PVI-RS485-MODBUS-RTU - ModBus Register Mapping Centrainverter_V1.13

P1 AURORA CENTRAL RTU Modbus Specification. (3I56001F000G) (Related Firmware Version C012) March 2012, Version 1. Rev 13 This document is confidential to the organisation receiving it. Neither the document nor the information contained in it may be revealed to any third parties without an approval from P1’s executive management P1 reserves the right to change any information in this specification without advise

THE MODBUS PROTOCOL In the our Modbus Interface is implemented only the RTU Mode. The parameters are referred to as 16-bit Modbus Registers, a 32-bit Float parameters covers therefore two Modbus registers The broadcast mode is not allowed. An implemented subset of the Modbus functions contains: • O3 Read-Write Holdings Registers • 04 Read Input Register The communication foresees the following setting: • RS 485 • Baud Rate 19200 bps • 1 bit start • 1 bit stop • No parity 8 data bits (RTU protocol) •

The Modbus Interface Interface collects data by max 32 Aurora Central Inverters. The Modbus Interface Interface collects data by max 64 Junction Box The Modbus Interface collects data by max 16 Rack.

Is recommended before to use this Modbus Interface to have already setting the values of the Racks Numbers in the System.

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READ OUTPUTS REGISTERS (Rd 03/Wr 06-16) This function allows to require the value of 16-bit register containing Modbus Address parameter. This function allows also to change this parameter via command 06 , the value changed is saved in EEprom memory. The Default parameter is 0x01

Register Map. Add. 0001

Word 1

Description Modbus Address

Unit Decimal (1-247)

Format Unsigned int

This function allows to synchronize Modbus collection Data .(Junction Box and Rack)

Is recommended to use this feature every day at the start of the system to synchronize the data acquired. The parameters accepted are: 1 = Synchronization. This register show also the answers at the Modbus Synchronization command 9999 = Synchronization Pending.

Register Map. Add. 0002

Word 1

Description Modbus Synchronization

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Unit Decimal

Format Unsigned int

This function allows to setting the parameter :Message Time to Live. (The maximum number of lost messages in succession before you have a situation of LOST COMUNICATION) The parameters accepted are: Min .= 5 Max. = 20 Default = 5 (See Note3)

Register Map. Add. 0010

Word 1

Description Modbus Message Time to Live

Unit Decimal

Format Unsigned int

This function allows to setting the parameter : State of the data collection. The parameters accepted are: 1 = asks for global measurements (only for a Master, registers xx84 to xx94 ). 0 = asks for module measurements (only for a Slave, registers xx48 to xx60). Default = 1 (See Note 2 & 3)

Register Map. Add. 0011

Word 1

Description Modbus state of the data collection

Unit Decimal

Format Unsigned int

This function allows to setting the reset of the values in the Modbus table, when happens a situation of LOST COMUNICATION. The parameters accepted are: 1 = Values cleared. 0 = Values no cleared. Default = 1 (See Note3)

Register Map. Add. 0012

Word 1

Description Modbus resets the own values after a LOST COMUNICATION

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Unit Decimal

Format Unsigned int

This function allows to setting the rate of sending for messages to Inverter Module The parameters accepted are: Min .= 50 (ms) Max. = 250 (ms) Default = 250 (ms) (See Note3)

Register Map. Add. 0013

Word 1

Description Modbus Speed messages to the Inverter Modules

Unit Decimal

Format Unsigned int

This function allows to setting the rate of sending for messages to Junction Box Module The parameters accepted are: Min .= 150 (ms) Max. = 250 (ms) Default = 250 (ms)

Register Map. Add. 0014

Word 1

Description Modbus Speed messages to the Junction Box Modules

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Unit Decimal

Format Unsigned int

This function allows to require the value of 16-bit register containing the number of the Rack presents in the system and the Rack Number associate. This function allows also to have a Remote ON OFF in a Rack, starting from register 117 until register 132. The parameter is : 0 for ON 1 for OFF This register show also the answers at the On-Off command 0= Command ON OK 1= Command OFF OK 3 = Communication Lost 4 = Rack not present The Default value for this registers is 0

