Switch quantity acquisition module ZSLR311 LORA RTU

Switch quantity acquisition module ZSLR311 LORA RTUIt is an industrial grade LoRa RTU developed and produced by Chengdu Zhongshan Technology, which supports RS232/485 serial port to LoRa conversion, supports 2-channel switch input/2-channel relay output, and supports SX1278/433M/8-kilometer spread spectrum. Support script programming, transparent transmission of serial data, 50uA low power consumption, 3-8km long-distance communication, and multiple network communication modes.

Switch quantity acquisition module ZSLR311 LORA RTUHaving multiple working modes, it can meet different application scenarios and achieve long-distance communication of 3-8km.

Power consumption priority mode: Short delay in data transmission/reception, close wireless transmission distance (open and visible environment, measured to be about 3KM).

Distance priority mode: works in long-distance communication, with large data transmission/reception delay, high power consumption, and long wireless transmission distance (open visual environment, measured to be about 8KM).

Balance mode: The device defaults to balance mode, taking into account speed, distance, and power consumption. The wireless transmission distance is relatively long (open and visible, measured to be about 6KM).

High anti-interference sensitivity, LoRa technology itself has high receiving sensitivity (RSSI) and strong signal-to-noise ratio (SNR), coupled with our proprietary modulation and demodulation technology and stable and reliable product performance, the anti-interference ability of LoRa wireless modules is very strong.

Low power consumption, the ZSLR311 device adopts a 32-bit ARM ultra-low power CPU as the core, combined with Zhongshan Technology's unique RF communication processing technology, to achieve low standby working current of the whole machine: 50uA. Under the power consumption of 50uA, the ZSL device is still in the working state and can receive/send data at any time, not the power consumption under sleep shutdown (the above data was measured in limited power consumption mode).

Powerful expansion function, supporting switch input (DI), relay output (DO), and power output (VO).

Switch quantity acquisition module ZSLR311 LORA RTUWiring port:

The PVC panel of the equipment has marked the definitions of each interface. It should be noted that ZSLR311 provides two types of power interfacesIt can only be used as a binary option and cannot be connected simultaneously.

Switch quantity acquisition module ZSLR311 LORA RTULED indicator light description:

Switch quantity acquisition module ZSLR311 LORA RTUSerial port description:

The RS232 interface (RXD TXD GND) and 485 interface (AB) marked on the panel can only be used as a binary choice.

If used simultaneously, it is necessary to ensure that the two serial ports of the RTU are staggered in time when receiving data from the client, otherwise conflicts may occur.

Switch quantity acquisition module ZSLR311 LORA RTUUsing self-developed technology to support script programming, ZSLR311 supports script programming function, allowing users to flexibly customize script files without the need for additional controllers or relying on data platforms to issue collection instructions. It can actively collect data from directly connected instruments and report it to the platform. The maximum data collection capacity can reach 50 or more instruments and meters, significantly reducing hardware costs. The reporting logic for DI (switch quantity collection) can be freely defined in the script file. The control logic for DO (relay output) can be freely defined in the script file.

Switch quantity acquisition module ZSLR311 LORA RTUIt has multiple network communication modes, traditional star network, master device, and can communicate with any node device.

Switch quantity acquisition module ZSLR311 LORA RTUHaving a flexible and powerful self-organizing network:

Broadcast communication, where each device communicates with each other within the same network.

On demand communication allows for point-to-point communication between any two devices within the same network

Multicast communication, under the same network, can group single or multiple devices together to achieve communication between groups.

*The above three networking methods can be combined and used within the same network.

Automatic relay communication mode is not limited:

In pure relay mode, the device forwards data immediately after receiving it.

In adaptive mode, it serves as both a node and a relay, integrating two functions to intelligently determine data sources and selectively process valid data.

LoRa gateway:

The ZSLR311 LoRa RTU device can be combined with Zhongshan 2G/3G/4G/NB IoT DTU devices to form a LoRa gateway, enabling local networking and remote monitoring between devices. The 2G/3G/4G/NB IoT DTU devices also support Zhongshan IoT Cloud, allowing for device to device (different types of devices can also communicate) and device to platform data communication without the need for users to establish data centers or care about protocols.

*ZSLR311, in conjunction with our company's 2G/3G/4GDTU, can facilitate the establishment of a Lora gateway for remote data transmission.

Use serial port or network configuration parameters:

LoRa devices not only allow direct configuration of parameters using local serial port cables, but also support wireless configuration of parameters for remote devices. As shown in the following figure: Device A is connected to a computer through a serial port cable, and using the graphical configuration software provided by our company, it is convenient and fast to configure the parameters of local device A, as well as configure the parameters of remote device B wirelessly. When configuring parameters wirelessly, it is necessary to ensure that the local device and the remote device are on the same network.

Switch quantity acquisition module ZSLR311 LORA RTUAdopting industrial grade design, hardware enhanced protection, and built-in dual watchdog:

Adopting an independent 32-bit ARM core CPU. Carefully designed external watchdog circuit, stable operation without crashing, suitable for various on-site environmental applications. Internally integrated high reliability composite watchdog, dual dog soft/hard mode for mutual backup, DTU does not crash, ensuring the stability of data transmission!

Switch quantity acquisition module ZSLR311 LORA RTUAdopting advanced SMT production technology, overcurrent, overvoltage, anti reverse connection, anti misconnection, and interface surge protection; The high sealing metal shell is baked with paint technology, which has characteristics such as corrosion resistance, moisture resistance, and dust prevention.