This chapter explains the 140 NOP 850 00 module and its use of explicit messaging for request-and-reply communications for non-real-time information (for example, configuration and diagnostic data). A network node that receives a TCP/IP-encapsulated explicit message processes the message and generates a response.
NOTE: If you receive a detected error message — stating that the 140 NOP 850 00 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 Control Expert function block logic to send explicit messages.
This chapter contains the following topics:
