ZHC4931Manual
Public
Chengdu Zongheng Intelligent Control Co., Ltd
11
www.iotrouter.com
Actively report data direction Register address value
：
0x0001
AI actively reports the enable register address value
：
0xFFFF
AI actively reports the period register address value:
：
0x000A
AI1 ~ AI4 report parameter register address value
：
00 01 0F A0 4E 20
If the AI acquisition value is not triggered,a Modbus RTU protocol message is sent to the
designated server address by port through the 4G network every 60s.
When AI enters the threshold, it will immediately pass the 4G network to the specified
server address, The port sends a Modbus RTU protocol message once and resets the period
Modbus RTU Message example
：
55 04 08 00 03 00 01 00 03 00 1A 4F 37
Modbus TCP Message example
：
00 00 00 00 00 0B 55 04 08 00 03 00 01 00 03 00 1A
AI Active report enable register address
：
40529
（
0x0210
）
Support function code:
03 (read holding register),06 (write a single holding register), 10 (write multiple holding registers)
Inquire
：
55 03 02 10 00 01 89 A3
Query response
：
55 03 02 FF FF 88 38
（
ON
）
/55 03 02 00 00 89 88
（
OFF
）
Enable A
I active reporting function
,
Actively report the value of the enable register address to AI
：
0xFFFF
Inquire
：
55 06 02 10 FF FF 85 D3
Query response
：
55 06 02 10 FF FF 85 D3
OFF
AI active reporting function
,
Actively report the value of the enable register address to AI
：
0x0000
Write in
：
55 06 02 10 00 00 84 63
Write response
：
55 06 02 10 00 00 84 63
