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IEEE-488 Reference

3-72

3.15 :DISPlay subsystem

The display subsystem controls the display of the Model 6517A and is summarized in Table 3-6.

:TEXT commands

:DATA <a>

:DISPlay[:WINDow[1]]:TEXT:DATA <a> Deﬁne message; top display

:DISPlay:WINDow2:TEXT:DATA <a> Deﬁne message; bottom display

Parameters <a> = ASCII characters for message

Types: String 'aa...a' or "aa...a"

Indeﬁnite Block #0aa...a

Deﬁnite Block #XYaa...a

where; Y = number of characters in message:

Up to 20 for top display

Up to 32 for bottom display

X = number of digits that make up Y (1 or 2)

Query :DATA? Query the deﬁned text message

Description These commands deﬁne text messages for display. A message can be as long as 20 characters

for the top display, and up to 32 characters for the bottom display. A space is counted as a char-

acter. Excess message characters results in an error.

An indeﬁnite block message must be the only command in the program message or the last com-

mand in the program message. If you include a command after an indeﬁnite block message (on

the same line), it will be treated as part of the message and is displayed instead of executed.

:STATe <b>

:DISPlay[:WINDow[1]]:TEXT:STATe <b> Control message; top display

:DISPlay:WINDow2:TEXT:STATe <b> Control message; bottom display

Parameters <b> = 0 or OFF Disable text message for speciﬁed display

1 or ON Enable text message for speciﬁed display

Query :STATe? Query state of message mode for speciﬁed display

Description These commands enable and disable the text message modes. When enabled, a deﬁned message

is displayed. When disabled, the message is removed from the display.

GPIB Operation — A user deﬁned text message remains displayed only as long as the instru-

ment is in remote. Taking the instrument out of remote (by pressing the LOCAL key or sending

LOCAL 27), cancels the message and disables the text message mode.

RS-232 Operation — A user deﬁned test message can only be cancelled by using this command

to disable the message or by cycling power.

Keithley 6517A User Manual

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