Keithley 7001 User Manual

IEEE-488 Reference
5-127
:AUTO? Query auto-count
Short-form format: :trig:coun:auto?
Response message: 1 (on) or 0 (off)
With auto-count enabled, the channel count is automatically set to the scan-list-length. For ex-
ample, if there are currently 36 channels in the scan list, then enabling auto-count will set the
channel count to 36. While auto-count is enabled, changing the scan list count will change the
trigger count.
If the scan list is empty, enabling auto-count will set the channel count to 1.
This command is coupled to :TRIGger:COUNt which is used to manually set the channel count.
When :TRIGger:COUNt is used to set the channel count, auto-count will automatically disable.
10 OUTPUT 707; “:scan (@ 1!1:1!10)
20 OUTPUT 707; “:trig:coun:auto on; auto?; :trig:coun?”
30 ENTER 707; A$
40 PRINT A$
50 END
Line 10 Defines a scan list (channels 1-10 of Slot 1).
Line 20 Enables auto-count, queries the state of auto-count and then queries the channel
count.
Line 30 Addresses the 7001 to talk.
Line 40 Displays the state of auto-count and the channel count (1; 10).
:DELay <n>
:ARM[:SEQuence[1]]:LAYer2:DELay <n> Set Arm Layer 2 delay
:TRIGger[:SEQuence[1]]:DELay <n> Set Trigger Layer delay
<n> = 0 to 99999.999 Specify delay in seconds
= DEFault 0 second delay
= MINimum 0 second delay
= MAXimum 99999.999 second delay
:arm:lay2:del <n>
:trig:del <n>
Power-up Saved power-on setup
*RST 0 sec
:SYSTem:PRESet 0 sec
Query
commands
Description
Programming
example
5.18.5
Parameters
Short-form
formats
Defaults
Trigger subsystem
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Keithley 7001 Specifications

General

Max Switching Voltage	300 V
Max Switching Current	1 A
Operating Temperature	0°C to 50°C
Switching Speed	1 ms
Interface	GPIB, RS-232
Switching Type	Various, depending on installed switch cards (e.g., electromechanical, solid-state)

Summary

Warranty

Limitation of Warranty

Limits of warranty coverage, remedies, and exclusions.

Safety Precautions

7001 High Density Switch System Specifications

SYSTEM

Core system parameters including capacity, memory, timing, triggers, and I/O.

ANALOG BACKPLANE

Details on analog backplane signals, voltage, current, and isolation.

IEEE-488 BUS IMPLEMENTATION

GENERAL

1 General Information

1.3 Warranty Information

Details and procedures related to product warranty.

1.5 Safety Symbols and Terms

Explanation of safety symbols and terms used throughout the manual.

1.6 Specifications

Technical specifications of the Model 7001 instrument.

2 Card Installation

2.2 Model 701X Series Card Installation

Steps for installing 701X series cards into the mainframe.

2.3 Non-701X Series Cards

Steps for installing non-701X series cards into the mainframe.

4 Front Panel Operation

4.2 Power-up Procedure

Steps for connecting power and starting the instrument.

4.5 Mainframe Programming

4.7 Card Config

4.8 Scan Config

5 IEEE-488 Reference

5.2 IEEE-488 Bus Connections

5.3 Primary Address Selection

5.6 Status Structure

7 Maintenance

7.2 Service Options

7.3 Static-Sensitive Devices

Precautions for handling static-sensitive components.

7.5 Disassembly

Procedures for removing instrument covers and boards.

7.6 Diagnostics

How to run the instrument's built-in diagnostic tests.

7.8 Troubleshooting

Guidance for diagnosing and fixing instrument malfunctions.

8 Replaceable Parts

8.2 Electrical Components List

8.4 Ordering Information

8.5 How to Obtain Factory Service

Process for returning the instrument for factory service.

6 Theory of Operation

6.2 Overall Functional Description

General functional overview of the Model 7001.

6.3 Control Function

Description of the instrument's internal control mechanisms.

6.4 Relay Control Circuitry