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UPS2000-(6 kVA-20 kVA)
Modbus Protocol Development Guide
Signal
Name
Stop
test*
2.2 Alarms
2.2.1 Signal List Description
The definitions for the UPS alarm register addresses comply with the following rules:
Register address: basic register address + UPS number x 1024
The range of the UPS number is from 1 to 4.
If the query is across registers, and a register is not defined in this table, the returned register
value is 0.
2.2.2 Alarm Signal List
Alarm
ID
0041
0041
0045
0045
0045
0045
0045
Issue 02 (2016-03-10)
Parameter
Type
Unsigned
short integer
(16 bits)
The UPS2000A does not support battery tests or the switching between equalized charging and float
charging. The signal name is marked with * to differentiate.
For example, the register address of the UPS 1 mains abnormal voltage alarm is 40155 + 1024 =
41179 = 0xA0DB; the register address of the UPS 2 mains abnormal voltage alarm is 40155 + 2 x
1024 = 42203 = 0xA4DB.
When the RMS-MODBUS01A card is connected to only one UPS, you can use 0 as the UPS number.
That is, you can directly use the basic register address to query the corresponding value.
Alarm
Alarm
Cause
ID
1
Rectifier fault
2
Rectifier fault
3
Charger alarm
4
Charger alarm
6
Charger alarm
7
Charger alarm
8
Charger alarm
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Copyright © Huawei Technologies Co., Ltd.
Range
Gain
The register
1
value is fixed at
1.
2 Modbus Card Signal List
Register
Address
Address
Length
(Number
of
Digits)
N2023
1
Basic
Register
Address
40155
40155
40155
40155
40155
40155
40155
R/W
Attribute
W
Bit
Value
0
1
4
5
7
8
9
28
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