Settings in the System Manager

	Appearance of the variables Depending on the platform used (PC or EL66xx), the publisher/subscriber will appear differently. A publisher/subscriber can be created: on a PC network interface, see Beckhoff network variables - Settings on an EL66xx

The following sample illustrates the setup for a publisher and a subscriber variable (each with a size of a 16-bit word) on an EL6601 under TwinCAT 2.10.

Settings in the System Manager 2: — Network variable sample configuration on an EL6601

Process data:

"CycleIdx": must be served by the application in order to be evaluated on the subscriber side
"CycleIndex": CycleIdx counterpart on the subscriber side.
"VarData": the data to be sent.