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StudioTax is compatible with the following Windows versions: 10 and 11.
Unfortunately starting with StudioTax 2024 and due to technical constrains, the following Windows versions 7, 8 and 8.1 can no longer be supported.

StudioTax 2024 for Windows

Note that you do not need to uninstall StudioTax 2023 or previous StudioTax versions. All StudioTax versions can be installed at the same time.

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Studiotax is published using 2 file formats: The .EXE file is the program that installs StudioTax on your computer. The .ZIP file is an archive of the same .EXE program. You only need to download one of the files.

Smart Plc Password Unlock: S7-200

“Then we’re ruined. Harvest is in three days.”

She typed: GRAIN

She was a freelance industrial automation specialist, and this was the job from hell. The "Harvest King" grain elevator in rural Nebraska had been silent for a week. A lightning strike had wiped the memory of the main PLC, and the backup was, in the owner’s words, “eaten by a raccoon.” s7-200 smart plc password unlock

Maya saved the original logic to an SD card, then wrote a new password onto a piece of duct tape and stuck it inside the panel door. “Then we’re ruined

She resoldered the chip, reattached the faceplate, and powered up the S7-200 SMART. The password prompt blinked. A lightning strike had wiped the memory of

She probed the address lines manually with a logic analyzer. For three hours, she read ones and zeroes scrolling on her laptop. Then, at offset 0x3F2, she saw it:

Maya stared at the six blinking LEDs. The RUN light was off. The FAULT light blinked a steady, desperate rhythm. She thought of the pressure sensors, the dryer fans, the auger motors—all frozen because someone, ten years ago, set a password and then died of a heart attack while eating a pork tenderloin sandwich.

“Then we’re ruined. Harvest is in three days.”

She typed: GRAIN

She was a freelance industrial automation specialist, and this was the job from hell. The "Harvest King" grain elevator in rural Nebraska had been silent for a week. A lightning strike had wiped the memory of the main PLC, and the backup was, in the owner’s words, “eaten by a raccoon.”

Maya saved the original logic to an SD card, then wrote a new password onto a piece of duct tape and stuck it inside the panel door.

She resoldered the chip, reattached the faceplate, and powered up the S7-200 SMART. The password prompt blinked.

She probed the address lines manually with a logic analyzer. For three hours, she read ones and zeroes scrolling on her laptop. Then, at offset 0x3F2, she saw it:

Maya stared at the six blinking LEDs. The RUN light was off. The FAULT light blinked a steady, desperate rhythm. She thought of the pressure sensors, the dryer fans, the auger motors—all frozen because someone, ten years ago, set a password and then died of a heart attack while eating a pork tenderloin sandwich.