Scenario 4B - Communication Via Programmed Ouc (Single Instructions) And Cp1543-1; Mode Of Operation - Siemens SIMATIC S5 Manual

2 Engineering
Scenario 4b – Communication via programmed OUC
2.7
(single instructions) and CP1543-1
2.7.1

Mode of operation

Overview
In this scenario, the SIMATIC S5 actively establishes an ISO-on-TCP connection
to the S7-1500 CPU via the CP1430 TCP using the CP1543-1.
On the S7-1500 CPU end, the programmed connection is set up passively via the
OUC block TCON by the user program and is available for establishing the
connection of the partner. The data then are sent and received via the blocks
TSEND and TRCV.
For this connection, the SIMATIC S5 uses the standard handling blocks
SYNCHRON/SEND/RECEIVE. In the CP1430 TCP, the ISO-on-TCP connection in
the SIMATIC S5 is configured as an "active" duplex connection.
Note This scenario 4b is almost identical to scenario 2b. For this reason, please refer
to the corresponding sections of scenario 2 (chapter 2.4) in case of identical
chapters.
Flow chart
Sequence of the parameterized OUC communication between S7 and S5 via single
instructions and CP1543-1
The figure below schematically shows the connection established and the data flow
between SIMATIC S5 and SIMATIC S7-1500 using the programmed SEND and
RECEIVE mechanism via ISO-on-TCP.
SIMATIC S5 CPU
OB1
FB40
RECEIVE
RECEIVE
Ethernet Communication (ISO on TCP) between SIMATIC S5 and
SIMATIC S7-1500 Controllers
Entry-ID: 109482475, V1.2,
HTB
SYNCRON
SEND
1
SEND job trigger
HTB
SEND
SEND Value 1
ALL Value 2
...
...
...
RECEIVE
2
RECEIVE ready to receive
HTB
3
Value 1
Value 2
...
...
ALL
...
07/2019
CP1430 CP1543-1
Conn.
TCP
establ./disconn.
CR
Conection
Connection
configuration
CC
A_NR
TSAP 1
SEND/RCV
...
Acknowledgment
Data
Acknowledgment
Data
SIMATIC S7-1500 CPU
CONNECT
TCON
Connect
conn.
passive
ID 4
4
TSAP 1
TDISCON
RECEIVE
TRCV
Value 1
Value 2
5
...
SEND
TSEND
Value 1
Value 2
...
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