Product overview
2.4 Firmware functions
CPU 1517H-3 PN (6ES7517-3HP00-0AB0)
Equipment Manual, 11/2019, A5E42011886-AB
17
2.4
Firmware functions
Functions
CPU 1517H-3 PN supports the following firmware functions:
Function
Description
Additional information
CPU redundancy
There are two duplicate CPUs that synchronize their
data via two duplex fiber-optic cables, which connect
the CPUs directly to each other via plug-in synchroniza-
tion modules. If one of the CPUs fails, the other CPU
retains control of the process.
Redundant System S7-1500R/H
https://support.industry.siemens.co
tem Manual
Integrated system diag-
nostics
The system automatically generates the messages for
the system diagnostics and outputs these messages
via a programming device/PC, HMI device or the inte-
grated display. System diagnostics information is also
available when the CPUs are in operating state STOP.
Function manual Diagnostics
http://support.automation.siemens.c
Integrated trace function-
ality
Trace functionality supports you in troubleshooting
and/or optimizing the user program.
You record device tags and evaluate the recordings
with the trace and logic analyzer function. Tags are, for
example, drive parameters or system and user tags of
a CPU.
Trace and logic analyzer functions are suitable for
monitoring highly dynamic processes.
Note: Note that the S7-1500R/H redundant system
supports recording of measurements. However, saving
the measurements to the SIMATIC memory card is not
supported.
Function manual Using the trace and
logic analyzer function
http://support.automation.siemens.c
PROFINET IO
System redundancy S2
All IO devices are connected redundantly in the redun-
dant S7 1500R/H system. All IO devices assigned to
the system must therefore support system redundancy
S2.
If the role of the CPUs changes, the new primary CPU
takes over the PROFINET IO communication.
•
Redundant System S7-1500R/H
https://support.industry.siemens.
System Manual
•
Function manual PROFINET
http://support.automation.sieme
Switched S1 device
The switched S1 device function of the CPU enables
operation of standard IO devices in the S7-1500R/H
redundant system.
Redundant System S7-1500R/H
https://support.industry.siemens.co
tem Manual