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17

Technical Data 

MN019001EN

Effective November 2015

Bussmann series 
PV Combiner box 
  

EATON

 www.eaton.com

24 string monitoring units

Interface parameters

The type S1 string monitoring module PVCBM-GR24 supports the 
modbus RTU protocol with the following interface parameters:

Baud rate

1200 to 38400 Bd

Format

8n1, 8e1 or 8o1

Max. cable length

1.2km

Unit load

1/8

Byte order

MSBit-LSBit

Word order

LSByte-MSByte

Address range

1 – 247

Max. frame length

256 Bytes

The following are supported as function codes:

03

Read contents of a holding register

04

Read contents of an input register

06

Write contents of a R/W register (preset single register)

For reading the registers the following therefore arises:

Address basis

Function code 

for reading

Function code 

for writing

Input register

30001

0x04

-

Holding register

40001

0x03

0x06

List of registers and functions

Abbreviations used

Explanation

UINT16

Data type unsigned integer. 16 bit

UINT32

Data type unsigned integer. 32 bit

Float32

Data type floating, 32 bit

R

Only read access possible (read only)

R/W

Read and write access possible (read/write)

Register 

(integer)

Data 

type

Channel (descrip-

tion)

Possible values

Unit

R/W

0000

UINT16

Digital input 01 
(main switch)

0: OFF
1: ON

R

0001

UINT16

Digital input 02 
(1000V DC overvolt-
age protection

0: NOK
1: OK

R

0003

UINT16

Digital input 03

0, 1

R

0004,0005

Float32

Current I

1

-30.00 … +30.00

A

R

0006, 0007

Float32

Current I

2

-30.00 … +30.00

A

R

0008, 0009

Float32

Current I

3

-30.00 … +30.00

A

R

0010, 0011

Float32

Current I

4

-30.00 … +30.00

A

R

0012, 0013

Float32

Current I

5

-30.00 … +30.00

A

R

0014, 0015

Float32

Current I

6

-30.00 … +30.00

A

R

0016, 0017

Float32

Current I

7

-30.00 … +30.00

A

R

0018, 0019

Float32

Current I

8

-30.00 … +30.00

A

R

0020, 0021

Float 32

Current I

9

-30.00 … +30.00

A

R

0022, 0023

Float32

Current I

10

-30.00 … +30.00

A

R

0024, 0025

Float32

Current I

11

-30.00 … +30.00

A

R

0026, 0027

Float32

Current I

12

-30.00 … +30.00

A

R

0028, 0029

Float32

Current I

13

-30.00 … +30.00

A

R

0030, 0031

Float32

Current I

14

-30.00 … +30.00

A

R

0032, 0033

Float32

Current I

15

-30.00 … +30.00

A

R

0034, 0035

Float32

Current I

16

-30.00 … +30.00

A

R

0036, 0037

Float32

Current I

17

-30.00 … +30.00

A

R

0038, 0039

Float32

Current I

18

-30.00 … +30.00

A

R

0040, 0041

Float32

Current I

19

-30.00 … +30.00

A

R

0042, 0043

Float32

Current I

20

-30.00 … +30.00

A

R

0044, 0045

Float32

Current I

21

-30.00 … +30.00

A

R

0046, 0047

Float32

Current I

22

-30.00 … +30.00

A

R

0048, 0049

Float32

Current I

23

-30.00 … +30.00

A

R

Register 

(integer)

Data 

type

Channel (descrip-

tion)

Possible values

Unit

R/W

0050, 0051

Float32

Current I

24

-30.00 … +30.00

A

R

0052, 0053

Float32

Summed current

-480.00 … +480.00 A

R

0054, 0055

Float32

Voltage

0 … 1000.0

V

R

0056, 0057

Float32

Power

0 … 480,000

W

R

0058, 0059

Float32

Temperature 1

-40.0 … +160.0

°C

R

0060, 0061

Float32

Temperature 2

-40.0 … +160.0

°C

R

0062, 0063

UINT32

Firmware date

0xDDMMYYYY
Example:
0x040507DB
04.05.2011

R

0064, 0065

UINT32

Software version

0xBBBBMMNN
Example:
0x12510102
V1.02.1251

R

0066

UINT16

Error code

1: OK
≠1: NOK

R

0067

UINT16

Calibration status

1: OK
2: Busy
>2: Error number

R

0069

UINT16

Sync ID

1)

User code of Reg. 
0302

R

0070, 0071

Float32

Sync_current I

1

1)

