Troubleshooting 'New Project Wizard' Failures to Launch in SIMATIC PCS 7 V9.0

In SIMATIC PCS 7 V9.0, when clicking 'New Project Wizard' (File -> 'New Project' Wizard) produces no response other than a brief loading cursor, the failure is typically caused by a COM automation registration crash in the wizard binary (s7pwiafx.exe), template library corruption, or multiple Master Data Libraries flagged in the project registry. While updating the Engineering Station to PCS 7 V9.0 SP1 or SP2 provides a permanent binary patch, engineers can bypass the wizard immediately by selecting File -> New, creating a standard Multiproject, inserting an AS station and PC station, and assigning a clean Master Data Library manually. This manual workflow establishes a fully functional multiproject in under two minutes.

Architecture of the PCS 7 'New Project Wizard' Engine

The SIMATIC PCS 7 'New Project Wizard' is a high-level automation script designed to help beginners and rapid-prototyping engineers initialize a complete distributed control architecture. When invoked from SIMATIC Manager (File -> 'New Project' Wizard...), the wizard engine executes several automated background steps:

Generates the central Multiproject shell.
Inserts an S7-400 Automation Station (AS) configured with selected CPU models (e.g. CPU 410-5H, CPU 416-3 DP).
Inserts an Operator Station (OS) configured as Single Station, Server, or Client.
Instantiates a Master Data Library containing core technological blocks.
Builds the initial Plant Hierarchy (technological folder levels) and inserts basic CFC charts.

The wizard relies on COM interface bindings between s7pwiafx.exe, Microsoft SQL Server (for OS generation), and STEP 7 project templates stored in C:\Program Files (x86)\SIEMENS\STEP7\S7PROJ.

Diagnostic Causes of Silent Wizard Launch Failures

When an engineer clicks the wizard and the cursor spins momentarily before disappearing with zero error messages, the failure stems from specific subsystem collisions:

Failure MechanismAffected ComponentUnderlying Root CauseResolution StrategyDuplicate Master Data LibrariesSTEP 7 Project RegistryMultiple libraries in the project workspace claim Master Data statusReset library assignment in SIMATIC ManagerCOM Automation Crashs7pwiafx.exe / Win32 APIUnhandled exception in wizard template parser under 64-bit Windows 7/10Install PCS 7 V9.0 SP1 / SP2 patchTemplate Corruption...\STEP7\S7PROJ\TemplateTemplate database files (.s7p) corrupted or read-onlyRestore templates from original DVD mediaSQL Server TimeoutSQL Server (WINCC)WinCC database engine fails to respond to wizard automation callsVerify SQL Server services in services.msc

Because the wizard does not present a diagnostic error log upon crashing, engineers often spend hours troubleshooting in vain.

Immediate Manual Multiproject Creation Workaround

Engineers do not need to reinstall Windows or wait for service pack downloads to continue engineering. A complete, guardrails-compliant PCS 7 Multiproject can be created manually in under two minutes using the standard creation tools:

Create Multiproject Container: In SIMATIC Manager, select File -> New.... Select the Multiproject tab. Enter a name (e.g., Plant_Unit_01) and choose storage location. Click OK.
Insert User AS Project: With the Multiproject highlighted, select Insert -> New Project. Name it AS_01. SIMATIC Manager inserts a clean automation project folder.
Insert Master Data Library: Select Insert -> New Library. Name it Master_Data_Library. Right-click the newly created library and select Master Data Library -> Set as Master Data Library. (A blue open-book icon appears over the library folder).
Insert Automation Station and OS Station:
- Right-click AS_01 -> Insert New Object -> SIMATIC 400 Station.
- Right-click AS_01 -> Insert New Object -> SIMATIC PC Station (for OS Server or Single Station).
Configure Plant Hierarchy: Select Options -> Plant Hierarchy -> Customize.... Define the required number of technological levels (e.g. Plant, Area, Unit). Insert a CFC chart into the unit folder.

This manually created structure is 100% architecturally identical to a project created by the wizard.

Verification

Verify manual project configuration and system health through these diagnostic steps:

Master Data Library Verification: Open SIMATIC Manager Component View. Confirm that exactly ONE library displays the blue 'Master Data Library' insignia.
CFC Program Compilation: Insert an APL block (MonAnL) into a test CFC chart. Execute Chart -> Compile -> Chart as Program. Verify that compilation succeeds with 0 Errors.
AS-OS Engineering Link: Open HW Config for the PC Station. Insert a WinCC Application. Run an OS compilation from SIMATIC Manager (Compile OS -> Changes Only). Verify that WinCC Tag Management compiles tags cleanly.

Limitations and Operational Precautions

When creating PCS 7 multiprojects manually, observe these architectural rules:

Never Have Multiple Master Data Libraries: A Multiproject must have exactly ONE Master Data Library. Having multiple libraries flagged as Master Data causes compiler confusion and disables block type synchronization.
Permanent Computer Name Assignment: Before configuring the WinCC PC Station in HW Config, ensure the target PC has its permanent computer name assigned in Windows. Never rename stations after creation.
Service Pack Upgrade Recommended: While the manual workaround allows immediate project execution, apply PCS 7 V9.0 SP1 or SP2 during the next maintenance window to resolve the underlying COM wizard registration defect.

Engineer FAQ

Is a project created manually identical to one created by the wizard?

Yes. The wizard is simply an automation macro that performs the exact same sequential steps (creating project, library, stations, and hierarchy). The resulting databases are 100% identical.

Why did reinstalling PCS 7 base V9.0 not fix the wizard?

The launch failure is a known software bug in the base V9.0 release binaries under 64-bit Windows. Reinstalling the same base version reintroduces the flawed binary; only SP1/SP2 or manual creation resolves it.