Thorlabs PM5020 Dual-Channel Benchtop Optical Power and Energy Meter - Firmware Change Log
---------------------------------------------------------------------------

This firmware is a device internal program for the PM5020 Dual-Channel Benchtop Optical 
Power and Energy Meter. 

Installation Instruction
------------------------

In order to update the PM5020 firmware, the firmware image
(file extension *.dfu) and the Thorlabs Optical Power Monitor (OPM) are required.
You will find it installed to your computer after downloading and installing the
Thorlabs Power Meter Software package from our web site. There (tab "Firmware")
the up-to-date firmware image can be found as well.
Please download it and remember the location on your computer where you saved
it to.

1. Start the Thorlabs Optical Power Monitor (OPM) and navigate: Help -> Tools -> 
   Firmware Update Tool

2. In the Welcome screen click Browse and select the previously downloaded .dfu file.

3. Select "Update firmware over USB" or "Update firmware over Ethernet"

   Firmware update via USB
   ------------------------
   Ensure PM5020 is connected via USB
   
   Firmware update via Ethernet
   -----------------------------
   Ensure PM5020 is connected via Ethernet
   On PM5020 click on Menu -> Interface and check for DFU Port (Default is 27007) and
   IP address. If NetBIOS is active on your LAN you can also use the hostname of the device
   instead of the IP address. 
   Note: If DFU port is set to 0 the update via Ethernet is deactivated.
   In the OPM type in IP address or hostname and DFU Port.

4. Click Next. The tool scans for the PM5020.

5. The OPM lists the Powermeter. Click "Start" to begin DFU upload. 

6. The update tool software switches the PM5020 to DFU upload mode and begins to transfer
   the firmware image. The progress can be observed at the Update Tool. 
   Do NOT interrupt the process, this may cause your PM5020 to become inoperable!

7. When the transfer has completed click Finish. The Update Tool application
   closes, and the PM5020 reboots with the new firmware.


Changelog
---------
Mar.08.2024
Backpanel:  V 1.1.3
- BUGFIX: ACQ:FAST:FETC? binary data format error.
- BUGFIX: Bug Fix on chart view on switching record to stop, display value was cut.
- BUGFIX: Bug Fix: Bug fix in pulse integrator of thermopile sensor.
- BUGFIX: Wrong unit was used to save actual wavelnegth unit in combination with correction file.
- BUGFIX: Display the serialnumber and device name on the splash screen.
Powermeter: V 1.4.0
- BUGFIX: Improve sensor readout stability
- ADD: SCPI commands to read both channels simultaniously e.g. MEAS:SIMU:POW?
- ADD: SCPI command FETC:TIM? to wait for response a given amount of time
- ADD: SCPI command to export/import measurement parameters in JSON format

Jun.19.2023 
Backpanel:  V 1.1.2
- ADD: Key navigation for Date&Time dialog.
- ADD: Settings for enable\disable encryption for the communication over ethernet.(interface dialog)
- ADD: Delta beam representation and settings for 4 Quadrant thermopile sensor.
- BUGFIX: Overwork system info dialog. All dates now have the same format.
- BUGFIX: Maximal day of month for selection was wrong. (Date & Time Dialog)
- BUGFIX: Min\Max window representation in DIO dialog.
- BUGFIX: System info and SD Card info dialogs could be open more than one time on pressing many times.
Powermeter: V 1.3.0
- ADD: SCPI commands to send and receive custom data via user accessible I2C
- ADD: Thermopile sensor pulse integration for energy measurement
- ADD: 4 Quadrant Thermopile sensor beam delta
- BUGFIX: minor bugs in scope mode and measurement module

Jul.04.2022 Release V1.0.0