Siemens SIMATIC S7-1500R/H Manual - Page 16

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2.3

Firmware functions

Functions

CPU 1515R-2 PN supports the following firmware functions:

Function

CPU redundancy

Integrated system diag-

nostics

Integrated trace function-

ality

PROFINET IO

System redundancy S2

RT (real time)

MRP (Media Redundancy

Protocol)

CPU 1515R-2 PN (6ES7515-2RM00-0AB0)

Manual, 10/2018, A5E42009914-AA

Description

There are two duplicate CPUs that synchronize their

data via redundancy connections within a PROFINET

ring. If one of the CPUs fails, the other CPU retains

control of the process.

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.

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.

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.

RT prioritizes PROFINET IO frames over standard

frames. This ensures the required determinism in the

automation technology. In this process the data is

transferred via prioritized Ethernet frames.

The Media Redundancy Protocol enables the configu-

ration of redundant networks. Redundant transmission

links (ring topology) ensure that an alternative commu-

nication path is made available if a transmission link

fails.

Within the PROFINET ring, the R-CPUs assume the

role of the MRP Manager following appropriate project

configuration and all other devices in the ring assume

the role of the MRP clients.

Product overview

2.3 Firmware functions

Additional information

Redundant System S7-1500R/H

(https://support.industry.siemens.co

m/cs/ww/en/view/109754833) Sys-

tem Manual

Function manual Diagnostics

(http://support.automation.siemens.c

om/WW/view/en/59192926)

Function manual Using the trace and

logic analyzer function

(http://support.automation.siemens.c

om/WW/view/en/64897128)

Redundant System S7-1500R/H

•

(https://support.industry.siemens.

com/cs/ww/en/view/109754833)

System Manual

Function manual PROFINET

•

(http://support.automation.sieme

ns.com/WW/view/en/49948856)

Function manual PROFINET

(http://support.automation.siemens.c

om/WW/view/en/49948856)