TP 270 10" HMI Image Update: Resolving WinCC flexible OS Issues

TP 270 10" HMI Image Update: Resolving WinCC flexible OS Issues

The Siemens TP 270 10" touch panel relies on a runtime image (operating system) that is delivered with, and versioned against, a specific release of WinCC flexible (or its predecessor, ProTool). The most common field issue is the apparent absence of a required image version, for example V7.1.1.0, after installing a WinCC flexible service pack. This reference documents the exact source of the image file, the official transfer/update paths, and the corrective steps when the expected image is missing from the images directory of the engineering station.

1. TP 270 10" Hardware Context

The 6AV6 545-0BA15-2AX0 (TP 270 10") and 6AV6 545-0BC15-2AX0 variants are members of the SIMATIC TP 270 family of touch panels. They run a Windows CE-based runtime, load a compressed image during boot, and expose a serial (MPI/PROFIBUS DP) plus optional Ethernet interface. The image carries the boot loader, the CE kernel, the WinCC flexible Runtime, and the communication stacks for OPC, S7-MPI, S7-PROFIBUS, and PROFINET (where fitted).

2. Image Version Architecture and Why "7.1.1.0" Is Specific

The runtime image on the TP 270 is identified by a four-segment version string, for example V07.01.01.00. Each segment maps deterministically to the engineering tool release that produced it:

The version V7.1.1.0 (the 07.01.01.00 level) is delivered exclusively by WinCC flexible 2005 SP1 with Hotfix 7 installed. Lower service packs produce older image revisions; higher revisions (for example WinCC flexible 2007) generate image 07.01.02.00 and will refuse to down-flash a panel from 07.01.02.00 to 07.01.01.00 without an explicit cross-version restore step.

3. Why the Image File Is "Missing" in the WinCC flexible Folder

Three root causes account for the field observation that the expected image is not visible at <install_path>\WinCC flexible\Images:

1. Wrong service-pack level installed. The engineering station was set up with WinCC flexible 2005 SP1 base or with an earlier hotfix (HF1 through HF6). These levels do not carry image 07.01.01.00 for the TP 270. Verify with Start > Programs > SIMATIC > WinCC flexible > Info; the "About" dialog lists the exact build number, for example WinCC flexible 2005 SP1 HF7 (K1.5.1.0_1.21.0.0).
2. Custom install omitted the image set. A custom or compact install that selected only the configuration runtime will not place TP270.IMG in the images directory. Re-run the installer with Modify and confirm the option Images for Windows CE panels is enabled.
3. Image is on the panel itself (pending update). The image does not need to be pre-deployed to disk; WinCC flexible will stream it from the installer source. If the engineer is using a runtime-only PC or a recovery environment, ProSave is the correct tool to apply the image.

4. Prerequisites Before Performing the OS Update

• Install WinCC flexible 2005 SP1 with Hotfix 7 on the engineering station, or install the matching ProSave build that ships in \WinCC flexible\Support\ProSave.
• Verify a valid license key is present for the TP 270 panel type under WinCC flexible > Options > License Management.
• Connect the TP 270 to the engineering PC with a serial MPI/PC adapter (6ES7 972-0CA23-0XA0) or via Ethernet if the -2AX0 Ethernet variant is present.
• Set the TP 270 transfer mode: Control Panel > Transfer > Enable Serial/Ethernet Transfer = On, or use the panel's manual transfer button at boot (hold the lower-right of the screen during power-up).
• Stop any active project on the panel. Disconnect from the controlling PLC during the update if the panel is mid-cycle; a power loss during flash write will brick the device.
• Confirm the supply voltage is stable (24 V DC ±20 %) and that the panel has been powered for at least 60 s before initiating the transfer.

5. OS Update via WinCC flexible (Project-Attached Path)

The straightforward path when a TP 270 project is open in WinCC flexible:

1. Open the TP 270 project in WinCC flexible 2005 SP1 HF7.
2. From the menu, select File > Transfer > OS Update (German: Datei > Transfer > Betriebssystem-Update).
3. In the OS Update dialog, set the connection type (Serial MPI / Serial PPI / Ethernet / USB) and the target address (default MPI 1, address 1 for a fresh panel; address 0 for Ethernet direct).
4. Click Update OS. The tool enumerates the installed images and offers the bundled 07.01.01.00 for the TP 270. Confirm the panel model and the destination.
5. The transfer window reports the image write progress in blocks of 64 KB. Typical flash time is 4-7 minutes over MPI at 187.5 kbps; 90-150 s over Ethernet.
6. When the dialog reports OS Update successfully completed, cycle power to the panel. The first boot may take up to 90 s while the registry is re-built.
7. Re-transfer the project file using Project > Transfer > Transfer to Target System.

