ET 200S (standard modules) -- Configuring and programming communication -- Using communication blocks

How do you program the communication blocks FB63 "TSEND", FB64 "TRCV", FB65 "TCON" and FB66 "TDISCON" in order to use the ISO-on-TCP protocol for data exchange via the integrated Industrial Ethernet interface of an S7-300 or S7-400 CPU or via the CP443-1 Adv?Description: You can use the open communication via Industrial Ethernet for data exchange via the integrated Industrial Ethernet interface