Wiring Considerations
(Original Document)
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Operational Consideration
WARNING
UNINTENDED EQUIPMENT OPERATION
Although you can connect or disconnect the serial link wire on the BMX P34 20x0 CPUs while the power to the station is on, doing so can interrupt the application in progress.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
The Link
The following situations can create a temporary disruption in the application or communications: