Overview
EtherNet/IP uses the TCP/IP and UDP/IP protocols to implement both explicit and implicit messaging.
This chapter explains the 140CRP31200 remote I/O head module and its use of explicit messaging for request-and-reply communications for non-real-time information (like configuration and diagnostic data). A network node that receives a TCP/IP-encapsulated explicit message processes the message and generates a response.
NOTE: The 140CRP31200 module can process 16 MBP_MSTR blocks
per MAST cycle.
NOTE: If you receive a detected
error message — stating that the 140CRP31200 module does not have a link (has no cable), MSTR functionality
may not be available. If this happens, check that your cables are
connected properly.
This chapter describes how to use both Control Expert function block logic and the Control Expert interface to send explicit messages.