Eaton Bussmann Series - Monitoring Unit Specifications; 8-String Monitoring Units

15
Technical Data MN019001EN
Effective November 2015
Bussmann series
PV Combiner box
EATON www.eaton.com
8 string monitoring units
Interface parameters
The type S1 string monitoring module PVCBM-GR8 supports the
modbus RTU protocol with the following interface parameters:
Baud rate 19.2 …115.2 Kb/s
Format 8n1, 8e1 or 8o1
Maximum 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 function codes are supported:
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 it holds:
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 float, 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 surge protection
0: NOK
1: OK
R
0003 UINT16 Digital input 03 0, 1 R
0004, 0005 Float32 Current I
1
-20.00 … +20.00 A R
0006, 0007 Float32 Current I
2
-20.00 … +20.00 A R
0008, 0009 Float32 Current I
3
-20.00 … +20.00 A R
0010, 0011 Float32 Current I
4
-20.00 … +20.00 A R
0012, 0013 Float32 Current I
5
-20.00 … +20.00 A R
0014, 0015 Float32 Current I
6
-20.00 … +20.00 A R
0016, 0017 Float32 Current I
7
-20.00 … +20.00 A R
0018, 0019 Float32 Current I
8
-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
0048 UINT16 Error code 1: OK
≠1: NOK
R
Register
(integer)
Data
type
Channel (descrip-
tion)
Possible values Unit R/W
0059 UINT16 Sync ID
1)
User code of reg.
0302
R
0060, 0061 Float32 Sync_current I
1
1)
-20.00 … +20.00 A R
0062, 0063 Float32 Sync_current I
2
-20.00 … +20.00 A R
0064, 0065 Float32 Sync_current I
3
-20.00 … +20.00 A R
0066, 0067 Float32 Sync_current I
4
-20.00 … +20.00 A R
0068, 0069 Float32 Sync_current I
5
-20.00 … +20.00 A R
0070, 0071 Float32 Sync_current I
6
-20.00 … +20.00 A R
0072, 0073 Float32 Sync_current I
7
-20.00 … +20.00 A R
0074, 0075 Float32 Sync_current I
8
-20.00 … +20.00 A R
0076, 0077 Float32 Sync_voltage 0 … 1000.0 V R
0078, 0079 Float32 Sync_power 0 … 160000 W R
0080, 0081 Float32 Sync_temperature 1 -40.0 … +160.0 °C R
0082, 0083 Float32 Sync_temperature 2 -40.0 … +160.0 °C R
0084, 0085 Float32 Sync_total_current -160.00 … +160.00 A R
0099 UINT16 Relay status 0: OFF
1: ON
R/W
0200 UINT16 Device ID e.g. 2005 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 Type of current mea-
surement
1)
0: OFF (Factory
setting)
1: Fast, 20ms
0208 UINT16 Response delay in ms
3)
0 … 250 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
1200Bd 0 | 100 | 200
2400Bd 1 | 101 | 201
4800Bd 2 | 102 | 202
9600Bd 3 | 103 | 203
19.2kBd 4 | 104 | 204
38.4kBd 5 | 105 | 205