Register Map. Add. 0100

Word 1

0101

1

…. 0116

…. 1

…. 0117

…. 1

…. 0132

…. 1

Description Numbers Racks presents in the System st 1 Rack Number found in the System …. th 16 Rack Number found in the System …. st Remote On-Off for 1   Rack Number found in the System

Unit Decimal (Read Only) Decimal (Read Only) …. Decimal (Read Only) …. Decimal (0 = ON) (1=OFF)

Format Unsigned Int

…. th Remote On-Off for 16   Rack Number found in the System

…. Decimal (0 = ON) (1=OFF)

…. Unsigned Int

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Unsigned Int …. Unsigned Int …. Unsigned Int

READ INPUT REGISTER (Rd0x04) This function allows to require the value of 16-bit register containing the measures of the Modules present in the system .

Register Map. Add. 0001

Word 1

Description Number Modules Aurora Central Present in the System Presence Module Aurora Central 01

0002

1

…. 0033

…. 1

…. Presence Module Aurora Central 32

0034

1

Status Module Aurora Central 01

…. 0065

…. 1

…. Status Module Aurora Central 32

0066

1

…. 0097

…. 1

…. 0098

…. 1

Rack Number Module Aurora Central 01 …. Rack Number Module Aurora Central 32 …. Status Modbus Interface

Unit Decimal (0-32)

Format Unsigned Int

Decimal (1=Present ) (0=Not Present) …. Decimal (1=Present ) (0=Not Present) Decimal (0=OK) (1=WARNING) (2= ERROR) (3=COMM.LOST) …. Decimal (0=OK) (1=WARNING) (2= ERROR) (3=COMM.LOST) Decimal (0-255)

Unsigned Int

…. Decimal (0-255)

…. Unsigned Int

…. Decimal (0=OK) (1=EEPROM FAILURE) (2= MODULES COMUNICATION FAILURE)

…. Unsigned Int

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…. Unsigned Int

…. Unsigned Int

Unsigned Int

Add. 0100

Word 1

…. 0134

…. 1

Measures

0136

2

Measures

0138

2

Measures

…. 0194

…. 2

….

….

Add. 3200

Word 1

…. 3234

…. 1

Measures

3236

2

Measures

3238

2

Measures

…. 3294

…. 2

Measures

Measures

Description Module Aurora Central 01 …. Module Aurora Central 01 Module Aurora Central 01 Module Aurora Central 01 …. Module Aurora Central 01

Unit View Reg.Map Module 01 …. View Reg.Map Module 01 View Reg.Map Module 01 View Reg.Map Module 01 …. View Reg.Map Module 01

Format Unsigned Int

….

….

Unit View Reg.Map Module 01 …. View Reg.Map Module 01 View Reg.Map Module 01 View Reg.Map Module 01 …. View Reg.Map Module 01

Format Unsigned Int

….

Measures

Measures

Description Module Aurora Central 32 …. Module Aurora Central 32 Module Aurora Central 32 Module Aurora Central 32 …. Module Aurora Central 32

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…. Unsigned Int Float Float …. Float

…. Unsigned Int Float Float …. Float

This function allows requiring the value of 16-bit register containing the values concerning the type of equipment in the system. .

Register Map.

Add. 3500

Word 1

Description Aurora Type Module 01

Unit Decimal (ASCII ) ( See Table 1.1)

Format Unsigned Int

3501

1

Grid Type Module 01

Unsigned Int

3502

1

Trafo Type Module 01

3503

1

Wind Type Module 01

Decimal (ASCII ) ( See Table 1.2) Decimal (ASCII ) ( See Table 1.3) Decimal (ASCII ) ( See Table 1.4)

….

….

….

….

….

