Can CCPerfmon, OSLTMHandlerX and S7JCBAAX Be Removed from a PCS 7 OS Startup List?

Do not delete CCPerfmon, OSLTMHandlerX or S7JCBAAX from a PCS 7 OS startup list solely because the executables are absent from a WinCC\bin folder. The documented PCS 7 Maintenance Station workflow removes OSLTMHandlerX and related applications by changing the diagnostic-screen derivation and server-package configuration, then compiling the project. The exact role of S7JCBAAX is not established by the available documentation, so its removal cannot be recommended from its name or path.

Why task names alone are insufficient

An OS startup entry can belong to an installed PCS 7 option, a shared Siemens component or a migrated project configuration; its executable may reside outside the WinCC\bin directory. The ticket reports a candidate Siemens common-binaries path for S7JCBAAX and a possible Station Observer context for CCPerfmon, but does not establish the installed releases or project feature dependencies.

OSLTMHandlerX and Maintenance Station configuration

The PCS 7 Maintenance Station Function Manual describes turning off the option to derive diagnostic screens from the plant hierarchy and removing unneeded server packages from the assignment. It lists OSLTMHandlerX.exe among applications removed from the startup list by this project-level workflow. This is a configured Maintenance Station change, not a general instruction to manually erase a task entry.

Documented project-level procedure

Use the procedure only when intentionally changing the Maintenance Station configuration in the matching PCS 7 release:

Back up the PCS 7 project and record the current Maintenance Station and OS server-package assignments.
In the version-matched project configuration, review whether diagnostic screens are derived from the plant hierarchy and which server packages are assigned.
If the feature is not required, disable the diagnostic-screen derivation setting and remove only server packages confirmed as unnecessary for the project.
Compile the affected project components using the release-specific engineering workflow.
Inspect the resulting OS startup configuration and confirm the expected applications were removed through the project workflow.
Deploy only after review and site change approval; verify Maintenance Station diagnostics and OS operation afterward.

CCPerfmon requires version-specific identification

The Siemens historical WinCC V4.x Tips and Tricks document describes CCPerfMon.exe as a resource-monitoring component for that older release. That evidence does not establish the role of a similarly named executable or startup entry in a later PCS 7 project. Identify the exact binary path, file version, product installation and project option before changing it.

S7JCBAAX remains unresolved

The source associates S7JCBAAX.exe with a Siemens common-binaries directory but offers only a guess about its function. The references available here do not verify that identification or document a safe removal method. Leave the entry unchanged until the installed release's Siemens documentation or product support identifies its owning component and removal procedure.

Verification

After a project-level configuration change and compile, compare the generated OS startup list with the intended feature configuration. Confirm Maintenance Station screens and diagnostics still behave as required, and verify the OS server starts without missing-component reports. A missing file in one expected directory is not proof the task is obsolete.

Limitations and Operational Precautions

The ticket does not state PCS 7, WinCC or Maintenance Station versions and provides no exact executable path or file metadata for all three entries. The official Maintenance Station procedure is specific to its documented configuration and release; it does not authorize manually deleting startup entries. CCPerfmon evidence cited here is historical WinCC V4.x only. S7JCBAAX's role remains unknown.

Engineer FAQ

Can OSLTMHandlerX be removed manually? The cited PCS 7 documentation describes removing it by changing Maintenance Station configuration and compiling, not by deleting the startup item directly.

Does CCPerfmon always mean the old WinCC V4.x monitor? No. The cited description is scoped to WinCC V4.x and cannot identify a later component without its version and path.

Is S7JCBAAX a Channelbroker? The source speculates about that name, but the available manufacturer reference does not verify it.

Why might an executable be outside WinCC\bin? Shared components may be installed in other product directories; establish ownership from the installed release and file metadata before changing the startup configuration.

What is the safe removal criterion? Identify the owning feature, use its documented project configuration workflow, compile, then verify generated startup and required OS/Maintenance Station functions.

Technical References

Siemens, Process Control System PCS 7, Maintenance Station, Function Manual 05/2017, A5E41291135-AA, section on deriving diagnostic screens and server packages: https://cache.industry.siemens.com/dl/files/697/109748697/att_924130/v1/PCS7_MaintenanceStation_en-US_en-US.pdf
Siemens, Process Control System PCS 7, Tips and Tricks, historical WinCC V4.x CCPerfMon description (scope limited to that release): https://cache.industry.siemens.com/dl/files/410/7214410/att_50302/v1/S7Prax_e.pdf