Siemens CP1430 TCP User Manual

2 Engineering
Ethernet Communication (ISO on TCP) between SIMATIC S5 and
SIMATIC S7-1500 Controllers
Entry-ID: 109482475, V1.2, 07/2019
67
© Siemens AG
2019 All rights reserved
2.7 Scenario 4b – Communication via programmed OUC
(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.
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.
Flow chart
OB1
SIMATIC S5 CPU SIMATIC S7-1500 CPU
SEND job trigger
CP1430
TCP
SEND
RECEIVE
Data
Data
Value 1
Value 2
…
…
…
Value 1
Value 2
…
…
…
FB40
HTB
SEND
HTB
RECEIVE
RECEIVE
ALL
SEND
ALL
CP1543-1
Conection
configuration
Connection
1
2
3
Connect
conn.
passive
ID 4
TSAP 1
TCON
Conn.
establ./disconn.
CR
CC
HTB
SYNCRON
Acknowledgment
Acknowledgment
A_NR
TSAP 1
SEND/RCV
…
RECEIVE ready to receive
CONNECT
4
5
Value 1
Value 2
…
Value 1
Value 2
…
TRCV
TSEND
SEND
RECEIVE
TDISCON

Siemens CP1430 TCP Specifications

General

Brand	Siemens
Model	CP1430 TCP
Category	Controller
Language	English