C135 PCS 7 (PCS7)
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6 Cielo Ciencia y Tecnología
·Publicada en C135 PCS 7 (PCS7)

Siemens Industrial Turbomachinery APX Library in PCS 7 - Scope, Function, and Access Boundaries

Siemens Industrial Turbomachinery APX Library in PCS 7 - Scope, Function, and Access Boundaries

In SIMATIC PCS 7 environments, the 'APX Library' stands for Advanced Packaging eXtension (or Application Package Extension), an internal proprietary software library developed specifically by the Packaging Design Group of Siemens Industrial Turbomachinery (SIT) in Lincoln, UK and Finspong, Sweden (now Siemens Energy). It is not a standard, publicly available commercial PCS 7 library like APL or Industry Library. APX blocks are engineered exclusively for industrial gas turbine auxiliary skids (such as fuel gas systems, lube oil skids, and turbine purge sequences on SGT-100 through SGT-400 turbines). It cannot be downloaded from Siemens Industry Online Support (SIOS); end users requiring APX blocks or documentation must contact Siemens Energy Turbomachinery services directly with verified turbine serial numbers.

Table of Contents

Executive Summary

Plant engineers and commissioning technicians servicing power generation or gas compression plants occasionally encounter unfamiliar function blocks in PCS 7 CFC charts referencing the 'APX Library'. When attempting to search Siemens Industry Online Support (SIOS) or standard PCS 7 catalogs to obtain block documentation, official library installers, or upgrade paths, they find zero public references. This technical reference clarifies the origin, engineering scope, and distribution boundaries of the SIT APX Library, details its relationship to the standard PCS 7 Advanced Process Library (APL), and provides the official communication pathway to obtain technical support.

Architecture and Fundamental Mechanics

The Commercial and Intellectual Property Boundary: APX vs. Standard PCS 7

+-------------------------------------------------------------------------+
|                    SIEMENS AUTOMATION SOFTWARE ECOSYSTEM                |
+-------------------------------------------------------------------------+
                                    |
         +--------------------------+--------------------------+
         |                                                     |
         v PUBLIC COMMERCIAL CATALOGS                          v PROPRIETARY OEM SKID CODE
+------------------------------------+           +------------------------+
| Standard SIMATIC PCS 7 Libraries   |           | Siemens Energy / SIT   |
| (Public Siemens Industry Mall)     |           | Turbomachinery Unit    |
|                                    |           |                        |
| - Advanced Process Library (APL)   |           | APX LIBRARY:           |
| - Industry Library (IL)            |           | - Advanced Packaging   |
| - CEMAT (Minerals & Cement)        |           |   eXtension            |
| - BRAUMAT / SISTAR (Brewing)       |           | - Built by SIT Lincoln |
|                                    |           |   & Finspong Groups    |
| [SUPPORT]:                         |           | [SUPPORT]:             |
| - Public SIOS Manuals & Downloads  |           | - Strictly OEM support |
| - Authorized Siemens Distributors  |           | - Requires Turbine S/N |
+------------------------------------+           +------------------------+

The Engineering Role of the APX Library

  1. Turbomachinery Packaging: Industrial gas turbines (such as the Siemens SGT-100, SGT-200, SGT-300, and SGT-400) require specialized mechanical auxiliary packaging. The SIT Packaging Design Group created the APX library to standardize the automation of lube oil cooling, fuel gas heating, compressor water wash, and hydraulic start skids within PCS 7.
  2. Custom Block Architectures: APX blocks encapsulate proprietary turbine protection logic, specialized valve stepping sequences, and turbine-specific diagnostic alarms that exceed the generic functionality of standard APL blocks.
  3. Distribution Safeguards: Because APX code represents proprietary OEM turbine design intellectual property, Siemens Energy strictly restricts its distribution. Unrestricted public downloads are prohibited to protect turbine warranty agreements and operational safety.