6. OS Update via ProSave (Stand-Alone Path)

ProSave is the correct choice when no project is at hand, when the engineering PC does not have a WinCC flexible install with the correct image set, or when a recovery image must be pushed from a different machine. ProSave lives at <WinCC flexible install>\Support\ProSave\ProSave.exe and is a stand-alone GUI that does not require WinCC flexible to be running.

1. Launch ProSave as administrator.
2. In the Device type drop-down, select TP270 10". Set the connection (Serial, Ethernet, MPI/DP, USB).
3. Click the OS Update tab. The tool lists available image files in its search path; if 07.01.01.00 is not in the default \ProSave\Images directory, browse to \WinCC flexible\Images and select TP270.IMG manually.
4. Click Update OS. Confirm the warning dialog about data loss.
5. Wait for the completion banner. Power-cycle the panel.

ProSave is also the only tool that can perform a reset to factory defaults via the Restore tab, which wipes the persistent flash and reloads the bootloader-safe image partition. Use this if the panel will not complete its boot sequence after a failed update.

7. Common Error Conditions and Resolutions

8. Verifying a Successful OS Update

1. After the panel reboots, open Control Panel > System > About on the TP 270. The Image Version field must read 07.01.01.00.
2. Open the project in WinCC flexible and re-compile. The output window should report Target image version: V07.01.01.00 - compatible. A warning such as "Image on target is newer than the one shipped with this WinCC flexible version" indicates the panel is at a higher revision than the engineering tool.
3. Transfer the project and confirm the boot logo, language switching, alarm view, and tag polling all function as before the update.
4. For cycle-sensitive validation, monitor the MPI/DP diagnostics: Control Panel > S7-Transfer > Diagnostics should show clean bus statistics with zero retry counters and zero station failures over a 10-minute observation window.

9. Cross-Version Compatibility Matrix for the TP 270

When a plant fleet mixes panels and engineering stations, confirm the image/engineering tool matrix to avoid the situation where the panel carries a newer image than the engineering PC can produce:

For the canonical Siemens reference on this image family, see the official entry Siemens Support Entry 21742389 - WinCC flexible Image Compatibility TP/OP 270/277. For the OS update procedure on a Windows CE panel using ProSave, see Siemens Support Entry 19701610 - Performing OS update for Windows CE panels.

10. Field-Proven Cautions and Best Practices

• Never run a WinCC flexible install on a Windows XP/7 PC that has both ProTool and WinCC flexible present with overlapping image directories. The install order matters; ProTool should be installed first when migrating legacy projects, otherwise the older image may overwrite the newer 07.01.01.00.
• Keep at least one engineering PC per plant with a known-good image set on a labeled, read-only network share. Use this as the canonical source for any ProSave-driven recovery.
• After a successful update, archive the panel's Backup (created via ProSave) along with the matching WinCC flexible project .hmi file. The pair is the minimum unit to restore the panel to a known state.
• If the panel is part of a Profinet/Profibus safety chain, plan the update for a scheduled downtime. The flash write is non-atomic from the bus master perspective and may cause the panel to drop from the configuration for 1-2 bus cycles.
• Do not attempt to install Hotfix 7 over a WinCC flexible 2005 SP1 base that has been patched with a different interim Hotfix (HF1-HF6). Re-install the SP1 base, then apply HF7 in order. The HF7 installer is incremental and assumes a clean SP1 base.

11. Reference Procedure Summary (Command-Line Equivalent)

For engineers who script panel maintenance across a fleet, ProSave supports an unattended mode. The image transfer can be invoked from a Windows command prompt or a PowerShell wrapper:

Pair the update with a follow-up project push:

Wrap both calls in a batch file with error-level checks to provide a single-touch recovery for panels whose only symptom is a failed previous update.