-30.00 … +30.00

A

R

0072, 0073

Float32

Sync_current I

2

-30.00 … +30.00

A

R

0074, 0075

Float32

Sync_current I

3

-30.00 … +30.00

A

R

0076, 0077

Float32

Sync_current I

4

-30.00 … +30.00

A

R

0078, 0079

Float32

Sync_current I

5

-30.00 … +30.00

A

R

0080, 0081

Float32

Sync_current I

6

-30.00 … +30.00

A

R

0082, 0083

Float32

Sync_current I

7

-30.00 … +30.00

A

R

0084, 0085

Float32

Sync_current I

8

-30.00 … +30.00

A

R

0086, 0087

Float32

Sync_current I

9

-30.00 … +30.00

A

R

0088, 0089

Float32

Sync_current I

10

-30.00 … +30.00

A

R

0090, 0091

Float32

Sync_current I

11

-30.00 … +30.00

A

R

0092, 0093

Float32

Sync_current I

12

-30.00 … +30.00

A

R

0094, 0095

Float32

Sync_current I

13

-30.00 … +30.00

A

R

0096, 0097

Float32

Sync_current I

14

-30.00 … +30.00

A

R

0098, 0099

Float32

Sync_current I

15

-30.00 … +30.00

A

R

0100, 0101

Float32

Sync_current I

16

-30.00 … +30.00

A

R

0102, 0103

Float32

Sync_current I

17

-30.00 … +30.00

A

R

0104, 0105

Float32

Sync_current I

18

-30.00 … +30.00

A

R

0106, 0107

Float32

Sync_current I

19

-30.00 … +30.00

A

R

0108, 0109

Float32

Sync_current I

20

-30.00 … +30.00

A

R

0110, 0111

Float32

Sync_current I

21

-30.00 … +30.00

A

R

0112, 0113

Float32

Sync_current I

22

-30.00 … +30.00

A

R

0114, 0115

Float32

Sync_current I

23

-30.00 … +30.00

A

R

0116, 0117

Float32

Sync_current I

24

-30.00 … +30.00

A

R

0118, 0119

Float32

Sync_summed_cur-
rent

-480 … +480

A

R

0120, 0121

Float32

Sync_voltage

0 … 1000.0

V

R

0122, 0123

Float32

Sync_power

0 … 480.000

W

R

0124, 0125

Float32

Sync_temperature 1

-40.0 … +160.0

°C

R

0126, 0127

Float32

Sync_temperature 2

-40.0 … +160.0

°C

R

0149

UINT16

Relay output

0: OFF
1: ON

R/W

0200

UINT16

Device identification

2008 (124)
2007 (208)
2006 (116)
2005 (108)

R

0202

UINT16

Serial number low

e.g. 14148

R

0203

UINT16

Serial number high

e.g. 4

R

0205

UINT16

Modbus address

1 … 254

R/W

0206

UINT16

Configuration for 
current measurement 
register

2)

0: default
1: fast

R/W

Summary of Contents for Bussmann Series

Page 1: ...t description 6 Supplied components 7 Maintaining the IP rating 8 Handle operation 8 Safety Instructions 9 Electric shock 9 Burn hazards 9 Damage to the Eaton s Bussmann series combiner box 9 Product warning labels 9 Service and maintenance 9 Interlocking door and switch 10 Installation instructions 11 Unpacking and inspection 11 Electrical connections 11 Mounting 13 Monitoring solutions 14 8 stri...

Page 2: ...ction Leaflet from the Eaton s Bussmann series website at www eaton com bussmannseries The contents of this Instruction Leaflet are not part of nor do they modify any prior or existing agreement commitment or relationship The Eaton terms and conditions of sale constitute the entire obligation of Eaton The warranty in the terms and condi tions of sale is the sole warranty of Eaton Any statements in...

Page 3: ...TICE INDICATES A HAZARDOUS SITUATION WHICH IF NOT AVOIDED COULD RESULT IN PROPERTY DAMAGE Skilled worker definitions The following definitions apply as electrically instructed skilled or competent people Where in this manual an instructed skilled or competent person is referred to it is intended that they meet the description provided below for that definition Electrically instructed person Person ...

Page 4: ...4 Technical Data MN019001EN Effective November 2015 Bussmann series PV Combiner box EATON www eaton com Anatomy of an Eaton s Bussmann series combiner box ...

Page 5: ...5 Technical Data MN019001EN Effective November 2015 Bussmann series PV Combiner box EATON www eaton com ...

Page 6: ...p Non indicating fuse holders Q Positive only fuse protection M Negative only fuse protection C Both positive negative fuse protection Switch disconnect s D Disconnect switch F Fixed no disconnect switch Cenn xxAyypsh vmm PV string input output connection type h G Bottom entry glands standard output glands M Bottom entry MC4s standard output glands S Left and right side entry glands standard outpu...

Page 7: ... DETAILS Details shown in red are variable for each product The top right corner of the label states the details of the plant and country of origin of the combiner box Rating plate details are correct at time of print Supplied components The following are included in every combiner box order as stan dard The parts contained within the combiner box unit will vary dependent upon the request and desi...

Page 8: ...user responsibility to determine the necessary frequency to check and maintain any IP rating seals and or air filters dependant on the environment in which the product is installed Eaton assumes no liability for the lack of appropriate user maintenance measures IP65 rated seals IP55 rated Air Filter present on side of the enclosure m DANGER Handle operation The switch handle may be either containe...

Page 9: ...ed Internally labels are used to state the hazard presented by the live parts of the combiner box This label is highly visible on all shrouding within the combiner box The word Danger is defined as a hazardous situation which if not avoided will result in death or serious injury This indicates the level of hazard which could be encountered should the main tenance engineer fail to adhere to these w...

