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Using Status Event Registers for Event Monitoring

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Using Status Event Registers for Event Monitoring

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When using GPIB to perform automated tests or experiments the user may want to know when specific events occur. This can be done by continually polling an instrument using software and checking to see if the conditional event occurred. This method ties up the GPIB bus and is difficult to detect multiple events. A better method for detecting specific events is to use Status Event Registers which will trigger Service Requests when an event occurs. This method does not require continual polling of the instrument and can handle multiple events. This method is not only ideal, but preferred since it will reduce the time required to create event checking software. This technical note examines how to use Status Event Registers and discusses an example to demonstrate the Service Request capabilities using an ILX LDC-3724B.

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