Serial Polling Overview
You can use serial polling to obtain specific information from GPIB devices when they request service. When the GPIB SRQ line is asserted, it signals the Controller that a service request is pending. The Controller must then determine which device asserted the SRQ line and respond accordingly. The most common method for SRQ detection and servicing is the serial poll.
Related Topics:
Automatic Serial Polling Overview
Serial Polling with Device-Level Traditional NI-488.2 Calls