Those in the following listed UTDs and FBs serve for "open communication" with other
Ethernet capable communication partners via your user program. These blocks are part
of the Siemens SIMATIC Manager. You will find these in the "Standard Library" at "Com-
munication Blocks". Please consider when using the blocks for open communication that
the partner station does not have to be configured with these blocks. This can be config-
ured with AG_SEND / AG_RECEIVE or IP_CONFIG.
UDTs
FB
Label
Connection-oriented protocols: TCP
native as per RFC 793, ISO on TCP as
per RFC 1006
Connectionless protocol: UDP as per
RFC 768
UDT 65
TCON_PAR
Data structure for assigning connection
parameters
Data structure for assigning parameters
for the local communications access
point
UDT 66
TCON_ADR
Data structure for assigning addressing
parameters for the remote partner
FBs
FB
Label
Connection-oriented protocols: TCP
native as per RFC 793, ISO on TCP as
per RFC 1006
Connectionless protocol: UDP as per
RFC 768
FB 63
TSEND
Sending data
FB 64
TRCV
Receiving data
FB 65
TCON
Establishing a connection
Configuring the local communications
access point
FB 66
TDISCON
Terminating a connection
Closing the local communications access
point
FB 67
TUSEND
Sending data
FB 68
TURCV
Receiving data
8.11 NCM diagnostic - Help for error diagnostic
The module supports the Siemens NCM diagnostic tool. The NCM diagnostic tool is part
of the Siemens SIMATIC Manager. This tool delivers information about the operating
state of the communication functions of the online CPs dynamically.
The following diagnostic functions are available:
n
Check operating state at Ethernet
n
Read the diagnostic buffer of the PROFINET IO controller
n
Diagnostic of Siemens S7 connections
Handling blocks
Siemens NCM S7 diag-
nostic
System 300S
+
Deployment Ethernet communication - productive
NCM diagnostic - Help for error diagnostic
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