• An enable of the communication is initiated via the startup bit M 180.5
(OB21/22). Thus, this communication is enabled.
• Every second (clock memory bit), a count value (DB60) is sent to the S7-1500
via the CP1543-1 using the ISO-on-TCP connection.
• After the data have been received, this count value is checked in the S7-1500
and incremented by +1. At the next send trigger of the S7-1500, it is sent back
to the SIMATIC S5. The data received by the SIMATIC S5 are transferred to
DB50.
• A simple error analysis regarding the connection status is done by storing the
indicator words and parameter error bytes.
HTB_SEND block: ANZW: MW60 PAFE: MB64
HTB_RECEIVE block: ANZW: MW50 PAFE: MB54
2.6.4 Connection configuration in the S7-1500 CPU
Prerequisite
All network-side settings of the S7-1500 CPU and of the CP1543-1 used in TIA
Portal are structured identically for all scenarios.
For the corresponding configuration steps, proceed as described in chapter 2.2.4
steps 1 and 2 of scenario 1 and complete the configuration following the steps
described in the next section.
Configuration
In this scenario 4a, the connection is parameterized via a dialog in TIA Portal. The
required connection parameter are pre-assigned and set up via a connection table
in the S7-1500 CPU.
3. In the "Device configuration” (1) of the "PLC_Sz4..”, open the "Network view”
(2). In the "Connections” tab (3), select your CPU and use the "Insert” menu
item or right-click to add a new connection.
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