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AliSavarnejad/README.md

Ali Savar Nejad

PLC/SPS Programmer and Automation Engineer in Germany, building practical IT/OT portfolio projects based on industrial automation experience.

My background is in Siemens PLC programming, TIA Portal, STEP 7, WinCC/HMI/SCADA, commissioning, troubleshooting, industrial networks, drives, robot interfaces, and production automation systems.

I am expanding my automation background toward IT/OT topics such as industrial network architecture, OPC UA, machine connectivity, production data flow, SCADA/MES interfaces, SQL-based production data modeling, validation, and industrial data analysis.

Current Focus

I am building a practical portfolio that connects automation engineering with IT/OT and industrial data topics.

The main direction is:

PLC / Automation → IT/OT → Machine Data → Production Data → Industrial Analytics

My target direction is an Automation Engineer role with IT/OT focus, or an IT/OT role where my PLC and automation background is a strong technical foundation.

Technical Background

  • Siemens PLC programming
  • TIA Portal and STEP 7
  • WinCC and WinCC Unified
  • HMI/SCADA systems
  • Commissioning and troubleshooting
  • Industrial networks
  • Drives and robot interfaces
  • PLC-to-HMI and PLC-to-SCADA communication
  • Production automation documentation

IT/OT Portfolio Projects

1. Industrial IT/OT Network Architecture

Conceptual industrial IT/OT network architecture covering factory network segmentation, VLAN/IP planning, firewall rule logic, Industrial DMZ, secure remote access, and communication matrix documentation.

Repository: industrial-it-ot-network-architecture

2. OPC UA Machine Data Flow and Communication Matrix

Conceptual OPC UA documentation project showing machine data flow from PLC systems to SCADA, historians, MES, dashboards, and IT/OT systems using server/client roles, address-space modeling, communication matrices, and secure access concepts.

Repository: opc-ua-machine-data-flow

3. Production Data Model and MES/Data Flow

SQLite-based IT/OT production data model showing machine data, production orders, alarms, cycle records, energy readings, validation queries, and MES-style data flow documentation.

Repository: production-data-model-mes-flow

4. Simulated PLC Machine Data and Anomaly Analysis

Python-based project for simulating PLC-style machine operation data, including machine states, fault events, anomaly labels, validation checks, visual outputs, and engineering interpretation.

Repository: simulated-plc-machine-data-anomaly-analysis

Additional Industrial Data Project

Steel Energy Consumption Prediction

Industrial machine learning project focused on predicting steel industry energy consumption using data analysis and machine learning models.

Repository: steel-energy-consumption-prediction

Portfolio Direction

The portfolio follows a practical sequence:

Network → Protocol → Data → Analysis → Industrial AI

This means:

  • The network project explains where industrial data moves in an IT/OT environment.
  • The OPC UA project explains how selected machine data can be exposed from PLC-level systems.
  • The production data project explains how machine and production data can be structured in SQL for MES-style reporting.
  • The simulated machine data project shows how PLC-style machine behavior, faults, and anomalies can be generated, validated, visualized, and analyzed.
  • The energy prediction project shows the later direction toward industrial data and machine learning.

Focus Areas

  • Machine connectivity
  • Production data flow
  • SCADA/MES interfaces
  • OPC UA
  • SQL-based production data modeling
  • Industrial data validation
  • Maintenance-oriented reporting
  • Industrial analytics

Goal

My goal is to move toward IT/OT and industrial data roles while using my PLC and automation experience as a strong technical foundation.

Pinned Loading

  1. industrial-it-ot-network-architecture industrial-it-ot-network-architecture Public

    Conceptual industrial IT/OT network architecture for segmented factory connectivity, controlled production data exchange, and secure remote access.

    Mermaid

  2. opc-ua-machine-data-flow opc-ua-machine-data-flow Public

    Conceptual OPC UA documentation project showing machine data flow from PLC systems to SCADA, historian, MES, dashboards, and IT/OT systems using server/client roles, address-space modeling, communi…

    Mermaid

  3. production-data-model-mes-flow production-data-model-mes-flow Public

    SQLite-based IT/OT production data model showing machine data, production orders, alarms, cycle records, energy readings, validation queries, and MES-style data flow documentation.

    Jupyter Notebook

  4. simulated-plc-machine-data-anomaly-analysis simulated-plc-machine-data-anomaly-analysis Public

    Reproducible Python workflow for simulating PLC-style machine operation data, fault events, anomaly labels, validation checks, and visual outputs.

    Python