Chengdu Ebyte Electronic Technology Co., Ltd.
E103-W03 _User Manual _EN_V1.1
Copyright ©2012–2022, Chengdu Ebyte Electronic Technology Co., Ltd
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5.6 Low power consumption
The low power consumption of the module enables the module to enter the dormant state through command operation.
After entering dormancy, it can be woken up through the pin. The way of waking up is to give the WAKEUP pin (ie
GPIO_13) a rising edge, or the serial port receives data.
5.7 serial port 3M high-speed sending
Regarding high-speed transmission, you need to pay attention to the following issues:
1. The serial port chip must be a model that can support up to 3M baud rate. The test board of our company uses FT232
series
2. The serial port assistant software must be able to support up to 3M baud rate. The software used by our company for
testing is XCOM2.6
3. Try not to connect the module to the PC through the USB converter, but directly connect to the USB3.0 port of the
PC, otherwise it is easy to lose packets
4. The module can be connected with a computer or a mobile phone to achieve 3M speed transmission. However, when
the module is connected to the module, it may be necessary to reduce the baud rate of the sending end. The specific
reduction is limited by the influence of the connection distance and requires actual testing.
5.8 Heartbeat package, registration package
The heartbeat packet registration packet is a function only available in the TCP client mode. This module supports
custom heartbeat packet data and registration packet data content..
5.9 Modbus protocol
This module supports Modbus protocol, which can realize free conversion between RTU and TCP. When using it, you
only need to pass in data from the serial port, and the module will automatically recognize and convert it into data that
conforms to the Modbus specification, and upload it to the network. Or convert the received network end data into data
that conforms to the Modbus specification and output it from the serial port.
Note:
1. The Modbus supported by this module is only for data conversion and does not support actual functional
operation. If you need to use this part of the function, please cooperate with the actual PLC device.
2. If the Modbus function is turned on, the protocol transmission will be invalid, that is, the protocol transmission
is no longer data with a fixed format, and will be converted into data that conforms to the Modbus protocol
standard.
3. Only the TCP server, TCP client, UDP, MQTT, WebSocket and P2P modes support the Modbus protocol, and
the HTTP client does not support it. The reason is that the HTTP client is a short-connection communication
method, and the server cannot actively initiate data exchange.