Add. 3624

Word 1

Description Aurora Type Module 32

Unit Decimal (ASCII ) ( See Table 1.1)

Format Unsigned Int

3625

1

Grid Type Module 32

Unsigned Int

3626

1

Trafo Type Module 32

3627

1

Wind Type Module 32

Decimal (ASCII ) ( See Table 1.2) Decimal (ASCII ) ( See Table 1.3) Decimal (ASCII ) ( See Table 1.4)

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Unsigned Int Unsigned Int

Unsigned Int Unsigned Int

This function allows to require the value of 16-bit register containing the Firmware Revision Modbus Interface

Register Map.

Add. 3650

Word 1

Description Modbus Interface Type

Firmware Major Release

Unit Decimal (ASCII ) A=Aurora String C= AuroraCentral Decimal (ASCII )

3651

1

3652 3653

Format Unsigned Int

Unsigned Int

1

Firmware Minor Release

Decimal (ASCII )

Unsigned Int

1

Firmware Build Release

Decimal (ASCII )

Unsigned Int

This function allows to require the value of 16-bit register containing the collection of Energy Modules

Register Map. Add. 3700

Word 2

3702

2

3704

2

3706

2

3708

2

3710

2

Description Collection Daily Energy of all Modules Collection Total Energy of all Modules Collection Partial Energy of all Modules Collection Week Energy of all Modules Collection Monthly Energy of all Modules Collection Yearly Energy of all Modules

Unit KWattHour

Format IEEE 32 Float

KWattHour

IEEE 32 Float

KWattHour

IEEE 32 Float

KWattHour

IEEE 32 Float

KWattHour

IEEE 32 Float

KWattHour

IEEE 32 Float

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This function allows to require the value of 16-bit register containing the measures of the Junction Box present in the system .

Register Map. Add. 4100

Word 1

Description Measures Junction Box 01

Unit View Reg.Map Junction Box 01 …. View Reg.Map Junction Box 01 View Reg.Map Junction Box 01 …. View Reg.Map Junction Box 01

Format Unsigned Int

…. 4104

…. 1

…. Measures Junction Box 01

4106

2

Measures Junction Box 01

…. 4138

…. 2

…. Measures Junction Box 01

….

….

….

….

….

Add. 10500

Word 1

Description Measures Junction Box 64

Format Unsigned Int

…. 10504

…. 1

…. Measures Junction Box 64

10506

2

Measures Junction Box 64

…. 10538

…. 2

…. Measures Junction Box 64

Unit View Reg.Map Junction Box 01 …. View Reg.Map Junction Box 01 View Reg.Map Junction Box 01 …. View Reg.Map Junction Box 01

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…. Unsigned Int Float …. Float

…. Unsigned Int Float …. Float

Register Map. Module 01. The below register map is referred at the Module 01 , but it is valid for all the Modules presents in the system Aurora Central.

Add. 0100 0101 0102

Word 1 1 1

Description Step RackNumber Module 01 JBManaged

0103

1

JBMaster

0104

1

0105

1

0106

1

JA_High (Junction Box address) JA_Low (Junction Box address) Rack SN0 Module 01

…. 0111

…. 1

…. Rack SN5 Module 01

0112

1

Rack PN 0 Module 01

…. 0117

…. 1

…. Rack PN5 Module 01

0118

1

SN0 Module 01

…. 0123

…. 1

…. SN5 Module 01

0124

1

PN0 Module 01

….

….

….

Unit Decimal (TBD) Decimal (0-255) Decimal (0-12) Number J.B. presents in the system Decimal (1= JB Master) (0= JB Not Master) Decimal ( See Table 3) Decimal ( See Table 3) Decimal (ASCII ) (See Note1) …. Decimal (ASCII ) (See Note1) Decimal (ASCII ) (See Note1) …. Decimal (ASCII ) (See Note1) Decimal (ASCII ) (See Note1) …. Decimal (ASCII ) (See Note1) Decimal (ASCII ) (See Note1) ….

