Link a PCS 7 Logic Block Output to a WinCC Button Color

To change a WinCC button's Runtime color from a PCS 7 logic-block output, the output must be available as a WinCC tag and the button's color property must be dynamically linked to that tag or to a documented tag-based color animation. The source discussion's attached screenshot is not available in the text, so it does not establish the exact block output, button property, or configuration steps used; confirm those details in the WinCC version installed in the project.

What must be connected

There are two distinct parts: expose the required logic-block output to WinCC as a process tag, then make the intended button color property dynamic using that tag. A signal existing in the AS does not by itself animate a graphic object. The ticket calls the block “_lgc” but provides no full block type, output identifier or tag name.

Choose a supported color-dynamic method

WinCC Graphics Designer supports dynamic object properties and tag-linked color behavior in its version-specific tooling. Depending on the object and software version, the property may be configured through an object property's dynamic dialog or a Dynamic Wizard. The available source does not identify the button object type or software release, so exact property names and wizard availability must be confirmed in the installed WinCC manual. Do not assume a generic button exposes the same color property as a PCS 7 faceplate.

Configuration workflow

Identify the exact Boolean or enumerated output on the logic block and confirm its data type and runtime value in the AS.
Ensure that output is represented by the correct WinCC process tag in the OS project using the project's standard PCS 7 tag/OS engineering workflow.
Open the process picture in Graphics Designer and select the actual button or faceplate object.
Inspect its properties and select a supported dynamic color property. Link the animation to the WinCC tag or configure the release-appropriate tag-based color mapping.
Define state-to-color values only after confirming the signal states and intended operator meaning; retain clear visual distinction and the project's color conventions.
Compile/update the OS as required for that release, run Runtime under change control, and verify each input state against the displayed color.

Verify the signal-to-color mapping

Observe the AS output, corresponding WinCC tag, and rendered button together. Confirm the correct state is represented at Runtime, the update occurs when the tag changes, and other states do not accidentally select a conflicting color rule. If the button is a PCS 7 faceplate or a library object, verify that its property supports the chosen animation mechanism before editing it.

Why the missing screenshot matters

The reply refers to an attached image as the actual step-by-step answer, but that image is unavailable. It may show a particular object, property or color-dynamics wizard. Without it, the exact UI sequence cannot be reconstructed safely. Also absent are PCS 7/WinCC version, full block type, output name, button class, and desired state/color mapping.

Version applicability

WinCC animation features and available wizards vary by product generation and object type. The official WinCC V8.1 manual search result describes Dynamic Wizard color dynamics, but its PDF was inaccessible during this research and V8.1 is not confirmed as the ticket's version. Treat this as a general workflow, not a verified click-by-click procedure for the unknown project.

Verification

In a controlled test, correlate the block output's online state with its WinCC tag value and the visible button color. Test every intended state, including the normal/off state, and confirm Runtime behavior after the project's required compile/update procedure. A configuration accepted by Graphics Designer alone does not prove the correct AS signal is driving the correct object property.

Limitations and Operational Precautions

The exact original resolution is contained only in an unavailable attachment; this article cannot reproduce it. No block output name, tag path, color encoding or tested result is supplied. Do not alter a live operator graphic or create colors that conflict with plant alarm/status conventions without the site's normal review and change-control process.

Engineer FAQ

Can a PLC/AS output directly change a button color? It can drive a WinCC dynamic property when the output is exposed as a WinCC tag and the selected object property supports that kind of animation; verify the exact implementation in the installed version.

What details are missing for exact instructions? PCS 7/WinCC version, block type, output identifier and data type, tag mapping, button/object type, and the referenced screenshot.

Should I use a Dynamic Wizard? Use it only if it is available for the installed project/version and selected object. Confirm that it controls the intended button color property.

How do I prove the mapping works? Compare the AS output, WinCC tag value and visible Runtime color while each intended state is exercised under approved test conditions.

Can the same procedure be assumed for PCS 7 faceplates? No. Faceplates or library objects may expose different configurable properties; verify the object's supported customization method.

Technical References

Siemens, SIMATIC HMI WinCC V8.1 – Working with WinCC (Part 1), §5.4 “Dynamic Wizard,” including tag-linked dynamic color properties. Siemens document URL (PDF access returned HTTP 403 during research): https://support.industry.siemens.com/cs/attachments/109986766/WinCC_Working_with_WinCC_Part1_en-US_en-US.pdf
Siemens, PCS 7 SMART Getting Started – Part 1 (V8.2 with APL), §9.6 “Working in general with the Graphics Designer,” describing static and tag-connected dynamic objects. Siemens document URL (PDF access returned HTTP 403 during research): https://support.industry.siemens.com/cs/attachments/109478794/ps7gs1_b_en-US.pdf

Related Tags

PCS 7

WinCC Graphics Designer

Dynamic color

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Link a PCS 7 Logic Block Output to a WinCC Button Color