The wireless data transmission module can be externally connected with two channels 0-5V or 0-20mA sensors, and according to the set sampling time, the sensor is sampled regularly, when the sampling value is greater than the upper limit or less than the lower limit alarm threshold (the alarm range can be set by software), trigger the alarm and send the alarm information to the management platform through wireless network;
The digital input channel of wireless data transmission module has a built-in weak pull-up resistor, which is normally high level. When the input channel level is reversed, trigger and report the data, and send the current level status to the management platform through the wireless network;
The module has low power consumption mode and normal operation mode. The default mode is low power consumption mode:
- Low power consumption mode:
After sending data, the system enters into low power consumption mode, when the timing report or sampling time is reached, the system wakes up and samples. When the input level of digital channel turns over, the system will also wake up from the low power consumption state and report information.
NB-IoT module works in PSM mode in low power consumption mode.
- Normal mode:
The system does not enter into low power consumption, NB-IoT mod works in DRX mode.