Shanghai ZLAN Information Technology Co., Ltd Tel: +86-17321037177 http://www.zlmcu.com
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position.
11. MQTT Gateway
About the MQTT Gateway function please refer to <MQTT Gateway Usage>, <ZLAN
MQTT and JSON to Modbus Gateway Usage>.
12. JSON to Modbus RTU
About the JSON to Modbus RTU and other JSON usage, please refer to <JSON data
Collecting Gateway>, <ZLAN Cloud and Collecting Device Usage>, <645 Meter
upload in JSON Format>, <ZLAN MQTT and JSON to Modbus Gateway Usage>.
13. NTP Time Function
About obtain and usage of NTP time please refer to: <ZLAN NTP Time Module
Usage>.
14. Network Interface to Modify Parameters
Network interface modification parameter is a function to search and modify
device parameters like zlvircom software, that is, to manage the device and
modify parameters through the network interface of the serial port server. Suitable
for users who integrate search and configuration functions into the user's
software.
Network interface modification parameters are realized through "UDP
management port protocol", such as:
1) Computer software sends UDP broadcast packets with destination port of
1092 in the network. When the device receives the data packet, it will return
its information to the computer software to achieve the purpose of searching
the device.
2) The computer software sends the UDP modification parameter command to
the 1092 port of the device to achieve the purpose of modifying the device
parameter.
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