Siemens Simatic Operating Instructions Manual page 92

Configuring / programming
9.3 Configuring CAN transparent
Creating and setting transmit proxies and receive proxies
1. Double-click "Transmit proxy" or "Receive proxy"
corresponding proxy is placed as a submodule in the "CAN transparent" module.
2. For receive proxies you can specify the maximum number of messages to be stored by
the receive buffer. You can define which messages are to be processed using a message
filter
Figure 9-18
Adapting I/O addresses
If necessary, you must adapt the I/O addresses assigned automatically by the TIA Portal.
This is possible, for example, in the "Device overview" window. Here you can also find the
I/O addresses used by the slots. The addresses assigned to slot 1, that is the "CAN
transparent" module, are especially important because the control and status information is
exchanged with the S7 program via these addresses. It is important for startup of the
PN/CAN LINK that the control information transmitted here from the S7 program is set
correctly.
Checking data consistency
You can check the consistency of the assignments for the receive data and transmit data as
well as the data types used with a compilation.
90
②
.
Transmit proxies and receive proxies
①
in the HW Catalog. The
SIMATIC PN/CAN LINK
Operating Instructions, 03/2018, A5E39895388-AB