8. IMPLEMENTATION OF MODBUS-RTU PROTOCOL
ADA-1040PC3 protocol converter allows connecting Inverters with SunMaster-Soladin protocol as SLAVE to RS485 MODBUS-RTU
bus. The length of RS485 bus can be extended by the use of ADA-4040 repeaters or ADA-4044H HUBs RS485
The MODBUS-RTU protocol used for communication between ADA-1040PC3 converters and SCADA-type system or PLC controller
enable easy integration of SunMaster-Soladin inverters in existing automation systems BMS.
8.1. TABLE OF MODBUS-RTU ADDRESSES
8.1.1. REGISTERS ACTUAL VALUE MEASUREMENTS AND CONDITION INVERTER, READOUT
BY FUNCTION 04 (3X – REFERENCES) INPUT REGISTERS
Address
3X
Registers
Address
Registers
description
Attribute
Value
30001
0
TypeIDH = 0x00
TypeIDL 8-bit inverter type
R
16-bit register
30002
1
Status1
Status0 16-bit inverter status
R
16-bit register
30003
2
UsolH
UsolL 16-bit
solar panel voltage DC measurement
R
16-bit register
30004
3
IsolH
IsolL 16-bit solar panel
current DC measurement
R
16-bit register
30005
4
FacH
FacL 16-bit network voltage AC frequency measurement
R
16-bit register
30006
5
UacH
UacL 16-bit network voltage AC measurement
R
16-bit register
30007
6
IacH
IacL 16-bit network current AC measurement
R
16-bit register
30008
7
PacH
PacL 16-bit network power AC measurement
R
16-bit register
30009
8
Hi = 0x00
EacH (Low)
R
16-bit register
30010
9
EacM
EacL 24-bit energy counter - kWh
R
16-bit register
30011
10
TempH=0x00
TempL 8-bit internal temperature
R
16-bit register
30012
11
Hi=0x00
TonH (Lo)
R
16-bit register
30013
12
TonM
TonL 24-bit operating hour counter
R
16-bit register
30014
13
Trecl/UocH
Status1, bit4=1 :
Trecl/UocL
Status1, bit4=0 :
16-bit time from reclosing / 16-bit open terminal voltage
R
16-bit register
30015
14
Hi = 0x00
Rac/Phase network impedance measurement
R
16-bit register
13
ADA-1040PC3
Summary of Contents for ADA-1040PC3
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