
UPS2000-(6 kVA-20 kVA)
Modbus Protocol Development Guide
2 Modbus Card Signal List
Issue 02 (2016-03-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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2
Modbus Card Signal List
2.1 Collection and Configuration
2.1.1 Signal List Description
The signal names are the meanings of the signals.
The parameter types are the internal storage states of the signals in the RMS-MODBUS01A
card.
The gains are to ensure that in the Modbus communication, all data are transmitted in the
format of unsigned short integers to avoid the Modbus frames transmitting overly complex
data.
For the R/W attributes, R is read only, W is write only, and RW is read and write.
For the register addresses, N is the UPS number with a range from 1 to 4. This number is
assigned by the RMS-MODBUS01A card. You can identify any UPS number by its
corresponding ESN number.
For example, the register address of the UPS 1 phase A input voltage is 11000 = 0x2AF8.
2.1.2 Collection Signal List
Signal
Namee
Parameter
Type
Gain Unit or
Range
Register
Address
Address
Length
(Number
of Digits)
R/W
Attribute
Input phase
voltage (A)
Floating
point
10
V
N1000
1
R
Input phase
voltage (B)
Floating
point
10
V
N1001
1
R
Input phase
voltage (C)
Floating
point
10
V
N1002
1
R