ZHC4931Manual
Public
Chengdu Zongheng Intelligent Control Co., Ltd
10
www.iotrouter.com
Support function code:
03 (read holding register),06 (write a single holding register), 10 (write multiple holding registers)
Inquire
：
55 03 01 10 00 01 89 E7
Query response
：
55 03 02 FF FF 88 38
（
ON
）
/55 03 02 00 00 89 88
（
OFF
）
Enable
DI active reporting function
,
Actively report the value of the enable register address to DI
：
0xFFFF
Write in
：
55 06 01 10 FF FF 85 97
Write response
：
55 06 01 10 FF FF 85 97
OFF
DI active reporting function
,
Actively report the value of the enable register address to DI
：
0x0000
Write in
：
55 06 01 10 00 00 84 27
Write response
：
55 06 01 10 00 00 84 27
DI active reporting trigger condition:
DI active reporting is enabled and DI status changes
DI actively report that:
In particular,
when the "active report data trend" is set to Modbus TCP, the transaction unit
identifier is 0000
00 00 00 00 00 04 55 02 01 07
3.5.3.
AI actively reports
AI actively reports that:
Support settings : threshold reporting
The product reports regularly by default, with a lower threshold of 4000uA and an
upper threshold of 20000uA
Corresponding register address value reference:
