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Remote Operation Preparing the Instrument for Remote Operation 4A Table 4A-1. GPIB Preferences ead98f.bmp Field GPIB Address Event Status Enable Status Register Enable Power On Status Clear Preference 0 to 30 0 to 255 (May also be set using SCPI *ESE command.) 0 to 255 (May also be set using SCPI *SRE command.) Enable, Disable Switching to Remote Operation When the Instrument is in local operation the instrument is fully programmable both from the front panel and from the IEEE 488 bus. There is no physical switch for selecting remote operation. Rather, when the Instrument receives a bus message it switches to remote operation. If the message arrives while a change is being entered from the front panel, the front panel entry is interrupted and then the bus message is executed. Once the Instrument is set to remote operation all of the front panel (local) controls are locked out (inoperable) with the exception of the L key and the Go to Local soft key at the bottom of the display. Pressing the GO to Local soft key causes the Instrument to return to local operation. 4A-5