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Deployment CPU 013-CCF0R00
Operating modes > Overview
4.12
Operating modes
4.12.1
Overview
Operating mode STOP
Operating mode START-
UP
Operating mode RUN
102
The CPU can be in one of 4 operating modes:
Operating mode STOP
n
n
Operating mode START-UP
(OB 100 - restart / OB 102 - cold start *)
n
Operating mode RUN
n
Operating mode HOLD
Certain conditions in the operating modes START-UP and RUN require a specific reaction
from the system program. In this case the application interface is often provided by a call
to an organization block that was included specifically for this event.
The application program is not processed.
n
n
If there has been a processing before, the values of counters, timers, flags and the
process image are retained during the transition to the STOP mode.
n
Command output disable (BASP) is activated this means the all digital outputs are
disabled.
n
RUN-LED off
n
STOP-LED on
n
During the transition from STOP to RUN a call is issued to the start-up organization
block OB 100.
–
The processing time for this OB is not monitored.
–
The START-UP OB may issue calls to other blocks.
All digital outputs are disabled during the START-UP, this means BASP is activated.
n
n
RUN LED
–
The RUN LED blinks as soon as the OB 100 is operated and for at least 3s, even
if the start-up time is shorter or the CPU gets to STOP due to an error.
–
This indicates the start-up.
STOP LED
n
–
During the processing of the OB 100 the STOP LED is on and then turns off.
n
When the CPU has completed the START-UP OB, it assumes the operating mode
RUN.
* OB 102 (Cold start)
If there is a "Watchdog" error the CPU still remains in STOP state. With
such an error the CPU must be manually started again. For this the
OB 102 (cold start) must exist. The CPU will not go to RUN without the
OB 102. Alternatively you can bring your CPU in RUN state again by an
overall reset respectively by reloading your project.
Please consider that the OB 102 (cold start) may exclusively be used for
treatment of a watchdog error.
n
The application program in OB 1 is processed in a cycle. Under the control of alarms
other program sections can be included in the cycle.
n
All timers and counters being started by the program are active and the process
image is updated with every cycle.
n
BASP is deactivated, i.e. all outputs are enabled.
n
RUN-LED on
n
STOP-LED off
VIPA System SLIO
HB300 | CPU | 013-CCF0R00 | en | 19-30
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