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16
Technical Data
MN019001EN
Effective November 2015
Bussmann series
PV Combiner box
EATON
www.eaton.com
16 string monitoring units
Interface parameters
The type S1 string monitoring module PVCBM-GR16 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)
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 overvoltage pro-
tection
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
Summed current
-480.00 … +480.00 A
R
0038, 0039
Float32
Voltage
0 … 1000.0
V
R
0040, 0041
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
Calibration status
1: OK
2: Busy
>2: Error number
R
0059
UINT16
Sync ID
1)
User code of Reg.
0302
R
0060, 0061
Float32
Sync_current I
1
1)
-30.00 … +30.00
A
R
0062, 0063
Float32
Sync_current I
2
-30.00 … +30.00
A
R
0064, 0065
Float32
Sync_current I
3
-30.00 … +30.00
A
R
0066, 0067
Float32
Sync_current I
4
-30.00 … +30.00
A
R
0068, 0069
Float32
Sync_current I
5
-30.00 … +30.00
A
R
0070, 0071
Float32
Sync_current I
6
-30.00 … +30.00
A
R
0072, 0073
Float32
Sync_current I
7
-30.00 … +30.00
A
R
0074, 0075
Float32
Sync_current I
8
-30.00 … +30.00
A
R
0076, 0077
Float32
Sync_current I
9
-30.00 … +30.00
A
R
0078, 0079
Float32
Sync_current I
10
-30.00 … +30.00
A
R
0080, 0081
Float32
Sync_current I
11
-30.00 … +30.00
A
R
0082, 0083
Float32
Sync_current I
12
-30.00 … +30.00
A
R
0084, 0085
Float32
Sync_current I
13
-30.00 … +30.00
A
R
0086, 0087
Float32
Sync_current I
14
-30.00 … +30.00
A
R
0088, 0089
Float32
Sync_current I
15
-30.00 … +30.00
A
R
0090, 0091
Float32
Sync_current I
16
-30.00 … +30.00
A
R
0092, 0093
Float32
Sync_summed_current -480 … +480
A
R
0094, 0095
Float32
Sync_voltage
0 … 1000.0
V
R
0096, 0097
Float32
Sync_power
0 … 480.000
W
R
0098, 0099
Float32
Sync_temperature 1
-40.0 … +160.0
°C
R
0100, 0101
Float32
Sync_temperature 2
-40.0 … +160.0
°C
R
0200
UINT16
Device identification
e.g. 2006
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
0208
UINT16
Response delay in ms
3)
0 … 250
R/W
0209
UINT16
Baud rate and parity
For values refer to
table on Page…
R/W
0300
UINT16
EcoMode
4)
0: OFF (Factory
setting)
1: ON
R/W
0302
UINT16
Sync register
1)
User code
Write: Trigger sync
R/W
Setting
Specified value (decimal)
No parity (8n1)
0 … 5
Even parity (8e1)
100 … 105
Odd parity (8o1)
200 … 205
1200 Bd
0 | 100 | 200
2400 Bd
1 | 101 | 201
4800 Bd
2 | 102 | 202
9600 Bd
3 | 103 | 203
19.2 kBd
4 | 104 | 204
38.4 kBd
5 | 105 | 205
For even parity and a baud rate of 9600 Bd enter 103 as the value.
The number of stop bits cannot be changed (always 1). The factory
setting is: no parity, 19.2 kBd