modbus Profile - Register Overview
In the following table you will find all the measured values and parameters of the SMA-China
Modbus Profile.
Read-Only Registers
ADR
(DEC)
Description/number code
Type
Unit
Gain
Access
30001 Device Type: 1=Single phase / 3=Three pahse U16 -
-
RO
30002
E-Today
U32
kwh
0.1
RO
30004
E-Total
U32
kwh
0.1
RO
30006
H-total
U32
h
1
RO
30012
Device State: 0 = wait / 1 = normal / 2 = faulty
U16 - -
RO
30013
Error Code
U16 - -
RO
30014
Connect Time
U16
s
1
RO
SMA New Energy Technology (Jiangsu) Co., Ltd.
6 SMASOLID-Q-Modbus-TI-en-10 | Version 1.0 Technical Information
30015
Temperature
S16
°C
0.1
RO
30016
Connection Mode of PV Strings
0 = None
1 = PV1 Connected
2 = PV2 Connected
3 = PV1/PV2 Independently Connected
4 = All Input Parallel Connected
5 = PV1/PV3 Independently Connected
6 = PV2/PV3 Independently Connected
7 = PV1/PV2/PV3 Independently Connected
8 = PV3 Connected
U16 - - RO
30017
Bus Voltage
U16
V
0.1
RO
30018
PV1 Voltage
U16
V
0.1
RO
30019
PV1 Current
U16
A
0.1
RO
30020
PV2 Voltage
U16
V
0.1
RO
30021
PV2 Current
U16
A
0.1
RO
30022
PV3 Voltage
U16
V
0.1
RO
30023
PV3 Current
U16
A
0.1
RO
30029
L1 Phase Voltage [SOLID-Q 50]
L1 - L2 Line Voltage [SOLID-Q PRO 60]
U16 V 0.1 RO
30030
L1 Phase Current
U16
A
0.1
RO
30031
L2 Phase Voltage [SOLID-Q 50]
L2 - L3 Phase Voltage [SOLID-Q PRO 60]
U16 V 0.1 RO
30032
L2 Phase Current
U16
A
0.1
RO
30033
L3 Phase Voltage [SOLID-Q 50]
L3 - L1Phase Voltage [SOLID-Q PRO 60]
U16 V 0.1 RO
30034
L3 Phase Current
U16
A
0.1
RO
30035
Grid Frequency
U16
Hz
0.01
RO
30038
Pac
U32
W
1
RO
30040
Qac
U32
Var
1
RO
30042
Power Factor
S16 - -
RO
30043
Reactive Power Mode
0 = None
1 = Fixed Power Factor
2 = Cos Phi(P) curve
U16 - - RO
Loading...