Chengdu Ebyte Electronic Technology Co,;Ltd E70 -DTU (433NW30) user manual
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co,;Ltd
10
before sending data.
Long address transmission. When configured to long address transmission, the user must spe cify the long address
before sending data.
6.2.
Normal node
If the user configures the operating mode 4,
（
M0=0,M1=1
）
or the user configures the operating mode as 1, the modem
works in the normal node mode. In the normal node mode, the data can be received and se nt in real time. It is suitable for
application with low power consumption but high real-time requirement.
6.3.
Dormant node
If the user configures the operating mode as 4, M0=1, M1=0, or the user configures the operating mode as 2, the
modem works in the dormant node mode. the device request if there is data transmitted by coordinator according to the
user-configured sleep period, The non-broadcast data sent by the coordinator will be temporarily stored inside the
coordinator. The device is in low power consumption during the sleep period. If the sleep node wants to send data actively,
the user should send no more than two bytes to wake up the device. After the byte data is used to wake up the device and
the wake-up byte is sent, the user needs to wait for more than 100ms to send the real data. After the wake-up byte is sent,
the user needs to wait for 100ms to send the real data and the wake-up data will be discarded. After the device was waken
up, the modem will open the serial port, receiving AT command, if more than 2 seconds, there is no data input, the modem
will close serial port and go to sleep. The sleep node is suitable for applications where the user requires high power
consumption but does not require high real-time data.
6.4.
Configuration Mode
When M0=1,M1=1,the device will switch to configuration mode. In the this mode, the serial port parameters are:
115200, 8N1, and the average operating current is 2uA. In this mode, the modem cannot send and receive data. When the
external AT instruction is configured, needs the serial port to send no more than two bytes data to wake up the device. A fter
the wake-up byte is sent, the user needs to wait for 100ms to send the real data and the wake -up data will be discarded.
After the device was waken up, the modem will open the serial port, receiving AT command, if more than 2 seconds, there
is no data input, the modem will close serial port and go to sleep.
6.5.
Mode switching
No
Remarks
1
The user can decide the operating mode by the combination of M1 and M0
2
In any work mode, the user can configure the operating mode through the AT command
3
When M0=1,M1=1, the serial port parameters are 115200, 8N1(fixed)
