Siemens SIMATIC S5 Manual page 76

2 Engineering
Table 2-22
No.
1 Startup of the SIMATIC S5 and synchronization with the CP1430 TCP.
2 The job trigger of the OUC block TSEND_C is performed every second. With the
first triggering, the block establishes an active connection. If the connection has
been established successfully, the data are sent to the SIMATIC S5. The connection
remains established.
3 The SIMATIC S5 transfers the SEND job to the CP1430 TCP via HTB SEND. The
data are transferred from the SIMATIC S5-CPU (data block) to the CP1430 TCP via
the SEND ALL handling block.
4 The received data are transferred to the S7-1500 CPU via the cyclic processing of
the OUC block TRCV. If the data have been received successfully, this is shown by
a positive acknowledgment and signaled at block parameter NDR. Otherwise, a
negative acknowledgment will be sent for the job.
5 The cyclic processing of the HTB RECEIVE block in the S5-CPU ensures readiness
to receive between the CPU and the CP1430 TCP. The data are transferred from
the CP1430 TCP to the data block of the SIMATIC S5-CPU via the RECEIVE ALL
handling block.
2.8.2 Communication program in the SIMATIC S7-1500
The following blocks contain the communication program in the S7-1500 CPU.
Overview
OB 100
Startup
OB 1
Main
Ethernet Communication (ISO on TCP) between SIMATIC S5 and
SIMATIC S7-1500 Controllers
Entry-ID: 109482475, V1.2,
RecvData
SendData
FB 6
ConnManager
ParamID6
User
blocks
07/2019
Process
TSEND_C
TRCV
TDISCON
OUC system
blocks
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