Circutor CVM-C10 Instruction Manual page 79

CVM-C10
4�10�3�8� Device configuration variables�
All the Modbus map addresses are hexadecimal.
The 0x04 and 0x10 functions are implemented for this variable.
The device's Modbus function does not check whether the variables recorded are within the correct
margins, they are only checked when they are read from the EEPROM. So if any parameter is recorded
with an incorrect value the device will be configured with its default value.
The Modbus configuration will not take effect until the device is reset.
4�10�3�8�1� Transformation ratios�
Configuration variable
Voltage primary
Voltage secondary
Current primary
Current secondary
All variables must be programmed at the same time.
(3)
Voltage ratio x Current ratio < 600000.
(4)
Note: The ratio is between the primary and the secondary.
4�10�3�8�2� Neutral current transformation ratios (CVM-C10-ITF-IN and CVM-C10-MC-IN)�
Configuration variable
Neutral current primary
Neutral current secondary
All variables must be programmed at the same time.
(5)
This variable is only programmed for the CVM-C10-ITF-IN model.
(6)
4�10�3�8�3� Number of quadrants
Configuration variable
Number of quadrants
4�10�3�8�4� Measurement convention
Configuration variable
Measurement convention
Instruction Manual
Table 28: Modbus memory map: Transformation ratios�
Transformation ratios
Address
(3) (4)
2710 - 2711
Table 29: Modbus memory map: Neutral current transformation ratios�
Transformation ratios
(5)
(6)
Table 30: Modbus memory map: Number of quadrants
Maximum demand
Address
2B64
Table 31: Modbus memory map: Measurement convention�
Measurement convention
Address
2B86
Valid data margin
2712
2713
2714
Address Valid data margin
271A
271B
Valid data margin
0: 4 quadrants
1: 2 quadrants
Valid data margin
0: Circutor
1: IEC
2: IEEE
Default
value
1 - 599999
1 - 999
1 - 10000
1: .../1A
5: ../5 A
Default
value
1 - 10000
1: .../1A
5: ../5 A
Default
value
0
Default value
0
1
1
5
5
5
5
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