Switch quantity acquisition module ZSNR311 RTU

Switch quantity acquisition module ZSNR311 RTUNB-IoT， Supports CoAP protocol/Telecom NB-IOT IoT cloud/Industrial grade workmanship/Low power technology. This version supports DI and DO functional models, switch input, and relay output.

Switch quantity acquisition module ZSNR311Product features of NB IoT RTU:

Support power outage warning, in case of sudden power outage, activate the backup power supply and automatically send power outage warning, allowing users to understand the equipment status in real time.

Supporting accurate access to the NB-IOT network using the Telecom CoAP protocol, with a telecom NB-IOT coverage rate of over 98%. The use of mobile communication chips to connect to the telecom NB IoT network is more stable.

Zhongshan products have obtained the Telecom Cloud Testing Certificate and can access the NB-IOT network. As a pioneer in NB-IOT, Zhongshan NB-IOT devices were the first to obtain the Telecom IoT Open Platform Access Certification Certificate in 2017 and became an official member of the Tianyi IoT Product Alliance. The NB IoT communication technology developed is secure and efficient. NB IoT sends and receives data through the Telecom Cloud and requires authentication from the Telecom IoT Open Platform for network access. Not authenticated, unable to access NB IoT network)

Our independently developed technology supports script programming, and the switch quantity acquisition module ZSNR311 supports script programming function. Users can flexibly customize script files without the need for additional controllers or relying on the data platform to issue acquisition 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 acquisition) can be freely defined in the script file, and the control logic for DO (relay output) can be freely defined in the script file.

Switch quantity acquisition module ZSNR311 RTUWorking mode diagram:

After powering on ZSNR311, it will directly enter the connection state and then work according to the process shown in the figure below. The time parameters mentioned in the figure (20s, 10s, 24h) are determined by the operator's base station/core network. The power consumption parameters marked are for the low-power version, and the power consumption of NB RTU measured under BAT port 4. OV power supply conditions will be affected by the operator's base station/core network. It is recommended that customers follow on-site testing for accuracy.

*RTU enters IDLE/PSM mode and is completely controlled by the NB network communication base station. The application layer cannot intervene, and in order to keep the device online for a long time, it can only be achieved by frequently sending heartbeat packets.

Zhongshan adopts low-power technology to achieve true low-power consumption. The whole machine operates at low power consumption and cannot receive downlink data from the data center. The RTU needs to actively send data to enter connection mode before the center can issue data. After no data communication, ZSNR311 RTU automatically enters PSM mode and maintains low-power standby.

Supports easy development of multiple communication protocols, including UDP Master mode, UDP-ZSD mode based on Zhongshan encapsulation, and CoAP protocol.

Through Zhongshan IoT Cloud technology, messages can be pushed to mobile phones at any time. Devices can connect to mobile phones through Zhongshan IoT Cloud and push data messages to them in a timely manner. Support sending to multiple phones simultaneously.

Switch quantity acquisition module ZSNR311 RTUThe device supports heartbeat packet function and is in an active state. By continuously sending data and connecting to the server normally, the device is in an active state to ensure normal communication operation.

Switch quantity acquisition module ZSNR311 RTUThe development of the monitoring system is simpler and can be quickly developed using the OCX control of Zhongshan. The development of the upper computer is easier, and even without TCP programming, one can quickly establish their own monitoring center.

Dual watchdog, no downtime, using a carefully designed external watchdog circuit consisting of "communication brand module+external independent 32-bit ARM core CPU", 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!

Zhongshan IoT Cloud:

Users do not need to build their own servers to establish a low-cost center. Zhongshan IoT Cloud has four main functions: cloud transparent transmission, cloud networking, cloud push, and cloud forwarding. Create a simple and easy-to-use networking environment for users. Based on Zhongshan IoT Cloud, users can achieve virtual serial ports, point-to-point networking of devices, and mobile phone data receiving and pushing functions. The IP data forwarding function can also be developed based on IoT Cloud. Users do not need to build their own servers, and data transmission can be achieved through cloud configuration.

Switch quantity acquisition module ZSNR311 RTUSupport for Zhongshan Cloud Platform:

Industrial grade design, high sealing, dustproof, moisture-proof, metal shell anti-corrosion, acid resistant, heat dissipation. Rich expansion functions for fault free operation in a wide temperature range of -40 ℃ to+85 ℃, supporting switch input (DI) and relay output (DO).

Industrial grade design, suitable for operation in various complex environments:

Switch quantity acquisition module ZSNR311 RTUAdopting industrial grade design, the equipment has undergone continuous high load operation testing in our temperature laboratory from -40 ℃ to+85 ℃ for several days, and no abnormalities have been found; High precision SMT technology is used for welding, and no delamination was observed during the seismic testing process; The metal shell adopts baking paint technology, anti-static and corrosion-resistant, and has a high service life.

Switch quantity acquisition module ZSNR311 RTUSupport local/remote configuration upgrade:

Users do not need to go to the device site to upgrade firmware/software. They can remotely operate the device firmware/software upgrade through the monitoring center, saving manpower. The upgrade interface is fully graphical and unified with the local upgrade interface. During the remote upgrade process, the device can operate normally.

Switch quantity acquisition module ZSNR311 RTUSecondary development instructions for data collection center:

Easy to learn and quickly use wireless data transmission function, Zhongshan Technology provides free configuration software for you.