LENZE E82EV223K4B201 E82EV223K4B201 E82EV223K4B201 E82EV223K4B201 E82EV223K4B201

STARTUP → RUN
The primary CPU switches to the RUN operating state if:
• The CPU has initialized the PLC tags;
• The CPU has executed the startup blocks successfully;
and
• "Startup CPU only if compatible" is configured, there is feedback from all
IO devices before the end of the configuration time and all IO devices
match the configured hardware configuration or "Startup CPU even if
mismatch" is configured and the configuration time is up.The primary CPU is in the RUN operating state. The redundant system
switches from the RUN-Solo system state to the SYNCUP system state if, for
example:
• You set the backup CPU to RUN via the PG/PC or the display and the
mode selector is set to RUN
or
• You switch the mode selector on the backup CPU from STOP to RUN.
or
• You POWER ON the backup CPU (mode selector to RUN)
and
• the SYNCUP system state is not disabled by the RH_CTRL instruction.
See section SYNCUP
system state
(Page 205)
Operating state
transitions
RUN → RUN-Syncup
The primary CPU switches from the RUN operating state to the RUN-Syncup
operating state if:
• You set the backup CPU to RUN via the PG/PC or the display and the
mode selector is set to RUN
or
• You switch the mode selector on the backup CPU from STOP to RUN.
or
• You POWER ON the backup CPU (mode selector to RUN).
The backup CPU gets
all static and dynamic
data from the primary
CPU.
After successful
SYNCUP, the memory
content is identical on
the two CPUs.
The updated backup
CPU catches up with
primary CPU program
execution.
You have only limited
access to online functions
during SYNCUP.
You can find more
information in the section
Test functions
(Page 282).The redundant system switches from SYNCUP to the RUN-Redundant system
state if SYNCUP has successfully run.
In the RUN-Redundant system state, the two CPUs execute the user program
synchronously.
Note: A temporary increase in the cycle time can occur upon a system state
transition SYNCUP → RUN-Redundant. Configure a sufficiently long maximum

This system state transition
does not have
any effect on data.
Operating state
transitions
RUN-Syncup → RUN-Redundant
The primary CPU switches from the RUN-Syncup operating state to the
RUN-Redundant operating state if SYNCUP has successfully run.
Communication connections
(HMI, PG/PC)
on the backup CPU
become available.
Both CPUs process the
user program synchronouslyThe primary CPU switches from the RUN-Syncup operating state to the
RUN-Redundant operating state if SYNCUP has successfully run.
Communication connections
(HMI, PG/PC)
on the backup CPU
become available.
Both CPUs process the
user program synchronously.
SYNCUP → RUN-Redundant
The backup CPU switches from the SYNCUP operating state to the RUNRedundant
operating state if SYNCUP has successfully run.The redundant system switches from the RUN-Redundant system state to
the RUN-Solo system state (loss of redundancy) if:
• You POWER OFF one of the CPUs.
or
• A CPU detects an error that prevents continued processing, for example
a hardware defect
or
• You set one of the CPUs to STOP with the PG/PC, the display or the
mode selector.
The primary CPU switches to RUN or the backup CPU becomes the primary
CPU and switches to RUN.
This system state transition
has effects on
the diagnostics data.
Operating state
transition
RUN-Redundant → RUNThis system state transition
does not have
any effect on data.
Operating state
transitions
RUN-Syncup → RUN-Redundant
The primary CPU switches from the RUN-Syncup operating state to the
RUN-Redundant operating state if SYNCUP has successfully run.
Communication connections
(HMI, PG/PC)
on the backup CPU
become available.
Both CPUs process the
user program synchronouslyThe primary CPU switches from the RUN-Syncup operating state to the
RUN-Redundant operating state if SYNCUP has successfully run.
Communication connections
(HMI, PG/PC)
on the backup CPU
become available.
Both CPUs process the
user program synchronously.
SYNCUP → RUN-Redundant
The backup CPU switches from the SYNCUP operating state to the RUNRedundant
operating state if SYNCUP has successfully run.The redundant system switches from the RUN-Redundant system state to
the RUN-Solo system state (loss of redundancy) if:
• You POWER OFF one of the CPUs.
or
• A CPU detects an error that prevents continued processing, for example
a hardware defect
or
• You set one of the CPUs to STOP with the PG/PC, the display or the
mode selector.
The primary CPU switches to RUN or the backup CPU becomes the primary
CPU and switches to RUN.
This system state transition
has effects on
the diagnostics data.
Operating state
transition
RUN-Redundant → RUN