TPDIN-SC48-20 V3

Discovery Tool

The Discovery Tool will find the TPDIN® on your connected network so you can access it even if you don’t know the IP Address.  We created a new Discovery Tool based on Java so it will work on virtually any platform: Windows, Linux, Apple IOS

Discovery Tool Version Release Date Description
2.6  (JAR File) January 4 2021 Added uptime for devices
2.5  (JAR File) Feb 18 2020 Added support for additional products
2.4  (JAR File) Feb 11 2019 Java Based Discovery Tool ( Windows, Linux, MAC)
1.1  (ZIP File) Oct 9 2012 Original Discovery Tool ( Windows EXE Only)

TPDIN-SC48-20 V3 Firmware

TPDIN® 20A MPPT solar controller with Gigabit 802.3at PoE switch, 802.3at PoE Outputs and remote monitoring and control, Shipping AFTER January, 2023.

Access the unit webpage and confirm the model on the Monitor page. It should be “TPDIN-SC48-20 V3”. Download the latest firmware from this website and then access the unit webpage and goto the upgrade page, select the downloaded firmware file and upload to the unit. It’s that easy. Note: Please right click the link in your browser and select “Save Link As” to download firmware hex files.


We are now making our beta firmware available for your testing. If you have any test feedback please email

Beta Version Release Date Updates
No beta available
Released Firmware Versions:
Firmware Version Release Date Updates
3.0.8 (HEX File) Feb 26 2024 Added battery over-voltage warning and alerts. Load will cycle and alert sent every 15 minutes.
HTTPS is supported on port 443. Added TLS support for sending emails on port 587.
The config file can be downloaded/uploaded from the System page.
Added a guest login with permission settings. Added a network connection test feature.
Improved the boot-up sequence.
Fixed a bug that would cause input current to show as a negative number.
Balance charge is disabled if the battery type is Lithium.
3.0.6 (HEX File) Jan 29 2024 Backup Firmware Version, NTP improvement, Improved current calc, SNMP enhancements, Add Battery State of Charge with calibrate.htm page, Corrected Lead Acid temp comp
3.0.5 (HEX File) Feb 14 2023 Fixed a problem with the clock.
Firmware updates now use HTTPS instead of HTTP.
Improved firmware update web page.
3.0.4 (HEX File) Jan 10 2023 Fixed a bug whith the balance charge starting sometimes after a reboot.
Fixed the reset buttons in the web interface.
Improved the bootup initialization sequence.
3.0.3 (HEX File) Oct 26 2022 Original Release