Siemens SIMATIC S7-1200

A5E33284667-AA Page 68
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200 S7-1500
Description LAD/FBD
STL
(not S7-1200)
SCL
Other instructions
Note: S stands for short,
since only one parameter is possible
✔
✔
Read data from a remote CPU
GET_S
✔
✔
Write data to a remote CPU
PUT_S
✔
✔
Send data uncoordinated
USEND_S
✔
✔
Receive data uncoordinated
URCV_S
Open User Communication
Compact instructions (…_C)
Connect and Disconnect are integrated
✔ ✔
Manage communication connection and send data via
Ethernet
TSEND_C
✔ ✔
Manage communication connection and receive data via
Ethernet
TRCV_C
✔
✔
Manage communication connection and transfer email
TMAIL_C
Other instructions
✔
✔
✔
✔
Establish communication connection
TCON
✔
✔
✔
✔
Terminate communication connection
TDISCON
✔
✔
✔
✔
Send data via communication connection
TSEND
✔
✔
✔
✔
Receive data via communication connection
TRCV