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128 Agilent InfiniiVision 3000 X-Series Oscilloscopes Programmer's Guide

5 Common (*) Commands

selected and a common command is received by the instrument, the

instrument remains in the selected subsystem. For example, if the program

message ":ACQuire:TYPE AVERage; *CLS; COUNt 256" is received by the

instrument, the instrument sets the acquire type, then clears the status

information and sets the average count.

In contrast, if a root level command or some other subsystem command is

within the program message, you must re- enter the original subsystem

after the command. For example, the program message ":ACQuire:TYPE

AVERage; :AUToscale; :ACQuire:COUNt 256" sets the acquire type,

completes the autoscale, then sets the acquire count. In this example,

:ACQuire must be sent again after the :AUToscale command in order to

re- enter the ACQuire subsystem and set the count.

Each of the status registers has an enable (mask) register. By setting the bits in the enable

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Agilent Technologies InfiniiVision 3000 DSO-X 3054A Manuale di Servizio Pagina 128