Application planning
3.8 Using HMI devices
S7-1500R/H redundant system
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System Manual, 10/2018, A5E41814787-AA
3.8
Using HMI devices
Introduction
You can use the same HMI devices for the S7-1500R/H redundant system as for the
S7-1500 automation system.
If you use HMI devices in the PROFINET ring with S7-1500R, those HMI devices must
support media redundancy; we also recommend that you use the H-Sync forwarding
function.
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 the 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.
Summary of Contents for Simatic S7-1500H
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