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Format Unsigned Int Unsigned Int Unsigned Int

Unsigned Int

Unsigned Int Unsigned Int Unsigned Int …. Unsigned Int Unsigned Int …. Unsigned Int Unsigned Int …. Unsigned Int Unsigned Int ….

0129

1

PN5 Module 01

Decimal (ASCII ) (See Note1) Decimal (0= Master MPPT) (1=Slave MPPT) Decimal ( See Table 2.1) Decimal ( See Table 2.2) Decimal ( See Table 2.4)

0130

1

Type of Module (Master or Slave)

0131

1

0132

1

0133

1

Status0 Module 01 (Global State) Status1 Module 01 (Inverter State) Status2 Module 01 (Alarm State)

0136 0138 0140 0142 0144 0146 0148

2 2 2 2 2 2 2

0150

2

0152

2

0154

2

0156

2

Daily Energy Module 01 Total Energy Module 01 Partial Energy Module 01 Week Energy Module 01 Monthly Energy Module 01 Yearly Energy Module 01 3 phases Grid Voltage Module 01 (Slave) 3 phases Grid Current Module 01 (Slave) 3 phases Grid power Module 01 (Slave) 3 phases Frequence Module 01 (Slave) Input Power Module 01 (Slave)

0158

2

0160

Unsigned Int Unsigned Int

Unsigned Int Unsigned Int Unsigned Int

KWattHour KWattHour KWattHour KWattHour KWattHour KWattHour Volt Rms

IEEE 32 IEEE 32 IEEE 32 IEEE 32 IEEE 32 IEEE 32 IEEE 32

Float Float Float Float Float Float Float

Ampere Rms

IEEE 32 Float

KWatt

IEEE 32 Float

Hz

IEEE 32 Float

KWatt

IEEE 32 Float

Input Voltage Module 01 (Slave)

Volt

IEEE 32 Float

2

Input Current Module 01 (Slave)

Ampere

IEEE 32 Float

0162

2

Celsius Degree

IEEE 32 Float

0164

2

Celsius Degree

IEEE 32 Float

0166 0168 0170 0172

2 2 2 2

Celsius Degree Celsius Degree Celsius Degree KWattHour

IEEE 32 IEEE 32 IEEE 32 IEEE 32

0174

2

0176

2

Supervisor Temperature Module 01 Power Supply Temperature Module 01 Headsink Module 01 T2 Module 01 T3 Module 01 Daily Energy Module 01 (Rack Energy ) Total Energy Module 01 (Rack  Energy) Partial Energy Module 01 (Rack  Energy)

Float Float Float Float

KWattHour

IEEE 32 Float

KWattHour

IEEE 32 Float

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0178

2

0180

2

0182

2

0184

2

0186

2

0188

2

0190

2

0192

2

0194

2

Week Energy Module 01 (Rack  Energy) Monthly Energy Module 01 (Rack Energy) Yearly Energy Module 01 (Rack Energy) Grid Voltage Module 01 (Master Mean of 3 phases Global Measurements) Grid Current Module 01 (Master Mean of 3 phases Global Measurements) Grid power Module 01 (Master Mean of 3 phases Global Measurements) Input Power Module 01 (Master Global Measurements) Input Voltage Module 01 (Master Global Measurements) Input Current Module 01 (Master Global Measurements)

KWattHour

IEEE 32 Float

KWattHour

IEEE 32 Float

KWattHour

IEEE 32 Float

Volt

IEEE 32 Float

Ampere

IEEE 32 Float

KWatt

IEEE 32 Float

KWatt

IEEE 32 Float

Volt

IEEE 32 Float

Ampere

IEEE 32 Float

By Power One Italy Page 14 of 27

Register Map. Junction Box 01. The below register map is referred at the Junction Box 01 , but it is valid for all the Junction Box presents in the system Aurora Central.

