Case Study: Integrating CANopen Devices with PROFINET Controllers

Case Study

How the Intelligent Logistics Drive System Integrates Electric Rollers

(CANopen Devices) with PROFINET Controllers

Application Scenario

In a smart factory environment, an efficient logistics system requires an integrated and systematic approach, organically combining various adaptive logistics hardware and software technologies for different operational scenarios.

CANopen is a traditional industrial automation communication protocol, commonly used by slave products such as electric rollers. In a project in Suzhou, the Siemens S7-1500 connects up to 50 electric rollers controlling the position sensors for goods triggering, handling the acceleration and deceleration control of goods.

As is well known, CANopen signals cannot be directly connected to the PROFINET communication system. Equipment suppliers often focus on their core business development and may not spend a lot of time and labor costs developing the PROFINET protocol.

Case Study: Integrating CANopen Devices with PROFINET Controllers

To quickly solve the above problems, we use the ET005Pro protocol gateway to convert the CANopen slave product signals into PROFINET signals, easily achieving the connection between the PROFINET communication system and various CANopen slave nodes, with stable and reliable signal transmission.

Case Study: Integrating CANopen Devices with PROFINET Controllers

Case Study: Integrating CANopen Devices with PROFINET Controllers

Topology Diagram of the Intelligent Logistics Drive System

ET005Pro High-Performance Gateway

To improve data processing speed and reduce network system latency, the EnTalk series gateways provide a new architecture design for high-performance applications. The gateway uses two Xone (embedded unified boards) to independently implement different protocols. The two Xone exchange data through a high-speed link. The diagram below shows the framework of the ET005Pro Ethernet to Serial conversion, where Ethernet is the PROFINET industrial Ethernet protocol and Serial is the CAN protocol.

Case Study: Integrating CANopen Devices with PROFINET Controllers

ET005Pro High-Performance Gateway Product Image

Gateway Configuration

After completing the hardware connection, we need to configure and parameterize the slave device electric rollers using the PC configuration tool EnTalk CANopen Manager. The node address, process data, communication cycle, and heartbeat monitoring parameters of the CANopen slave can all be set using this software.
Through heartbeat time configuration, we can monitor the offline status of each slave device. Meanwhile, the gateway device supports diagnostic data reporting, allowing users to directly call the corresponding function blocks in the PN side, TIA Portal software to manage the status of each CANopen slave.
Case Study: Integrating CANopen Devices with PROFINET Controllers

Heartbeat Time Configuration

The configuration software parses the EDS files of each slave, allowing the process data content and length of each slave device to be configured by adding PDOs.
Case Study: Integrating CANopen Devices with PROFINET Controllers

Process Data Configuration

On-Site Communication Sniffer Testing

Testing the communication cycle time of a specific slave device to meet on-site process control requirements.

The cycle time for the optical sensor trigger signal from the electric roller to the CANopen bus is 10.18ms. The gateway IO update cycle time is 2ms, with a response time of less than 10ms.

Case Study: Integrating CANopen Devices with PROFINET Controllers

On-Site Optical Trigger Time Diagram

EnTalk Series Family Products

As a member of the family, the ET005Pro gateway connects multiple CANopen slave devices to the PROFINET network, achieving interconnectivity between CANopen and PROFINET networks. The EnTalk series gateways cover the conversion between various mainstream field buses and industrial Ethernet, supporting EtherCAT, EtherNet/IP, Modbus RTU/TCP, PROFIBUS DP, CC-Link IEF Basic, POWERLINK, and more protocols, and is continuously improving.

Case Study: Integrating CANopen Devices with PROFINET Controllers

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