I own a Siemens S7-1200 PLC and want to access its tags using my Allen-Bradley ControlLogix PLC. These two controllers operate on different communication protocols, Ethernet/IP and Profinet. Is there a way to achieve this? Can I configure the OPC server to enable communication between the two controllers? Any guidance on how to make this connection work would be appreciated. Thank you.
Siemens offers a comprehensive library of resources for SIOS support, available at industry.siemens.com. This valuable repository provides information and assistance for a wide range of Siemens products and services.
Consider using Modbus TCP as an option for communication. Siemens offers sample programs for CIP communication, but Modbus TCP may be a simpler choice. Best of luck in your endeavors!
Our recent integration of eXware 703 as a gateway has facilitated seamless communication between Siemens PLCs on Profinet and Omron PLCs on EtherCAT. Additionally, the eXware 703 is capable of retrieving data from third-party OPC servers and transmitting it to the Omron PLC. It also has the ability to communicate using Ethernet/IP. This IoT Gateway for Industrial Digitization by EXOR ensures a smooth flow of data from the SOM level, through the gateway, field devices, and up to SCADA and Master level HMI systems, comprehensively addressing current and future needs in industrial automation. Learn more at www.exorint.com.
The most straightforward way to connect an S7-1200 to a ControlLogix system is through a link provided by @simjon71. Alternatively, OPC UA integration is possible. With TIA V16, the S7-1200 can function as an OPC UA server while the ControlLogix can act as an OPC UA client. However, it is important to note that the performance may be limited, making it suitable for handling only a few tags at a moderate frequency. In addition, the S7-1200 supports Modbus TCP, serving as both a client and server. For more information on utilizing Modbus TCP with the S7-1200, refer to this link: https://cache.industry.siemens.com/dl/files/340/102020340/att_118119/v6/net_modbus_tcp_s7-1500_s7-1200_en.pdf
Implementing Modbus communication on a 1200 is straightforward. I have completed several projects involving Wago 750-88x and Click PLCs. Follow the link shared by Jesper to get started. The efficiency of data retrieval depends on the volume of data you require. Dealing with the Rockwell side of Modbus can be challenging. I have included screenshots featuring a 1200 and a Click PLC. To simplify the process, I suggest using a Gateway.
Yes, you can certainly configure an OPC server as a bridge between the two controllers. You'll need an OPC client functionality within the Allen-Bradley ControlLogix PLC and an OPC server functionality for the Siemens S7-1200 PLC. Matrikon, for instance, offers an OPC server for Siemens PLCs that allows for Profinet communication. The key lies in ensuring the PLC tags are configured in a way that both PLCs can comprehend them. Make sure you're familiar with both protocol suites to navigate any potential discrepancies.
Absolutely, you can establish communication between the two. One best practice would be using a Profinet to Ethernet/IP gateway; this hardware will effectively bridge the two protocols. As for the OPC server, it pretty much translates for different protocols, making it possible to create a 'common language' between these two PLCs. However, detailed configurations can vary based on the PLC and OPC server models, so I recommend researching specifics or reaching out directly to the manufacturers for more precise steps to take.
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Answer: - Yes, it is possible to establish communication between a Siemens Profinet PLC and an Allen-Bradley Ethernet/IP PLC for accessing tags, even though they operate on different protocols.
Answer: - Yes, configuring an OPC server is a common method to facilitate communication between controllers using different protocols like Profinet and Ethernet/IP.
Answer: - To establish communication between the Siemens S7-1200 PLC and Allen-Bradley ControlLogix PLC, you may need to utilize an OPC server and configure it appropriately to ensure seamless tag access between the two controllers.
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