Resolving Siemens MP270B OS Update Image File Missing Error

The Siemens SIMATIC MP270B Multi Panel is a 10.4-inch HMI device that ships with an embedded Windows CE image. When the panel firmware, runtime, or image file becomes corrupted, is rolled back to factory defaults, or when a project compiled against a newer runtime version is transferred to a panel with an older operating system, an OS update must be performed. During this operation, engineers frequently encounter the error:

Info: Could not open the file C:\Program Files (x86)\Siemens\Automation Portal V13.0.1\Images\OP_TP270_MP270B\OP_TP270_MP270B_V7_2_4_0.img

This error blocks any project transfer and indicates that the configuration software cannot locate the required panel image on the engineering station. The article below walks through the root cause, the correct Siemens tools to use for the MP270B, and a verified procedure for restoring the panel image.

1. Problem Description

The failure presents itself in one of two scenarios:

1. Project transfer fails with version mismatch — The user attempts to download a project to the MP270B using WinCC Flexible or TIA Portal, and the transfer aborts with a compatibility message. WinCC Flexible reports a target runtime newer than the panel can host.
2. OS update wizard cannot find the image — The user starts the OS update routine (either from within the engineering tool or through the ProSave utility), and the wizard returns the missing OP_TP270_MP270B_V7_2_4_0.img file. No progress can be made until the image is supplied.

The MP270B family uses image files with the naming convention OP_TP270_MP270B_V<major>_<minor>_<build>_<revision>.img, located in the installation directory of the supporting engineering software. When the file is missing, the OS update cannot proceed.

2. Affected Hardware and Firmware

The MP270B is part of the Siemens SIMATIC 270 series, which predates the Unified Comfort Panel line. Common order numbers within the affected family include:

The image filename referenced in the error — OP_TP270_MP270B_V7_2_4_0.img — corresponds to runtime version 7.2.4.0. This runtime is supported by WinCC Flexible 2008 SP3 and later, including the SP5 maintenance release, which is the highest engineering tool release that still ships panel images for the 270 series.

3. Root Cause Analysis

The error has three typical root causes, listed in order of frequency in the field:

3.1 Wrong Engineering Tool for the MP270B

The path C:\Program Files (x86)\Siemens\Automation Portal V13.0.1\Images is a TIA Portal V13 installation path. TIA Portal V13 introduced the TP/MP 270B as a legacy-supported device through a HSP (Hardware Support Package), but the panel image is not always included in a default TIA Portal V13 install. Furthermore, TIA Portal V13 is not the recommended tool for MP270B commissioning. The native engineering environment for the MP270B is SIMATIC WinCC Flexible, where the OS update wizard was specifically designed to locate, deploy, and verify panel images.

3.2 Missing Image File After Incomplete Installation

If the image subdirectory exists but OP_TP270_MP270B_V7_2_4_0.img is absent, the engineering tool installation is incomplete. The image files are large (typically 30–80 MB each) and are sometimes skipped when "Custom" or "Minimum" installation paths are chosen. A repair or full re-installation of WinCC Flexible is required.

3.3 Corrupted Image File or Blocked by Anti-Virus

On locked-down engineering workstations, security software may quarantine the .img files because they are raw disk images. Inspect the Windows Defender / Symantec / Trend Micro quarantine logs to confirm whether the file was moved.

4. Prerequisites

Before attempting any recovery, gather the following:

• WinCC Flexible 2008 SP5 (or any SP where the image version 7.2.4.0 is bundled). The image must be present on the engineering PC.
• ProSave (ships with WinCC Flexible, also available standalone from the Siemens support site).
• Either an Ethernet crossover cable (for direct PC-to-panel connection), a standard Ethernet switch, a USB-to-serial adapter plus MPI/PROFIBUS cable (6ES7 901-3CB30-0XA0 or 6ES7 901-3DB30-0XA0), or a USB-PPI adapter.
• The MP270B powered up and at the Control Panel (CE desktop) or at the transfer screen.
• A 1 GB or larger CompactFlash card (if performing offline image update via CF).
• Full ProSave backup of the existing panel data, even if the panel currently shows a fault.

5. Solution: Method A — WinCC Flexible OS Update Wizard

This is the recommended procedure, as it handles the image selection, transfer, and verification automatically.

Step-by-Step Procedure

1. Open SIMATIC WinCC Flexible on the engineering PC.
2. From the Project menu, select Transfer > OS Update (also accessible from the Tools menu in older builds).
3. In the OS Update dialog, choose the connection mode:
   • Ethernet — enter the panel IP address (default for MP270B out of the box is 192.168.0.1, or the address assigned by DHCP). Confirm that the engineering PC is on the same subnet.
   • RS232 / MPI / PROFIBUS — select the COM port, baud rate (default 187.5 kbps for MPI/PROFIBUS), and station address of the panel (default 1).
4. Click Search. WinCC Flexible scans the network or serial bus for HMI stations. The MP270B should appear with its part number and current OS version.
5. Select the device and confirm. WinCC Flexible prompts for the target OS image. Navigate to the Images\OP_TP270_MP270B\ folder under the WinCC Flexible installation directory — typically:

C:\Program Files (x86)\Siemens\Automation\WinCC Flexible\Images\OP_TP270_MP270B\OP_TP270_MP270B_V7_2_4_0.img

6. Confirm the file selection. WinCC Flexible will copy the image to the panel and trigger an automatic reboot.
7. Wait for the panel to enter Update Mode. The MP270B displays a progress bar and re-flashes its internal image. This process can take 5–15 minutes; do not power cycle the panel during this window.
8. When the panel returns to the CE desktop or the configured start screen, the OS update is complete.

