V&T Technologies Co., Ltd.
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Appendix A Modbus Communication Protocol
135
Register
address
Name of Parameters
Register
address
Name of Parameters
Note: The virtual terminals from LSB to MSB are X1, X2, X3, X4, X5, X6, X7, AI1, AI2, AI3, Y1, Y2 and relay, bit13
~ bit15 are reserved.
Register for status word of the inverter.
Attached Table-3
Register
Name of Parameters
Precision Register
Name of Parameters
Precision
0x810B
Equipment status word 1
0x8114
Display parameters of
stopping status
According to
currently stopping
display
0x810E
Equipment status word 4
0x8116
Display parameters of
running status
According to
currently
running
display
0x8120
Reference frequency
(
Hz
)
0.01Hz
0x8180
Reference frequency
(
Hz
)
0.01Hz
0x8122
Bus voltage(V)
1V
0x8182
Bus voltage(V)
1V
0x8124
AI1
(
V
)
0.01V
0x8184
AI1
(
V
)
0.01V
0x8126
AI2
(
V
)
0.01V
0x8186
AI2
(
V
)
0.01V
0x8128
AI3
(
V
)
0.01V
0x8188
AI3
(
V
)
0.01V
0x812A
DI
(
%
)
0.1%
0x818A
DI
(
%
)
0.1%
0x812C
External counts
1
0x818C
External counts
1
0x812E
Rotate speed of motor
1
0x818E
Rotate speed of motor
1
0x8130
Close loop reference (%)
0.1%
0x8190
Close loop reference (%)
0.1%
0x8132
Close loop feedback (%)
0.1%
0x8192
Close loop feedback (%)
0.1%
0x8134
Reference torque(%)
0.1%
0x8194
Reference torque (%)
0.1%
0x8136
Operating frequency (Hz)
0.01Hz
0x8196
Reserved
0x8138
Output current(A)
0.1A or
0.01A
0x8198
Reserved
0x813A
Output torque(%)
0.1%
0x819A
Reserved
0x813C
Output power (kW)
0.1kW
0x819C
Reserved
0x813E
Output voltage(V)
1V
0x819E
Reserved
Note
:
0x8121
~
0x819Fodd numbers are display attribute word
,
from LSB to MSB are Hex/Dec for 1bit, precision for 2bit,
modification for 2bit and unit for 3Bit.
The register addresses 0x8120 ~0x813F refer to the display parameters corresponding to P2.02, while the register
addresses 0x8180 ~0x8193 refer to the display parameters corresponding to P2.03.
The inverter of 3.7kw and below,the output current display precision is 0.01A, 5.5kw and above output current
display precision is 0.1A,