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Tektronix KEITHLEY 2600B Series User Manual

Tektronix KEITHLEY 2600B Series
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Series 2600B System SourceMeter® instrument Reference Manual Section 8: Instrument programming
2600BS-901-01 Rev. F/August 2021 8-59
TALK
This indicator is on when the instrument is in the talker active state. Place the instrument in the talk
state by addressing it to talk with the correct talk command. TALK is off when the instrument is in the
talker idle state. Place the instrument in the talker idle state by sending a UNT (untalk) command,
addressing it to listen, or by sending the IFC (interface clear) command.
LSTN
This indicator is on when the instrument is in the listener active state, which is activated by
addressing the instrument to listen with the correct listen command. LSTN is off when the instrument
is in the listener idle state. Place the instrument in the listener idle state by sending UNL (unlisten),
addressing it to talk, or by sending the IFC (interface clear) command over the bus.
SRQ
You can program the instrument to generate a service request (SRQ) when one or more errors or
conditions occur. When this indicator is on, a service request was generated. This indicator stays on
until all conditions that caused the SRQ are cleared.
Note that while the SRQ indicator turns on when a service request is generated, it reflects the state of
the master summary status (MSS) bit and not the request for service (RQS) bit. Therefore, performing
a serial poll does not turn off the indicator. To turn off the indicator, you must use *CLS or
status.reset() to clear all the conditions that caused the MSS bit to be set.
The SRQ applies to all available communication buses. However, actual service requests only apply
to GPIB, USB, and VXI-11.
For additional information on using the SRQ, refer to Status byte and service request (SRQ) (on
page 12-15).
LOCAL key
The EXIT(LOCAL) key cancels the remote state and restores local operation of the instrument.
Pressing the EXIT (LOCAL) key turns off the REM indicator and returns the display to normal if a
user-defined message was displayed. Pressing the EXIT (LOCAL) key or the OUTPUT ON/OFF
control also aborts any commands or scripts that are being processed.
If the LLO (local lockout setting) command is in effect, the EXIT (LOCAL) key is inoperative. For
safety reasons, you can use the OUTPUT ON/OFF control to turn the output off while in LLO.

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Tektronix KEITHLEY 2600B Series Specifications

General IconGeneral
BrandTektronix
ModelKEITHLEY 2600B Series
CategoryMeasuring Instruments
LanguageEnglish

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