Udp - Siemens SIMATIC S7 System Manual
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ERROR
STATUS
0
7002
1
8085
1
8086
1
8088
1
80A1
1
80C3
1
80C4
Connection Ethernet protocols
Every CPU has an integrated PROFINET port, which supports standard PROFINET
communications. The TSEND_C, TRCV_C, TSEND and TRCV instructions all support the
TCP and ISO on TCP Ethernet protocols.
Refer to "Device Configuration: Configuring the Local/Partner connection path (Page 118)"
for more information.
See also
Parameters for the PROFINET connection (Page 120)
10.2.2.5
UDP
UDP is a standard protocol described by RFC 768: User Datagram Protocol. UDP provides a
mechanism for one application to send a datagram to another; however, delivery of data is
not guaranteed. This protocol has the following features:
● A quick communications protocol, because it is very hardware-intimate
● Suitable for small-sized to medium data amounts (up to 2048 bytes)
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
Description
Follow-on instruction execution (REQ irrelevant), job being processed: The
operating system accesses the data in the DATA send area during this processing
(TSEND).
Follow-on instruction execution, receive job being processed: Data is written to the
receive area during this processing. For this reason, an error could result in
inconsistent data in the receive area (TRCV).
LEN parameter is greater than the largest permitted value (TSEND) and (TRCV).
LEN or DATA parameter changed since the first instruction execution (TRCV).
The ID parameter is not in the permitted address range.
The LEN parameter is larger than the memory area specified in DATA.
Communications error:
The specified connection has not yet established (TSEND and TRCV).
The specified connection is currently being terminated. Transmission or a receive
job over this connection is not possible (TSEND and TRCV).
The interface is being reinitialized (TSEND).
The interface is receiving new parameters (TRCV).
Internal lack of resources: A block with this ID is already being processed in a different
priority class.
Temporary communications error:
The connection to the communications partner cannot be established at this time.
The interface is receiving new parameter settings, or the connection is currently
being established.
103BCommunication
10.2 PROFINET
415
- Quick Links:
- Introducing the S7-1200 Plc
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