Page 10: ...using the key provided once the switch has been turned to the off position Figure 3 Switch handle positions A lockout tagout feature is present for the combiner box and should be used as per the image below Figure 4 Fitting of lockout tagout padlock The interlock may be overridden using the feature on the handle as per the image on the left This will allow the combiner box to be opened whilst the ...

Page 11: ...r connection where appli cable May be used for wired communi cation entry points PV DC earthing and AC mains PSU where required Side entry Example side entry view of a combiner box fitted with cable glands Positioning on this face may vary dependent on individual design If the design was fitted with MC4 connectors these would occupy the same area as the glands shown in the diagram m CAUTION Connec...

Page 12: ...ring cable into the combiner box through the gland as shown in the image below Connecting PV strings into glands Ensure the cable meets either the 10 x 38 modular fuse holders or the 14 x 51 modular fuse holders and is fully inserted so that no bare cable core is exposed Tighten the modular fuse holders using adequate torque as stated in the table in Torque values above NOTICE MC4 connections Posi...

Page 13: ...ments The following guidelines should be adhered to when mounting your combiner box Mounting the combiner box is done so at your own risk as is customer selection of a mounting location The mounting location should be in a well ventilated area and should not be a living area or office The mounting locations should be safely accessible at all times to aid any required servicing No escape routes sho...

Page 14: ... the chain configura tion the modules have doubled internally linked through connec tions top and bottom You use one bus connection as input the other as output to the next bus device The order of top or bottom is unimportant here Bus wiring for RS 485 or Modbus Connect the screen of the bus cable flat with screen termi nals no point contact We recommend that the screens are only earthed at one po...

Page 15: ...nt I8 20 00 20 00 A R 0020 0021 Float 32 Voltage 0 1000 0 V R 0028 0029 Float32 Power 0 160000 W R 0036 0037 Float32 Temperature 1 40 0 160 0 C R 0038 0039 Float32 Temperature 2 40 0 160 0 C R 0042 0043 Float32 Total current 160 00 160 00 A R 0044 0045 UINT32 Date of the firmware 0xDDMMYYYY Example 0x040507DB 04 05 2011 R 0046 0047 UINT32 Software version 0xBBBBMMNN Example 0x12510102 V1 02 1251 R...

Page 16: ...Float32 Power 0 480 000 W R 0042 0043 Float32 Temperature 1 40 0 160 0 C R 0044 0045 Float32 Temperature 2 40 0 160 0 C R 0050 0051 UINT32 Firmware date 0xDDMMYYYY Example 0x040507DB 04 05 2011 R Register integer Data type Channel descrip tion Possible values Unit R W 0052 0053 UINT32 Software version 0xBBBBMMNN Example 0x12510102 V1 02 1251 R 0054 UINT16 Error code 1 OK 1 NOK R 0055 UINT16 Calibr...

Page 17: ...7 Float32 Current I22 30 00 30 00 A R 0048 0049 Float32 Current I23 30 00 30 00 A R Register integer Data type Channel descrip tion Possible values Unit R W 0050 0051 Float32 Current I24 30 00 30 00 A R 0052 0053 Float32 Summed current 480 00 480 00 A R 0054 0055 Float32 Voltage 0 1000 0 V R 0056 0057 Float32 Power 0 480 000 W R 0058 0059 Float32 Temperature 1 40 0 160 0 C R 0060 0061 Float32 Temp...

Page 18: ...possible from PV system The metrological part is turned on only once per minute to perform the measurement and write the values into the registers The display backlight is switched off The communica tion part is permanently active Power consumption 0 1W 300 1 Data collection modes Default Simple communication With several type S1 string monitoring modules on one bus the data are collected sequenti...

Page 19: ...oring modules Procedure 1 Send a broadcast message by writing a value in register 302 sync register via the modbus address 0 broadcast address Thus in each module the actual measured values are written into the internal registers 60 to 101 and the broadcast value is transferred to register 59 2 Now read out sequentially from all modules the measured values of the individual strings from registers ...

Page 20: ...ge conditions There are three types of SPD available for your combiner box PV T1 PV T1 T2 PV T2 IEC mains T2 and Modbus RS 485 communications C2 D1 Each type of SPD is designed to safely shunt damaging overvoltage surges to ground minimising the risk of harm to the equipment and personnel Each SPD consists of a base and module When a voltage surge occurs Eaton s SPDs are designed so that only the ...

Page 21: ...21 Technical Data MN019001EN Effective November 2015 Bussmann series PV Combiner box EATON www eaton com NOTES ...

Page 22: ...22 Technical Data MN019001EN Effective November 2015 Bussmann series PV Combiner box EATON www eaton com NOTES ...

Page 23: ...23 Technical Data MN019001EN Effective November 2015 Bussmann series PV Combiner box EATON www eaton com NOTES ...

Page 24: ... 0 1509 882 600 www eaton com bussmannseries bulesales eaton com Contact your local Eaton Office Changes to the products to the information contained in this document and to prices are reserved so are errors and omissions Only order confirmations and technical documentation by Eaton is binding Photos and pictures also do not warrant a specific layout or functionality Their use in whatever form is s...

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