57
Instruction Manual
CVM-C4
7�3�5�- DEVICE CONFIGURATION VARIABLES
All Modbus map addresses are in Hexadecimal format.
Function 0x10
is implemented for this variable.
7�3�5�1� Input configuration
Table 24: Modbus Memory Map: Input configuration
Input configuration
Variable
Format
Address
Valid data range
Measurement system
int
808
Byte 1:
0:
n.34
, three-phase network measuring with 4-wire.
1:
n.33
, three-phase network measuring with 3-wire .
2:
n.12
, single-phase measuring
Network frequency
Byte 0:
0:
50 Hz -
1:
60 Hz
Primary voltage
long
80E - 80F
0.001 ... 100 kV
Secondary voltage
int
80A
1... 6660 V (0.1V units)
Primary current
long
810 - 811
0.001 ... 20 kA
Secondary current
int
80B
1... 6 A
7�3�5�2� RS-485 Communications
Table 25: Modbus Memory Map: RS-485 Communications
RS-485 Communications
Variable
Format
Address
Valid data range
Modbus address
int
804
Byte 1:
1... 247
Baud rate
Byte 0:
0:
1200 bps -
1:
2400 bps -
2:
4800 bps -
3:
9600 bps -
4:
19200 bps
Data format
int
805
Byte 1:
0:
n,8,1 : no parity, 8 data bits, 1 stop bit
1:
e,8,1 : even parity, 8 data bits, 1 stop bit
2:
o,8,1 : odd parity, 8 data bits, 1 stop bit
3:
n,8,2 : no parity, 8 data bits, 2 stop bit
7�3�5�3� Relay Outputs
Table 26: Modbus Memory Map: Relay Outputs
Relay outputs
Variable
Format
Address
Valid data range
Relay 1 mode
int
81A
0:
Output is disabled
1:
Alarm output
2:
Remote control output
Relay 2 mode
int
822
Relay 1 pulse duration
int
81B
00,00
(7)
... 99.99 s
Relay 2 pulse duration
int
823
