Communication
10.2 PROFINET
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
539
1 80C3
• A block with this ID is already being processed in a different priority class.
• Internal lack of resources
1 80C4 Temporary communications error:
• The connection between the user program and the communication level of the
operating system cannot be established at this time (TUSEND).
• The interface is receiving new parameters (TUSEND).
• The connection is currently being reinitiated (TURCV).
Connection Ethernet protocols
Every CPU has an integrated PROFINET port, which supports standard PROFINET
communications. The TUSEND and TURCV instructions support the UDP Ethernet protocol.
Refer to "Configuring the Local/Partner connection path" (Page 150)" in the "Device
configuration" chapter for more information.
Both partners are passive in UDP communication. Typical parameter start values for the
"TCON_Param" data type are shown in the following figures. Port numbers
(LOCAL_TSAP_ID) are written in a 2-byte format. All ports except for 161, 34962, 34963,
and 34964 are allowed.
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