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Series 3700A System Switch/Multimeter
Keithley Instruments, Inc.
28775 Aurora Road
Firmware Release Notes
Cleveland, Ohio 44139-1891
1-888-KEITHLEY
http://www.keithley.com
Contents
General Information ..........................................................................................................................2
Supported models ......................................................................................................................2
Installation instructions .....................................................................................................................2
Version 1.51b Release .....................................................................................................................2
Overview ....................................................................................................................................2
Critical fixes ................................................................................................................................2
Enhancements ...........................................................................................................................3
Noncritical fixes ..........................................................................................................................3
Known issues .............................................................................................................................3
3700AS Release Notes V1.51 / March 2012 1
Series 3700A Firmware Release Notes General Information - Supported models
General Information
Supported models
This firmware is used on the following Keithley Instruments products:
Models 3706A, 3706A-S, 3706A-NFP, 3706A-SNFP, and all Series 3700 cards
Installation instructions
To install the V1.51b firmware, copy the .zip file containing the firmware to the base (root) directory of a USB
thumb drive. Once the .zip file has been copied, insert the USB thumb drive into the front USB port of the 3700A
mainframe. Press the "Menu" button and select the "Upgrade" menu item to install the firmware. Once the
firmware upgrade procedure has started, you must let it complete.
Version 1.51b Release
Overview
NOTE The 1.51b release can only be used on 3700A models. This release is not compatible with 3700
(non-A) models.
The following table lists the exact version numbers of the available Series 3700 components when the firmware
upgrade is complete.
Model Version
Series 3700A Mainframe 1.51b
Series 3700A High Performance DMM 1.50b
3720 Dual 1x30 Multiplexer 1.40h
3721 Dual 1x20 Multiplexer 1.40h
3722 Dual 1x48 High Density Multiplexer 1.40h
3723 Dual 1x30 High Speed Reed Relay Multiplexer 1.40j
3724 Dual 1x30 FET Multiplexer 1.40j
3730 Dual 6x16 High Density Matrix 1.40h
3731 Dual 6x16 High Speed Reed Matrix 1.40j
3732 Quad 4x28 High Speed Reed Matrix 1.40m
3740 32 Channel Isolated Switch 1.40h
3750 Multifunction I/O Card 1.40j
Critical fixes
NOTE: Firmware version 1.51 is the initial firmware release for the 3700A series and should not be installed on
non-A (for example 3706) models. For non-A series instruments, V1.41c is the latest firmware version. The
information provided below is only used to inform customers who had been previously using a model 3706 with
firmware release 1.41c.
PR45880 Models affected:
3706A, 3706A-S, 3706A-NFP, 3706A-SNFP
Symptom:
3700AS Release Notes V1.51 / March 2012 2
Series 3700A Firmware Release Notes Version 1.51b Release - Enhancements
A repeated call to dmm.open was causing a memory leak.
Resolution:
The firmware was modified to free up allocated memory correctly.
PR45951 Models affected:
3706A, 3706A-S, 3706A-NFP, 3706A-SNFP
Symptom:
It was observed that reading large amounts of data using VXI would occasionally cause the data to be
terminated early.
Resolution:
During heavy amounts of reading the VXI driver would set the EOI bit to early terminating the data
transfer. This was corrected.
Enhancements
None.
Noncritical fixes
PR45677 Models affected:
3706A, 3706A-S, 3706A-NFP, 3706A-SNFP
Symptom:
The login window of the Java applet was not sized properly.
Resolution:
The resolution of the login window was set to correct values.
PR45017 Models affected:
3706A, 3706A-S, 3706A-NFP, 3706A-SNFP
Symptom:
channel.calibration.verifydate returns a misleading error for cards that do not support calibration.
Resolution:
For cards that do not support calibration the error was changed to "Card not supported".
Known issues
None.
3700AS Release Notes V1.51 / March 2012 3
Series 3700A Firmware Release Notes - Known issues
3700AS Release Notes V1.51 / March 2012 4