Add. 4100

Word 1

1

Description Numbers Junction Box presents in the System (Total) RackNumber of the Module that manages the Junction Box Address of the Module that manages the Junction Box Junction Box present in the Rack

Unit Decimal

Format Unsigned Int

4101

1

Decimal

Unsigned Int

4102

1

Decimal

Unsigned Int

4103

Decimal

Unsigned Int

4104

1

Address Junction Box 01

Decimal

Unsigned Int

4105

1

Fuses State 1

Unsigned Int

4106

1

Fuses State 2

4107

1

String Currents State 0

4108

1

String Currents State 1/ Fuses State 0

04109

1

JB State

4110

1

Junction Box Type

4111

1

Junction Box Digital Input state

Decimal (See Table 4.1) Decimal (See Table 4.2) Decimal (See Table 4.3) (See Table 4.3 by Current State 1 See Table 4.2 by Fuses State 0) Decimal (See Table 4.1) Decimal (ASCII ) 71 =3G90(Def.) 76 =3L11 Decimal (This register is valid only for 3L11 Type See Table 5)

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Unsigned Int Unsigned Int Unsigned Int

Unsigned Int Unsigned Int

Unsigned Int

4112

1

Junction Box Digital Input ID1 function Flag

4113

1

Junction Box Analog Input 2 Function Flag

…. 4116 4118 4120 4122 4124 4126 4128 4130 4132 4134 4136

…. 2 2 2 2 2 2 2 2 2 2 2

4138

2

4140 4142 4144 4146 4148

2 2 2 2 2

…. Current I0 Junction Box 01 Current I1 Junction Box 01 Current I2 Junction Box 01 Current I3 Junction Box 01 Current I4 Junction Box 01 Current I5 Junction Box 01 Current I6 Junction Box 01 Current I7 Junction Box 01 Current I8 Junction Box 01 Current I9 Junction Box 01 Internal Temperature Junction Box 01 Global Parallel Voltage Junction Box 01 Analog Input 1 Junction Box 01 Analog Input 2 Junction Box 01 Analog Input 3 Junction Box 01 Analog Input 4 Junction Box 01 Global String Current Junction Box 01

Decimal (This register is valid only for 3L11 Type 0=Generic Alarm Input 1= DC Isolation Switch Reading ) Decimal (This register is valid only for 3L11 Type 0=Generic Measure Input 1= PT100 Input) …. Ampere Ampere Ampere Ampere Ampere Ampere Ampere Ampere Ampere Ampere Celsius Degree

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Volt TBD TBD TBD TBD Ampere

Unsigned Int

Unsigned Int

…. IEEE 32 IEEE 32 IEEE 32 IEEE 32 IEEE 32 IEEE 32 IEEE 32 IEEE 32 IEEE 32 IEEE 32 IEEE 32

Float Float Float Float Float Float Float Float Float Float Float

IEEE 32 Float IEEE 32 IEEE 32 IEEE 32 IEEE 32 IEEE 32

Float Float Float Float Float

Table 1.1 - Model identifier. See table below

Model Char 105 111 108 79 53 54 80 67 52 51 50 49 68 88 72 104 84 116 85 118 90 122 77

(ASCII -> ‘i’) (ASCII -> ‘o’) (ASCII -> ‘I’) (ASCII -> ‘O’) (ASCII -> ‘5’) (ASCII -> ‘6’) (ASCII -> ‘P’) (ASCII -> ‘C’) (ASCII -> ‘4’) (ASCII -> ‘3’) (ASCII -> ‘2’) (ASCII -> ‘1’) (ASCII -> ‘D’) (ASCII -> ‘X’) (ASCII -> ‘H’) (ASCII -> ‘h’) (ASCII -> ‘T’) (ASCII -> ‘t’) (ASCII -> ‘U’) (ASCII -> ‘v’) (ASCII -> ‘Z’) (ASCII -> ‘z’) (ASCII -> ‘M’)

