8588A & 8558A Firmware, Update by USB

TITLE	USE WITH
8588A & 8558A	All
The updating of embedded software should only be performed after given specific instructions to do so from Technical Support or a Fluke Calibration Authorized Service Center. If the update isn't performed properly, your product may be inoperable until it is.
Instructions to update by USB
An empty USB stick (of greater than 10Mbytes) will be required. This should be formatted using the Microsoft FAT32 format. Note: A Microsoft NTFS formatted USB stick is not compatible with the instrument. Expand the contents of the downloaded ‘update’ zip file, and copy the “firmware” folder and its contents onto the empty USB stick. Turn off the instrument, and then insert the USB stick into one of the front or rear USB slots, and then turn the instrument back on. After 15 to 30 seconds the instrument will display a prompt asking for the USB stick to be removed. On removing the USB stick, another prompt will be displayed to indicate that the update has begun. The update process should take no more than 40 seconds to a minute. The update is complete when the instrument display’s the ‘DCV’ function screen, at this point it is safe to turn the instrument off.
Updates Include:
Main Version 1.21 (2019 Aug. 28) Fix: Remote operation: The remote SCPI commands 'CONFIGure' and 'MEASure' did not set the instrument to auto-ranging if no range parameter was set, or the DEFault range parameter was used. Fix: Remote operation: Remote command 'CONFigure:FRESistance' followed by another 'CONFigure:FRESistance' toggles two/four wire state, (same for 'MEASure' equivalent). Fix: Remote operation: If remote 'MEASure:POWer?' sent without fitting RF sensor, system would timeout and require 'SDC' to unblock measurement system - now responds with 'NAN' value, (without hang). Fix: Remote operation: Remote command 'SENSe:POWer:FREQuency' responds with 'unknown' error if RF power sensor not fitted. Fix: Remote operation: When remotely modifying the 'immediate' AC shunt slot, (slot index 0), values can be rejected due to invalid parameters, when these parameters are actually ignored in the case of slot 0, so should be accepted without error ,(i.e. empty name/model fields). Fix: Remote operation: The 'CONF?' and 'SENSe:FUNCtion?' queries don't return the shortest keyword form possible for SENSe:CURRent:DC and XCURRENT:DC (i,e 'CURR' and XCUR'). Fix: Front panel: After a reset, (initiated from front panel or remotely), the DCI/ACI Capacitance and AC external shunt functions did not display the correct range and resolution, (in some cases).
Main Version 1.20 (2019 Aug. 9) Fix: Front panel: Reset operation did not always reset all functions to their default states. Fix: Front panel: ACI shunt function - 'AC-DC difference' parameter does not accept negative values. Fix: Front panel: ACI/DCI shunt function - incorrect values can be set for some shunt parameters, (i.e. if very large values are entered, values can mathematically overflow). Fix: Front panel: ACI shunt function - when 'AC-DC difference' popup is displayed and no points entered, pressing 'edit point' can cause the instrument to hang. Fix: Front panel: Selecting MATH with only rolling or block average enabled causes the units prefix to not be displayed. Fix: Front panel: Changing remote settings 'ethernet EOL' state does not update displayed value on UI, (but action was performed). Fix: Front panel: Changing 'timestamp' setting generates empty measurement records, (if no measurement data was available when button pressed). Fix: Remote operation: The SCPI trigger command ':SLOPe POSitive\|Negative' is inverted, (i.e. selects the opposite edge to the one requested). Fix: Remote operation: CONFigure/MEASure SCPI commands do not update the selected function's range when requested, (if range and resolution parameters both set). Fix: Remote operation: GPIB TACS/TADS transitions can be incorrect, (causing unexpected 'Unterminated' errors). Fix: Remote operation: GPIB IFC/DCL commands immediately followed by query command can time out with an 'unterminated query' error. Fix: 3458A emulation: PRESET FAST command and TRIG command did not set the instrument AUTO, (i.e. 'continuous') trigger state correctly in all cases. Fix: 3458A emulation: A spurious termination character can appear at the start of error query strings returned by ER
Main Version 1.19 (2019 July 4) Fix: Remote 8508 emulation measurements could return with truncated precision. Fix: Remote (non-ACV) scan measurements could incorrectly report individual front and rear measurement values when using ‘FETCH? n’ command. Fix: Terminal Scan ratio and division modes did not always change displayed unit to engineering notation form, (i.e. show value as x.xE+nn). Fix: Remote PUD command did not support PUB #0xxxxx version of arbitrary block program data format. (Note: Will now also accept *PUB “nnnn” format as well).
Main Version 1.15 (2019 May 30) Fix: asynchronous handling issues, (when under remote control), that could affect entry/exit from instrument adjustment mode. Fix: asynchronous handling issues, (when under remote control), that could affect the correct selection of instrument adjustment points. Fix: remote/local control issue that resulted in the instrument not returning to remote correctly after pressing the 'go to local' soft-key. Fix: remote control issue where the Capacitance function could return measurements with an incorrect precision and/or report a false 'resolution too large' error. Fix: remote issue where TALK? command did not use the selected EOL character(s) in all cases. Add: Extra information is now displayed when in remote adjustment mode, so the active adjustment point can be easily seen. Add: Remote SCPI 'CALibration:STORe' tree (query only) commands will be accepted even if no adjustment password has been entered.
Main Version 1.14 (2019 May 22) Fix: The remote command “PRESET NORM” did not always reset the instrument to the same conditions as “*RST”, (as stated in the manual). Fix: The ‘ANALYZE’ histogram chart can incorrectly show ‘0%’ on the y axis. Fix: The 8558A can report an ‘illegal configuration’ error when a current range greater than 1A is requested, and the ‘Digitize’ function selected. Fix: The Digitize function can report an incorrect range value (remotely only), on first entry to the digitize function (intermittently).

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