Rockwell Automation FactoryTalk View Machine Edition Users Guide - Manual (Page 134)

F ACTORY T ALK V IEW M ACHINE E DITION U SER ’ S G UIDE
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If power to the motor is lost, the manual stop and overload switch also lose power,
generating alarms for all three motor parts. The only alarm the operator needs to see is the
alarm for the motor, since the cause of the alarm is power loss to the motor, not a problem
with the other two motor parts.
If someone stops the motor manually, power to the overload switch is lost. Alarms are
generated for the manual stop and the overload switch, but the only alarm the operator
needs to see is the alarm for the manual stop.
1. Create an alarm trigger for the tag Motor_starter. The tag uses 16 bits, and points to
the programmable controller address N7:61, although only the first three bit positions
are used in this example. Use the LSBit (Least Significant Bit) trigger type.
Because you are using only the first three bits in a single tag element, there is no need
to specify a length for the array tag in this example. You can use a simple tag type.
However, if you were also monitoring bits in N7:62, you would need to add L2 to the
address, as follows:
{::[PLC5]N7:61,L2}