Are VMware ESXi 6.7 Updates U1–U3 Applicable to PCS 7 V9.0 SP2?

The PCS 7 V9.0 SP2 Readme identifies VMware ESXi 6.7 as a tested version, but that statement alone does not establish approval of every ESXi 6.7 Update build. The exact U1, U2 or U3 host build must be checked against Siemens' compatibility information for the applicable PCS 7 release, hardware and virtualization configuration. The ticket reply's broader claim that all sub-updates are included is not substantiated by the cited Readme.

What the PCS 7 V9.0 SP2 Readme establishes

The Readme lists VMware ESXi V6.5 and V6.7 in the tested virtualization environment and identifies corresponding virtual machine hardware versions. It does not enumerate ESXi 6.7 U1, U2 or U3 in the cited entry. A major/minor version match is therefore not enough to conclude that a particular patched host build is approved.

Check the exact host build

Record the complete ESXi version and build number from the host, not only “6.7.” Include the Update level and any vendor image/customization relevant to the host.
Identify the exact PCS 7 V9.0 SP2 installation and the applicable Siemens compatibility-tool product/configuration entries.
Compare the proposed host build and virtual machine hardware version with the Siemens entries and their notes. Confirm the relevant server/client role and supported hardware configuration.
If using a Siemens virtualization service or support agreement, obtain version-specific written guidance from the responsible provider before patching; do not treat a ticket reply as a general release authorization.
Before an approved host change, follow the site's backup, maintenance, rollback and recovery plan. Validate PCS 7 services and project/runtime operation after the change before returning the system to service.

Separate version families from tested combinations

A compatibility listing can apply to a particular product release, role, hardware configuration and tested combination. It should not be read as blanket approval for all patch-level updates unless the Siemens entry explicitly says so. Preserve the distinction between PCS 7 V9.0 SP2, ESXi 6.7's exact build, VM hardware version and any supporting infrastructure.

Verification

Before changing a production host, locate the exact combination in the Siemens compatibility tool or receive applicable written manufacturer guidance. After an approved change, verify host health, VM startup, PCS 7 component status, OS communication and the project functions required by the site. A successful VM boot alone does not verify PCS 7 operation.

Limitations and Operational Precautions

The ticket does not identify a host build number, server role, hardware platform or compatibility-tool record. The PCS 7 Readme's tested ESXi 6.7 reference does not answer U1/U2/U3 individually. The article therefore cannot declare those Updates approved. Host patching can affect virtualized control-system availability; use a scheduled maintenance window and tested rollback plan.

Engineer FAQ

Does “ESXi 6.7 tested” automatically include U1, U2 and U3? The cited PCS 7 Readme does not say that. Check the exact host build in the matching compatibility record.

What details should be recorded? ESXi full version/build, Update, vendor image, VM hardware version, PCS 7 release and the server/client role.

Is a VM hardware version a substitute for host compatibility? No. It is a separate configuration detail and must be checked alongside the host and PCS 7 release.

Does the ticket reply establish Siemens approval? No. It is a reply, while the cited manufacturer Readme provides only the tested ESXi version families and does not list the three Update builds.

What validates a host patch after change? Check host/VM health and the required PCS 7 services, communication and operating functions; VM boot alone is insufficient.

Technical References

Siemens, PCS 7 Readme V9.0 SP2, virtualization requirements and tested VMware ESXi versions: https://support.industry.siemens.com/cs/attachments/109744312/pcs7-readme_en-US.pdf
Siemens Compatibility Tool: https://support.industry.siemens.com/cs/ww/en/view/64847781