Siemens SIMATIC S7-300 Reference Manual page 67

Basic instructions
Communication with iSlave
✔ ✔
Read data of a communications partner within
own S7 station
✔ ✔
Write data of a communications partner within
own S7 station
✔ ✔
Abort connection to the communications
partner within own S7 station
PROFINET CBA
✔ ✔
Update inputs of the user program interface
✔ ✔
Update outputs of the user program interface
✔ ✔
Break DP interconnections
MPI communication
✔ ✔
Send data to communications partner outside
own S7 station
✔ ✔
Receive data from communications partner
outside own S7 station
✔ ✔
Read data from communications partner
outside own S7 station
A5E33285102-AB
Extended instructions
Description
Technology
STL
LAD / FBD
(not S7-1200)
I_GET
I_PUT
I_ABORT
PN_IN
PN_OUT
PN_DP
Note: X stands for the MPI interface
X_SEND
X_RCV
X_GET
Communication
SCL
Page 66