UPS2000-(6 kVA-20 kVA)
Modbus Protocol Development Guide
2 Modbus Card Signal List
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Address
Length
(Number
of
Digits)
Unsigned
short integer
(16 bits)
The register
value is fixed at
1.
The UPS2000A does not support battery tests or the switching between equalized charging and float
charging. The signal name is marked with * to differentiate.
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.
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.
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
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