.NET 8 Blazor application for industrial communication with Siemens S7 PLCs. Inherits production-proven logic from MHT-Siemens (legacy .NET Framework WinForms) and restructures it into a modular, testable architecture.

Build & Run

# Build
dotnet build solution/src/PlcVanguard.Web/PlcVanguard.Web.csproj

# Run (Blazor Server)
dotnet run --project solution/src/PlcVanguard.Web/

Browse to https://localhost:5001 (or the URL shown in console).

Project Structure

solution/
├── src/
│   ├── PlcVanguard.Core/    PLC communication layer (S7.net, polling, persistence)
│   └── PlcVanguard.Web/     Blazor Server UI + API glue
└── PlcVanguard.slnx

Architecture

Layer	Project	Technology
PLC Driver	`PlcVanguard.Core`	S7.net 0.2.0
Pollers	`PlcVanguard.Core/PLC`	BackgroundService, ContinuousPoller, OnEventPoller
State	`PlcVanguard.Core/State`	In-memory state management
Persistence	`PlcVanguard.Core/Persistence`	File, Redis, MariaDB (EF Core)
UI	`PlcVanguard.Web`	Blazor Server, SVG charts

See ARCHITECTURE_AND_SPEC.md for full spec.

Pages

Page	Route	Description
Dashboard	`/`	Live counters, trendline SVG, historical records
Comparison	`/comparison`	Multi-record comparison with live reference line
Counter	`/counter`	Single counter monitoring

Current Status

Completed (Phases 1-10)

.NET 8 solution scaffold with 2 projects
S7.net 0.2.0 PLC driver (S7PlcService)
Continuous poller (ContinuousPoller)
On-event poller (OnEventPoller)
Hosted service with reconnect logic (PlcHostedService)
State manager (StateManager)
Persistence: File, Redis, MariaDB (entity scaffolds complete)
Blazor Web with DI integration
Dashboard page with live monitoring
Comparison page with SVG chart

Pending

REST API Controllers (StateController, RecordsController)
SignalR Hub for real-time push to clients
Auth middleware
EF Core database migration / seeding
Unit tests

PLC Configuration

Default connection (in Program.cs):

Parameter	Value
IP Address	`192.168.0.102`
CPU Type	S7-1500
Rack	0
Slot	1

Legacy Baseline

Original WinForms app: MTH-Siemens/ (.NET Framework 4.0)

Source: MTH-Siemens/SiemenProxy.cs
Config: MTH-Siemens/setup.json
PLC write: REAL (double) via S7.Net.Types.Double.ToByteArray()

Git Workflow

Tasks are developed on feature/ branches and merged to develop. Current branch: develop.