This section contains information on the following topics:
- X_SEND: Send data to a communication partner outside the local S7 station (S7-300, S7-400)
- X_RCV: Receive data from a communication partner outside the local S7 station (S7-300, S7-400)
- X_GET: Read data from a communication partner outside the local S7 station (S7-300, S7-400)
- X_PUT: Write data to a communication partner outside the local S7 station (S7-300, S7-400)
- X_ABORT: Abort an existing connection to a communication partner outside the local S7 station (S7-300, S7-400)