This section contains information on the following topics:
- Overview (S7-300, S7-400)
- Functional description of instructions for Open User Communication via Industrial Ethernet (S7-300, S7-400)
- Assigning parameters for communications connections with TCP and ISO on TCP (S7-300, S7-400)
- Assigning parameters for the local communications access point with UDP (S7-300, S7-400)
- Structure of the address information for the remote partner with UDP (S7-300, S7-400)
- Relationship between CPU and protocol variant used (connection_type) and transferable data length (S7-300, S7-400)
- Examples of parameters for communications connections (S7-300, S7-400)
- TCON: Establish communication connection (S7-300, S7-400)
- TDISCON: Terminate communication connection (S7-300, S7-400)
- TSEND: Send data via communication connection (S7-300, S7-400)
- TRCV: Receive data via communication connection (S7-300, S7-400)
- TUSEND: Send data via Ethernet (UDP) (S7-300, S7-400)
- TURCV: Receive data via Ethernet (UDP) (S7-300, S7-400)
- IP_CONF: Change IP configuration parameters (S7-300, S7-400)
- Data exchange using FETCH and WRITE (S7-300, S7-400)