Indoor/Outdoor and type PVI-2000-IND PVI-2000-OUTD PVI-3600-IND PVI-3600-OUTD PVI-5000-OUTD PVI-6000-OUTD 3-phase interface (3G74) PVI-CENTRAL-50 module PVI-4.2-OUTD PVI-3.6-OUTD PVI-3.3-OUTD PVI-3.0-OUTD PVI-12.5-OUTD PVI-10.0-OUTD PVI-4.6-OUTD-I PVI-3.8-OUTD-I PVI-12.5-OUTD-I PVI-10.0-OUTD-I PVI-12.5-OUTD-I (output 208 VAC) PVI-10.0-OUTD-I (output 380 VAC) PVI-12.5-OUTD-I (output 600 VAC) PVI-10.0-OUTD-I (output 600 VAC) PVI-CENTRAL-250

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Table 1.2 - Grid-Standard identifier. See table below.

65 69 83 73 85 75 70 82 66 79 71 84 67 81 63 97

Grid-standard char (ASCII (ASCII (ASCII (ASCII (ASCII (ASCII (ASCII (ASCII (ASCII (ASCII (ASCII (ASCII (ASCII (ASCII (ASCII (ASCII

Grid standard -> ‘A’) -> ‘E’) -> ‘S’) -> ‘I’) -> ‘U’) -> ‘K’) -> ‘F’) -> ‘R’) -> ‘B’) -> ‘O’) -> ‘G’) -> ‘T’) -> ‘C’) -> ‘Q’) -> ‘?’) -> ‘a’)

98

(ASCII -> ‘b’)

99

(ASCII -> ‘c’)

USA - UL1741 Germany - VDE0126 Spain - DR 1663/2000 Italy - ENEL DK 5950 UK - UK G83 Australia - AS 4777 France - VDE French Model Ireland - EN50438 Belgium - VDE Belgium Model Korea Greece - VDE Greece Model Taiwan Czech Republic People’s Republic of China China USA - UL1741 Vout = 208 single phase USA - UL1741 Vout = 240 single phase USA - UL1741 Vout = 277 single phase

Table 1.3 - Transformer/Transformerless identifier. See table below

78 84 116

Transformer char (ASCII -> ‘N’) (ASCII -> ‘T’) (ASCII -> ‘t’)

Transformer/Transformerless version Transformerless version Transformer version Transformer HF version

Table 1.4 - Photovoltaic/eolic identifier. See table below

Type char 80 87

(ASCII -> ‘P’) (ASCII -> ‘W’)

Photovoltaic/eolic version Photovoltaic version Eolic version

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Table2.1 Status 0(Global State). See table below

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37 38 98 99 100 101 200

Global State Sending Parameters Wait Sun/Grid Checking Grid Measuring Riso DcDc Start Inverter Start Run Recovery Pause Ground Fault OTH Fault Address Setting Self Test Self Test Fail Sensor Test + Meas.Riso Leak Fault Waiting for manual reset Internal Error E026 Internal Error E027 Internal Error E028 Internal Error E029 Internal Error E030 Sending Wind Table Failed Sending table UTH Fault Remote OFF Interlock Fail Executing Autotest Waiting Sun Temperature Fault Fan Staucked Int. Com. Fault Slave Insertion DC Switch Open TRAS Switch Open MASTER Exclusion Auto Exclusion Erasing Internal EEprom Erasing External EEprom Counting EEprom Freeze Dsp Programming

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Table2.2 Status 1 (Inverter State). See table below

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 40 41 42 43 44 45 46 47 … 255

