Diagnose the USB Detection Failure
The TP700 Comfort did not expose the inserted USB stick as Storage Card USB under Control Panel → My Computer. Multiple USB sticks showed the same symptom, so the first confirmed configuration difference to investigate was the file system rather than the stick brand.
| USB format | Observed result | Decision |
|---|---|---|
| NTFS | The HMI did not expose the USB storage option. | Reformat the stick before replacing hardware. |
| FAT32 | The USB stick became accessible in the reported case. | Use FAT32 for this TP700 Comfort application. |
Reformat and Retest the USB Stick
- Open Control Panel and My Computer on the HMI, then check whether
Storage Card USBappears after inserting the stick. - If the option is absent, check the stick on a computer and identify its file system.
- If it is formatted as NTFS, preserve any required files and reformat it as FAT32.
- Insert the FAT32-formatted stick into the TP700 Comfort and check My Computer again.
- Confirm that the USB storage location is available before configuring CSV data logging to use it.
Separate Confirmed Results From Open Questions
The reported HP USB stick was initially formatted as NTFS, and changing to FAT32 resolved access. This demonstrates that the unsuccessful test did not, by itself, prove that a Siemens-branded memory stick was required.
The evidence does not establish compatibility requirements or a recommended model for a normal SD card. Do not select an SD card from this result alone; verify supported card types and formatting requirements in the applicable TP700 Comfort documentation before using one for logging.
FAQ
Why does my TP700 Comfort not recognize a USB stick?
Check whether the stick is formatted as NTFS. In the reported case, the TP700 Comfort did not expose the NTFS stick, while reformatting it as FAT32 restored access.
Where should a USB stick appear on a TP700 Comfort?
Open Control Panel → My Computer and look for Storage Card USB. If that option is absent, check the stick's file system and retest with FAT32.
Do I need a Siemens USB stick for TP700 Comfort CSV logging?
The reported ordinary HP USB stick worked after it was reformatted from NTFS to FAT32. The evidence therefore identifies formatting—not brand—as the confirmed cause in this case.