Automatic Start in RUN for Premium/Quantum

Description

Automatic start in RUN is a processor configuration option. This option forces the PLC to start in RUN after a cold restart, except after an application has been loaded onto the PLC.

For Quantum PLCs, automatic start in RUN also depends on the position of the switch on the front panel of the processor. For more details, refer to the Quantum documentation.

WARNING

UNEXPECTED SYSTEM BEHAVIOR - UNEXPECTED PROCESS START

The following actions will trigger "automatic start in RUN":

Inserting the PCMCIA card when the PLC is powered up (Premium, Quantum),
Replacing the processor while powered up (Premium, Quantum),
Unintentional or careless use of the reset button,
If the battery is found to be defective in the event of a power outage (Premium, Quantum).

To avoid an unwanted restart when in RUN mode:

We stongly recommend to use the RUN/STOP input on Premium PLCs or the switch on the front of the panel of the processor for Quantum PLCs
We strongly recommend not to use memorized inputs as RUN/STOP input of the PLC.

Failure to follow these instructions can result in death, serious injury, or equipment damage.