Siemens SIMATIC S7-1500 System Manual page 32

What's new in the S7-1500R/H redundant system System Manual, edition 05/2021 compared to
edition 11/2019
What's new?
New con- CPU 1518HF-4 PN
tents
Influencing switchover time
of switched S1 devices
MRP interconnection
Simulation of R/H-CPUs
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF
What are the customer benefits?
The CPU 1518HF-4 PN expands the R/H-CPU
portfolio with an HF-CPU. The CPU provides
the following advantages:
• Powerful H-CPU with integrated F-
functionality
• The integrated F-functionality processes
standard and safety programs. This allows
fail-safe data to be evaluated in the stand-
ard user program. Due to this integration,
the system benefits and the comprehen-
sive functionality of SIMATIC are also
available for fail-safe applications.
• 3 PROFINET interfaces per CPU
As of FW version V2.9, you can influence the
switchover time between disconnection and
return of switched S1 devices after a fail-
ure/STOP of the primary CPU.
This function provides the following ad-
vantage:
• Optimization of the switchover time be-
tween disconnection and return of
switched S1 devices
The MRP interconnection process is an en-
hancement of MRP. MRP interconnection
allows the redundant coupling of two or more
rings with MRP in PROFINET networks.
MRP interconnection offers the following
advantages:
• There is no limit to the maximum number
of 50 devices in a ring when setting up
redundant network topologies.
• Monitoring of larger topologies with ring
redundancy.
PLCSIM Advanced V4.0 supports the simula-
tion of the R/H-CPUs
• Virtual commissioning of machines with
R/H-CPUs in a plant
• Automated testing of the STEP 7 user
program
Simulation provides the following ad-
vantages:
• Early error detection and risk minimization
• Shorter commissioning time
• No hardware costs
New properties/functions
Where can I find the infor-
mation?
As of the System overview
(Page 63) section
PROFINET Function Manual
Redundancy (Page 115) section
S7-PLCSIM Advanced
(https://support.industry.sieme
ns.com/cs/ww/en/view/109773
484/en) Function Manual
31