* Question
| Briefly describe the concept and classification of GPIB system devices? |
* Answer
| The instruments and devices interconnected by the GPIB bus are various, and some of them are complicated, such as computers, network analyzers, etc., and some are very simple, such as switches, attenuators, and the like.But from the perspective of test system formation, they are all a logical unit in the system, only the test function is different.In a GPIB system, different devices perform different tasks and perform different functions.There are three types of functions that can be operated by the device in the system.Whether the device can perform the specified functions depends on whether the corresponding function circuit is equipped in the GPIB interface circuit. The controller controls the operation of the entire test system by sending a series of interface commands and management messages.For example, the device is appointed as a speaker and listener.Arrange data exchange between them, receive their service requests, and so on. |
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