Chengdu Ebyte Electronic Technology Co., Ltd.
NB144 User Manual
Copyright ©2012
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Chengdu Ebyte Electronic Technology Co., Ltd.
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4.2.3 Network disconnection reconnection cycle
When the device detects that it is disconnected from the server, it periodically initiates a
reconnection request, so the "disconnection reconnection time" will not affect the connection
establishment time under normal circumstances. Users can customize the configuration request cycle,
and the default is 5s.
4.2.4 Timeout restart (no data restart)
The device monitors data sending and receiving. If the device does not send and receive data for
a long time, the device will automatically restart to ensure the stability of long-term work.
The default cycle of this function is 30 minutes, and the user can customize the cycle of
restarting with timeout or no data.
4.3 Hardware factory reset
Reload pin of the device for 5s until the N ET indicator light stops flashing, keep the NET indicator
on for 5s, and the device is restored to factory.
4.4 Device working mode
4.4.1 TCP Server
TCP Server is the TCP server. In TCP Server mode, the device listens to the local port, accepts the
connection request from the client and establishes a connection for data communication. When the
Modbus gateway function is turned off, the device sends the data received by the serial port to all
client devices connected to the device.
The number of clients that can be accessed by the server is dynamically adjusted. First, ensure that
each channel of the 4 channels can establish a complete communication link. In addition, the device
also has 12 communication links for dynamic access. For example, if the device turns on the 4
-channel server mode, each The server can access 4 client devices, or if the device opens 1 server, the
server can connect to 13 client devices. If the number of client devices exceeds the access number,
the device will refuse to connect.