Step-by-Step Implementation Procedure

Step 1: Identify APX Block Instances in CFC

  1. In SIMATIC Manager, open your CFC charts.
  2. In the chart catalog tree, expand Libraries.
  3. Locate any block family or block container named APX or containing prefixes like APX_....
  4. Open block properties to identify the block author (SIT), block number (e.g., FB500+), and version timestamp.

Step 2: Retrieve Turbine Skid Identification Data

  1. Because Siemens Energy will not release APX files to unverified parties, locate the physical turbine packaging rating plate:
    - Turbine Model: (e.g., SGT-300 / Typhoon / Tornado)
    - Turbine Serial Number: (e.g., SGT-XXXXX)
    - Original Contract / Project Reference Number.
  2. Document the exact plant owner, facility location, and operating company identity.

Step 3: Contact Official Siemens Energy Turbomachinery Service

  1. Do not contact general Step 7 / PCS 7 support on SIOS, as general DCS support engineers do not have access to internal SIT packages.
  2. Contact the dedicated Siemens Energy Industrial Turbomachinery Service Division (Lincoln, UK / Finspong, Sweden) or your regional Siemens Energy contract manager.
  3. Submit an official Technical Service Request citing the turbine serial number and requesting the authorized APX Library documentation or update package.

Step 4: Upgrading or Modifying Plants with APX Blocks

  1. If upgrading a PCS 7 plant containing legacy APX blocks (e.g., migrating from V8.0 to V9.1):
  2. Request the official APX migration build from Siemens Energy that has been recompiled and validated against the target PCS 7 and APL version.
  3. Never attempt to decompile or modify protected internal APX blocks, as unauthorized alterations can invalidate the turbine's factory warranty and mechanical safety certifications.

Verification

  1. Turbine Serial Validation: Verify that the block version matches the OEM engineering documentation provided in the turbine's Operations and Maintenance (O&M) manuals.
  2. Compilation Integrity: When compiling CFC charts, verify that APX blocks compile cleanly with zero timestamp errors against the active Master Data Library.
  3. Official Channel Confirmation: Confirm that software media and technical documentation originate directly from an authorized Siemens Energy representative.

Limitations and Operational Precautions

  1. No Public SIOS Downloads: Technical support for APX is not provided through public SIOS forums; forum moderators are instructed to close public requests for internal OEM libraries.
  2. Warranty and Safety Compliance: Altering turbine control logic without OEM engineering oversight introduces severe risks of turbine overspeed, thermal shock, or mechanical destruction.

Engineer FAQ

What does the APX library stand for?

It stands for Advanced Packaging eXtension (or Application Package Extension), developed by Siemens Industrial Turbomachinery (SIT).

Can I download the APX library from SIOS?

No. It is an internal proprietary library belonging to Siemens Energy and is not available for public download.

Where was the APX library developed?

By the Packaging Design Group of Siemens Industrial Turbomachinery in Lincoln, UK and Finspong, Sweden.

What equipment uses the APX library?

Siemens industrial gas turbine skids (SGT-100, SGT-200, SGT-300, SGT-400) for auxiliary systems like lube oil and fuel gas.

How can I get documentation for an APX block?

Contact Siemens Energy Turbomachinery services directly, providing your facility's turbine serial number.

Is APX an official part of standard PCS 7?

No. It is an OEM application library layered on top of PCS 7, not part of the standard commercial APL catalog.

What happens if I try to upgrade PCS 7 on a turbine skid?

You must obtain an updated, certified APX library release from Siemens Energy compatible with the target PCS 7 version.

Why does Siemens Energy restrict the APX library?

To protect proprietary turbomachinery engineering intellectual property, turbine warranties, and process safety.

Are APX blocks compatible with APL faceplates?

APX blocks utilize customized WinCC faceplates engineered specifically for turbomachinery operator interfaces.

Can standard PCS 7 distributors sell the APX library?

No. It is distributed exclusively through Siemens Energy Turbomachinery service contracts, not standard automation distributors.

Technical References

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Related Tags

  • APX Library
  • Siemens Energy
  • SIT Turbomachinery
  • Gas Turbines
  • OEM Libraries
  • PCS 7 Engineering
  • SGT Turbines
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