User`s manual

48 Chapter 1

O:\Manuals\E6380A_Progguid\Book\Usehpib.fm

Using HP-IB

Remote/Local Modes

Remote Mode

In Remote mode all front-panel keys are disabled (except for the

LOCAL key, POWER switch, Volume control and Squelch control). The

LOCAL key is only disabled by the Local Lockout bus command. When

in Remote mode and addressed to Listen the Test Set responds to the

Data, Remote, Local, Clear (SDC), and Trigger messages. When the

Test Set is in Remote mode, the R annunciator will be displayed in the

upper right corner of the display screen and triggering is set to the state

it was last set to in Remote mode (if no previous setting, the default is

FULL SETTling and REPetitive RETRiggering). When the Test Set is

being addressed to Listen or Talk the L or T annunciators will be

displayed in the upper-right corner of the display screen.

Local Mode

In Local mode the Test Set’s front-panel controls are fully operational.

The Test Set uses FULL SETTling and REPetitive RETRiggering in

Local mode. When the Test Set is being addressed to Listen or Talk the

L or T annunciators will be displayed in the upper-right corner of the

display screen.

Remote or Local Mode

When addressed to Talk in Remote or Local mode, the Test Set can

issue the Data and Status Byte messages and respond to the Take

Control message. In addition the Test Set can issue the Service Request

Message (SRQ). Regardless of whether it is addressed to talk or listen,

the Test Set will respond to the Clear (DCL), Local Lockout, Clear

Lockout/Set Local, and Abort messages.