Chapter 3 Example Applications©National Instruments Corporation3-17FieldPoint FP-3000 User ManualFigure 3-6. PID Alarm Connection Dialog Box5. Download the configuration. The PID now detects a high limit alarmwhenever the temperature exceeds 40° C, and the alarm is transmittedto the interface on your PC. You need a separate program (such as theLookout HMI package from National Instruments) to receive, display,and acknowledge the alarms. You can verify that the alarms are beingdetected by the PID block by reading the HI_ALM parameter. TheAlarm State changes, and the Alarm Timestamp is set when the alarmgoes active.