Inverter State Stand By Checking Grid Run Bulk OV Out OC IGBT Sat Bulk UV Degauss Error No Parameters Bulk Low Grid OV Communication Error Degaussing Starting Bulk Cap Fail Leak Fail DcDc Fail Ileak Sensor Fail SelfTest: relay inverter SelfTest: wait for sensor test SelfTest: test relay DcDc + sensor SelfTest: relay inverter fail SelfTest timeout fail SelfTest: relay DcDc fail Self Test 1 Waiting self test start Dc Injection Self Test 2 Self Test 3 Self Test 4 Internal Error Internal Error Forbidden State Input UC Zero Power Grid Not Present Waiting Start MPPT Grid Fail Input OC … Inverter Dsp not programmed

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Table2.4 Status 3 (Alarm State). See table below

Alarm State Value Description Code Value Description Code 0

No Alarm

34

Grid OF

W006

1

Sun Low

W001

35

Grid UF

W007

2

Input OC

E001

36

Z grid Hi

W008

3

Input UV

W002

37

Internal error

E024

4

Input OV

E002

38

Riso Low

E025

5

W001

39

Vref Error

E026

E003

40

Error Meas V

E027

7

Sun Low No Parameters Bulk OV

E004

41

Error Meas F

E028

8

Comm.Error

E005

42

E029

9

Output OC

E006

43

E030

10

IGBT Sat

E007

44

Error Meas Z Error Meas Ileak Error Read V

11

Bulk UV

W011

45

Error Read I

E032

12

Internal error

E009

46

Table fail

W009

13

Grid Fail

W003

47

Fan Fail

W010

14

Bulk Low

E010

48

UTH

E033

15

Ramp Fail

E011

49

Interlock fail

E034

16

Dc/Dc Fail

E012

50

E035

17

Wrong Mode

E013

51

18

Ground Fault

---

52

Remote Off Vout Avg errror Battery low

W012

19

E014

53

Clk fail

W013

E015

54

Input UC

E037

21

Over Temp. Bulk Cap Fail Inverter Fail

E016

55

Zero Power

W014

22

Start Timeout E017

56

E038

23

Ground Fault

57

24

Degauss error ---

58

25

Ileak sens.fail E019

59

26

DcDc Fail Self Test Error 1 Self Test Error 2 Self Test Error 3 Self Test Error 4

E012

60

Fan Stuck DC Switch Open Tras Switch Open AC Switch Open Bulk UV

E020

61

Autoexclusion E043

E021

62

Grid df/dt

W015

E019

63

Den switch Open

W016

E022

64

Jbox fail

W017

31

DC inj error

E023

65

32

Grid OV

W004

66

33

Grid UV

W005

6

20

27 28 29 30

E018

DC Door Open AC Door Open

By Power One Italy Page 21 of 27

E031

E036

E039 E040 E041 E042

E044 E045

Table 3 – Monitor junction box status JA  active junction boxes coded bit x bit as follow.  JA = JAH * 28 + JAL.

Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 JAL JAH

JAL-bit0 JAL-bit1 JAL-bit2 JAL-bit3 JAL-bit4 JAL-bit5 JAL-bit6 JAL-bit7

JAH-bit0 JAH-bit1 JAH-bit2 JAH-bit3

=0 =1 =0 =1 =0 =1 =0 =1 =0 =1 =0 =1 =0 =1 =0 =1

Junction number 1 (Inner Rs-485 address 2) is not active Junction number 9 (Inner Rs-485 address 10) is active Junction number 2 (Inner Rs-485 address 2) is not active Junction number 9 (Inner Rs-485 address 10) is active Junction number 3 (Inner Rs-485 address 2) is not active Junction number 9 (Inner Rs-485 address 10) is active Junction number 4 (Inner Rs-485 address 2) is not active Junction number 9 (Inner Rs-485 address 10) is active Junction number 5 (Inner Rs-485 address 2) is not active Junction number 9 (Inner Rs-485 address 10) is active Junction number 6 (Inner Rs-485 address 2) is not active Junction number 9 (Inner Rs-485 address 10) is active Junction number 7 (Inner Rs-485 address 2) is not active Junction number 9 (Inner Rs-485 address 10) is active Junction number 8 (Inner Rs-485 address 2) is not active Junction number 9 (Inner Rs-485 address 10) is active

