1, the concept of CIP combing
CIP is the application layer and provide a common apparatus described as open fieldbus DeviceNet ControlNet EtherNet / IP networks, is based on the CIP protocol objects using producer / consumer model, divided into packets explicit and implicit two kinds of packets Happening. The common configuration file format is the EDS (Electronic Data Sheet), while CIP independent physical layer and data link layer
2, error correction on the concept of CIP Safety
Has been on the earlier literature has been called the CIP Saftey agreement. This concept is not yet sorted out the agreement and confused CIP protocol. CIP Safety is a combination of methods of security policies to ensure secure communications CIP protocol.
3. Introduction of CIP Common Industrial Protocol
CIP is defined to meet the requirements of various industrial protocols applications services and business practice, combined with CIP and CAN is DeviceNet, the same CIP in conjunction with TCP / IP and the formation of the EtherNet / IP, then the CIP Safety as the newest extension of the application layer, CIPSafety combined with the CAN will have a DeviceNet Safety, CIP Safety and the same TCP / IP Ethernet there EtherNet / IP Safety,
It is not that we can simply say that a CIP Safety protocol, NO, we can not say this because the definition is totally inconsistent with the agreement. Read Rockwell's files, documents and information related to the safety of the most explanatory CIP and EtherNet / IP definition, it is for CIP or how to implement measures to guarantee a safe and secure communications for EtherNet / IP. That is more direct SSL or TLS protocol used to secure communications protocol. So safety is the core of CIP Safety TLS security assurance techniques, but only just over TLS even if the application in the CIP, CIP Safety of security measures in addition to TLS