Manual Image Path Override

If WinCC Flexible prompts for the image location and the file is not in the default path, browse to the directory that contains OP_TP270_MP270B_V7_2_4_0.img. If you have copied the file from another installation, point the dialog at that folder. The image filename must match the version expected by the project transfer — the engineering tool validates the version during the file selection step.

6. Solution: Method B — ProSave Direct Update

When WinCC Flexible is unavailable or the project has not yet been opened, use the ProSave utility to push the image directly to the panel.

Step-by-Step Procedure

1. Launch ProSave (Start > SIMATIC > ProSave).
2. In the General tab, set the device type to MP270B and the connection type to Ethernet (TCP/IP), RS232, MPI, or PROFIBUS.
3. Enter the target address parameters (IP address, COM port, baud rate, station address).
4. Switch to the OS Update tab.
5. Click Image File and select OP_TP270_MP270B_V7_2_4_0.img from the local drive.
6. Click Update OS. ProSave initializes the panel into update mode, transfers the image, and reboots the device.
7. Confirm the panel returns to the CE desktop or transfer-ready state.

ProSave can also be operated from the command line for scripted deployments:

7. Solution: Method C — Restoring the Image File

If the OP_TP270_MP270B_V7_2_4_0.img file is genuinely missing from the engineering station, restore it before running the update.

Option 7.1 — Reinstall or Repair WinCC Flexible

1. Insert the WinCC Flexible 2008 SP5 DVD (or mount the ISO).
2. Run Setup.exe and select Repair Installation.
3. When the Custom Setup screen appears, ensure the Panel Images component is set to Install (not Not installed).
4. Complete the repair and verify the file OP_TP270_MP270B_V7_2_4_0.img now exists in the Images\OP_TP270_MP270B folder.

Option 7.2 — Copy the Image from a Working Station

If another engineering PC on the network has WinCC Flexible 2008 SP5 installed with the same panel support set, copy the file OP_TP270_MP270B_V7_2_4_0.img from its installation directory. Place the file in the matching directory on the workstation that will perform the update.

Option 7.3 — Obtain the Image from the Siemens Support Portal

1. Navigate to the Siemens Industry Online Support portal.
2. Search for the entry number 23075162 — "WinCC Flexible Image Update for MP270B / TP270".
3. Download the ZIP archive, extract the contents, and copy OP_TP270_MP270B_V7_2_4_0.img into the Images\OP_TP270_MP270B directory under the WinCC Flexible installation.

8. Image File Naming Reference

The Siemens image file naming convention encodes the target panel, the runtime family, and the build number. The following table lists common image filenames for the 270 series:

When transferring a project compiled against a specific runtime, the image version on the panel must be equal to or higher than the project's target runtime. Otherwise, WinCC Flexible will refuse the transfer and prompt the user to update the panel OS first.

9. Connectivity Reference

10. Verification

After the OS update completes, perform the following checks:

1. Boot screen — The panel must boot to the Siemens splash screen and then to either the project start screen or the CE desktop. If the panel remains in update mode, repeat the OS update.
2. OS version confirmation — On the panel, open the Control Panel and select OP (or System Properties in some firmwares). The runtime version should now read 7.2.4.0 (or the version of the deployed image).
3. Project transfer test — From WinCC Flexible, perform a Transfer > Download. The transfer must complete without the compatibility prompt.
4. Touch calibration — The MP270B Touch variants reset touch calibration on OS update. Re-calibrate via the Control Panel.
5. Communication — If the project uses PLC tags over MPI/PROFIBUS or PROFINET, verify tag update with the HMI tag diagnostic tool.
6. License / ProAgent — License keys and ProAgent diagnostics are stored in non-volatile memory and survive the OS update, but verify by inspecting Start Center > License.

11. Common Errors and Workarounds

12. CompactFlash Recovery Procedure

If the panel is in an unrecoverable state and neither WinCC Flexible nor ProSave can reach it, use a CompactFlash card to boot the panel into update mode and deploy the image directly.

1. Format a 1 GB or larger CF card as FAT32 on the engineering PC.
2. Create the following directory structure on the card:

\Storage Card\Images\OP_TP270_MP270B\OP_TP270_MP270B_V7_2_4_0.img

3. Power off the MP270B, insert the CF card, and power on.
4. The panel detects the image on the CF card and automatically enters update mode.
5. Wait for the panel to reboot automatically after flashing.
6. Remove the CF card when prompted, or after the panel returns to the desktop.

This method is the last-resort recovery and bypasses the engineering tools entirely.

13. Cross-Reference: Update OS on Unified Comfort Panels

Engineers migrating from MP270B to newer SIMATIC Unified Comfort Panels will notice that the OS update workflow has been moved into the panel's web-based management. The Update OS function is available under both System Properties and Service and Commissioning, as documented in the Unified Comfort Panels operating manual. The same data-destruction caveat applies — updating the operating system deletes data on the panel.

The MP270B and Unified Comfort Panel image update paths are not interchangeable. Do not attempt to flash a Unified Comfort Panel image onto an MP270B or vice versa; the bootloader checks the device signature and will reject mismatched images.

14. Preventive Practices

• Store a clean copy of every panel image version used in the plant in a versioned repository (SVN/GIT LFS).
• Maintain a "golden image" engineering PC with all WinCC Flexible service packs and the complete panel image set installed and verified.
• Document the runtime version of every panel on the network and align it with the corresponding project baseline.
• When commissioning a new panel, perform the OS update before transferring the project to avoid first-boot transfer errors.

15. Frequently Asked Questions