Siemens Simatic S7-1500H - Page 150

If you use HMI devices in the PROFINET ring with S7-1500H, those HMI devices must support
media redundancy.
You transfer the HMI configuration to your HMI device using the configuration and
programming software (Engineering Station).
You can connect the HMI device to the redundant system with the system IPaddress.
Connection to the redundant system is possible within and outside the PROFINET ring. The
HMI device always communicates with the primary CPU over the systemIP address in the
RUN-Redundant, RUN-Solo and STOP system states, provided you have activated the system IP
address and selected it in the connection configuration for the HMI device.
If the role of primary CPU switches to the other CPU, the communication relationship of the
HMI device also switches to the other (primary) CPU.
As an alternative to the system IP address, you can also use a device IP address to connect the
HMI device to an R/H-CPU. The HMI device then only communicates with the connected CPU.
When exchanging data via device proxy data, make sure that the IP addresses and system IP
addresses are correctly assigned to the PROFINET interfaces. You can find additional
information on devices proxy data in the STEP7 online help.
Connecting HMI devices over Industrial Ethernet and the PROFINET ring based on the example of
CPU1518HF-4PN/CPU1517H‑3PN/CPU 1515R-2 PN
The figure below is an example of how you can connect the CPU1518HF‑4PN to an HMI
device over Industrial Ethernet and the PROFINET ring. Connect the HMI devices in the same
way for the CPU1517H-3PN/CPU 1515R-2PN.
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Figure 5-49Assembly example CPU 1518HF-4PN: Connecting HMI devices over Industrial Ethernet and
the PROFINET ring
The CPUs1517H-3PN/CPU 1515R-2 PN have a PROFINET IO interface with 2 ports (X1P1R,
X1P2R) and a PROFINET interface with a port (X2P1). The CPU1518HF-4 PN has an
additional PROFINET interface with one port (X3P1).
150
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD
Application planning
5.7 Using HMI devices