Operator Controls And Operating Modes Of The Cpu 410-5H; Operating Modes Of The Cpu 410-5H; Run Mode - Siemens CPU 410-5H Process Automation System Manual

Operator controls and operating modes of the CPU
410-5H
7.1

Operating modes of the CPU 410-5H

7.1.1

RUN mode

Reaction of the CPU
If there is no startup problem or error and the CPU was able to switch to RUN, the CPU
either executes the user program or remains idle. The I/O can be accessed.
● You can upload programs from the CPU to the programming device (CPU ->
● You can download programs from the programming device to the CPU (Programming
The user program is executed by at least one CPU in the following system states:
● Stand-alone operation
● Single mode
● Link-up, update
● Redundant
Single mode, link-up, update
In the system states standalone mode, link-up and update, the master CPU is in RUN and
executes the user program in standalone mode.
Redundant system mode
The master CPU and standby CPU are always in RUN when operating in redundant system
mode. Both CPUs execute the user program in synchronism, and perform mutual checks.
In redundant system mode it is not possible to test the user program with breakpoints.
The redundant system state is only supported with CPUs of the same version and firmware
version. Redundancy will be lost if one of the errors listed in the following table occurs.
CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 10/2013, A5E32631667-AA
Programming device).
device -> CPU).
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