CIP is an object-based technology, and data exposed over a CIP network is presented as a collection of attribute values grouped in common categories called objects. The CIP Data Representation defines how CIP devices represent data. It is a well-defined data representation, connection management, and messaging protocol that operates over an independent transport and physical layer. CIP OrganizationĬIP can actually be defined very simply. CIP provides both a common data organization and a common messaging to solve various kinds of manufacturing application problems. CIP is the core technology behind CompoNet, EtherNet/IP, DeviceNet and ControlNet. It is very understandable why Rockwell would remain committed to this technology.īut here’s a question that many of you probably can’t answer, “What is CIP?” And, even more important, where does CIP end and EtherNet/IP begin?ĬIP, the Common Industrial Protocol, is a mechanism for organizing and sharing data in industrial devices. That’s hard to achieve, and the designers did a great job with it. It has exactly the right mix of simplicity, functionality, and elegance. It’s not as plain and simple as a Modbus while not as overly complex, heavy, and burdensome as PROFINET IO. There is much to like about CIP technology. I think CIP is not only elegantly designed, it works well in practice as evidenced by the hundreds of thousands of CIP nodes in use today. From everything I have heard them say and from everything I’ve read, they are going to continue to support CIP as their primary communications technology well into the future. Over the last 20 years, the vast majority of their products have been CIP enabled. If you pay any attention to Rockwell Automation at all, you know that Rockwell Automation is 100% committed to CIP, the Common Industrial Protocol.
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