Model 6485 Firmware Upgrade Notice for KE6485 IVI/VISA Instrument
Driver Support

9/30/2002


Introduction

The Model 6485 requires firmware revision B02 or higher (B03, B04,
etc.) to work properly with the KE6485 IVI/VISA Instrument Driver.  If
your instrument's firmware revision is lower than B02, a firmware
upgrade is required.

Important Note: Model 6485 Instruments with firmware version B01 or
B02 cannot have their firmware upgraded using the RS232 serial port
connection.  Model 6485 Instruments with firmware version B01 or B02
can only have their firmware upgraded using the IEEE 488 (GPIB)
connection.  If you have a version B01 or B02 instrument and need to
upgrade the firmware, but only have a serial connection to the
instrument, you must return your instrument to the factory to have the
firmware upgrade performed.

Step 1.  Determine the firmware revision of your Model 6485

	The firmware revision is briefly displayed during the power-on
	sequence of the instrument.  When the instrument's power is
	turned on, all display annunciators will be illuminated for a
	short period.  Then
	the firmware revision is displayed briefly as follows:

		6485: yyy

		where: yyy is the firmware revision (e.g. B02) of your
		Model 6485

	To determine the firmware revision with remote control, use
	the *IDN? query command.  After sending the *IDN? command and
	addressing the instrument to talk, the following response is
	sent to the computer:

	KEITHLEY INSTRUMENTS INC., MODEL 6485, xxxxxxx, yyy/zzz

	Where: xxxxxxx is the serial number, yyy is the firmware
	revision, and zzz is the display firmware revision.

Step 2.  Determine next action

	Based on the firmware revision of your Model 6485, choose the
	appropriate course of action:

		If the firmware revision is B02 or higher, an upgrade
		is not required to use the KE6485 driver with your
		instrument.

		If the firmware revision is B01, an upgrade is
		required.  Proceed to step 3 to perform the upgrade.

		If the firmware revision begins with the letter A
		(e.g. A01), DO NOT perform the upgrade.  For these
		revisions, a hardware upgrade is also required.
		Contact your local Keithley service center for
		instructions and pricing for upgrading your Model
		6485.

Step 3.  Upgrade firmware

	To perform the firmware upgrade, a personal computer connected
	to your 6485 is required.  The PC must be at least Pentium
	class running Windows 98 or later, and must connect to your
	instrument using IEEE-488.  If you only have a serial port
	connection to your instrument, you will have to return the
	6485 to the factory to have the firmware upgrade performed.

	The PC must include either a Keithley, CEC, or National
	Instruments IEEE-488.2 interface board connected to your 6485
	with an IEEE-488.2 cable.


	Perform the following steps:

		Download the 6485 B03 Firmware upgrade.exe file from
		the Keithley Web site, www.keithley.com to a temporary
		directory on your PC.

		From Windows, click Start>>Run>>Browse.

		From the dialog box, navigate to the temporary
		directory and select the 6485 B02 Firmware upgrade.exe
		file. Click OK or Open. This will unpack the files
		required to install the flash upgrade utility.

		From Windows, click Start>>Run>>Browse.

		From the dialog box, navigate to the temporary
		directory and select the Setup.exe file. Click
		OK or Open.

		Follow all the prompted instructions to install the
		upgrade utility.

		From Windows, click Start>>Programs>>Keithley
		Instruments>>KI Model 6485 ROM Upgrade (B03), and
		follow all prompted instructions.


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End of 6485 B03 Firmware Upgrade.txt