How to Conduct Data Acquisition When PLCs Lack Ethernet Ports

 

In the process of industrial digital transformation, it is necessary to perform data acquisition on various types of automation equipment, the essence of which is to achieve data acquisition from Programmable Logic Controllers (PLCs). However, for many older devices, they typically only have serial ports, rely solely on TCP communication, and may even face issues where ports are occupied. Meanwhile, new host computer systems communicate via MQTT, causing difficulties in data acquisition. This necessitates a device for protocol conversion to resolve the problem.

In response, WideIOT provides a data acquisition solution based on industrial intelligent gateways. These gateways support the acquisition of PLCs with serial ports/network ports, and are compatible with brands such as Siemens, Mitsubishi, Omron, Schneider, Delta, Inovance, Rockwell, and Beckhoff. They are capable of performing data acquisition and protocol conversion, enabling functions such as PPI to MQTT and S7 to Modbus conversions, thereby providing comprehensive and reliable data support for industrial management systems.

Solutions

  1. By adding a serial-to-Ethernet module, the gateway can acquire device status and operational parameters from PLCs in real time.

  2. By adding a touchscreen, the gateway can acquire device status and operational parameters from PLCs through the touchscreen.

  3. By enabling the gateway's serial port forwarding function, data can be forwarded to the original host computer while being acquired.

  4. It can directly acquire PLC data via serial ports and connect to the internet using 5G/4G/WIFI/Ethernet.

Application Value

  1. PLC Remote Monitoring: Real-time acquisition and monitoring of device status, process parameters, alarm signals, and other data.

  2. PLC Remote Control: Sending commands to PLCs to control the switching or starting/stopping of related devices.

  3. PLC Remote Maintenance: Providing remote network access to enable remote programming and remote uploading/downloading of programs for PLCs located in different locations.

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