Huawei UPS2000 - Frame Format Examples

UPS2000-(6 kVA-20 kVA)
Modbus Protocol Development Guide
1 Communication Protocol
Issue 02 (2016-03-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
13
Exception Code
2 byte
N/A
1.5.3.3 Frame Format Examples
The following are some request examples of the read device identifiers of the basic device
identifiers:
In this example, all objects are returned to one response PDU.
Request
Response
Domain
Value
Domain
Value
Function Code
0x2B
Function Code
0x2B
MEI Type
0x0E
MEI Type
0x0E
ReadDevID Code
0x01
ReadDevID code
0x01
Object ID
0x00
Consistency Level
0x01
More
0x00
Next Object ID
0x00
Object Number
0x03
Object ID
0x00
Object Length
0x16
Object Value
"Company
identifier"
Object ID
0x01
Object Length
0x0A
Object Value
"Product code"
Object ID
0x02
Object Length
0x05
Object Value
"V2.11"
If one device needs several transactions to process responses, execute the following
transactions.
First transaction:
Request
Response
Domain
Value
Domain
Value
Function Code
0x2B
Function Code
0x2B