=0 =1 =0 =1 =0 =1 =0 =1

Junction number 9 (Inner Rs-485 address 2) is not active Junction number 9 (Inner Rs-485 address 10) is active Junction number 10 (Inner Rs-485 address 2) is not active Junction number 9 (Inner Rs-485 address 10) is active Junction number 11 (Inner Rs-485 address 2) is not active Junction number 9 (Inner Rs-485 address 10) is active Junction number 12 (Inner Rs-485 address 2) is not active Junction number 9 (Inner Rs-485 address 10) is active

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Table 4.1 – Junction Box state

JB State  identifier of the junction box state. See table below.

 Jbox state-bit0

=0 =1

All fuses OK Burnt fuse on Jbox

 Jbox state-bit1

=0 =1

OK Jbox Overtemperature

 Jbox state-bit2

=0 =1

OK Jbox Overvoltage

 Jbox state-bit3

=0 =1

OK Unbalanced string current

 Jbox state-bit4

=0 =1

OK Jbox Overcurrent

 Jbox state-bit5

=0 =1

OK Power Off

 Jbox state-bit6

=0 =1

OK No communication

 Jbox state-bit7

=0 =1

OK Jbox not calibrated

Table 4.2 – Fuses state Fuses state  identifier of the junction box state. See table below. Fx =1  x-th fuse OK Fx =0  x-th fuse is burnt

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Table 4.3 – String-Currents State

String-Currents State  identifier of the string-currents state. See table below. Cx =0  x-th string current OK Cx =1  x-th string current Unbalanced

F10 F20 F9 F19 F8 F18 F7 F17 F6 F16 F5 F15 F4 F14 F3 F13 Fuses State 2

F2 F12 F1 F11 -

Fuses State 1

- C9 C8 C7 C6 C5 C4 C3 C2 C1 C0

String Currents State 1/ Fuses State 0

String Currents State 0

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Table 5 – Digital-Inputs state of a junction box

Digital-Inputs State  state of the digital input being read. See table below.

Digital-Inputs State Bit (0-7)

Meaning

0

ID0 ( “anti-theft”  alarm ): 0: No alarm 1: Alarm pending

1

ID1 – the input can be configured to work as generic alarm or to monitor DC isolation-switch state – see the commands 211 and 220 for setting and reading the input function. ID1 – ( generic alarm ): 0: Contact open 1: Contact closed ID1 – ( DC isolation-switch state ): 0: Switch open 1: Switch closed

2

ID2 ( generic alarm ): 0: Contact open 1: Contact closed

3-7

no meaning

By Power One Italy Page 25 of 27

Note 1

Example Reading Sn: Sn 0 48 ASCII ‘0’ Sn 1 48 ASCII ‘0’ Sn 2 48 ASCII ‘0’ Sn 3 48 ASCII ‘0’ Sn 4 48 ASCII ‘0’ Sn 5 49 ASCII ‘1’

Example Reading Pn: Pn 0 45 ASCII ‘-’ Pn 1 51 ASCII ‘3’ Pn 2 76 ASCII ‘L’ Pn 3 54 ASCII ‘6’ Pn 4 56 ASCII ‘8’ Pn 5 45 ASCII ‘-’

Note 2

Data Collection Master or Slave If Module is a Master MPPT asks the values for global measurements (Master registers xx84 to xx94 ). If Module is a slave MPPT asks the values for module measurements (Slave registers xx48 to xx60).

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Note 3

In the P1 Rack where it’s mounted the Display Touch Screen 5.7” AURORA CENTRAL PVI MONITOR , P1 suggests to use the following values:

Modbus Modbus Modbus Modbus

Message Time to Live state of the data collection resets the own values after a LOST COMUNICATION Speed messages to the Inverter Modules

= 15 = 0 = 0 = 100

By Power One Italy Page 27 of 27