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
