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System Architecture

The SAKSHAM System Architecture is a comprehensive and intelligently designed framework that ensures seamless connectivity, real-time control, and advanced data insights — right from the field level to enterprise and cloud analytics.

Level 0 - The Field Instrumentation Layer

This layer represents all physical devices installed in the plant. These instruments are directly wired to Level-1 I/O modules.

Includes:-
  • Pressure, Temperature, Flow Level Transmitters
  • Control Valves and Solenoids
  • Limit Switches and Proximity Sensors
  • Relays, Starters and Motors
  • Other analog (4–20 mA) and digital field devices
Purpose:-
  • Collect raw process signals and pass them to SAKSHAM or SIEMENS I/O racks.

Level 1 - I/O Processing and Interface Layer

  • SAKSHAM I/O Racks + wireless I/O Racks + Communication Modules
    This layer converts physical signals into usable industrial communication data.
  • SIEMENS I/O Racks (S700 / S800):-
    • Interface Modules, AI/DI, AO/DO cards
    • Communicate with S7-1500 using PROFINET
    • Internal S800 Bus support
    • PN/IO couplers for distributed I/O

    SAKSHAM I/O Racks:-

    • S700 and S800 industrial-grade modules
    • Communicate with SAKSHAM CPU using SGD Bus
    • Support Interface Modules :
      • S651-2010E(MB) MOD1
      • S651-2001E(MB) MOD1
    Communication Interfaces:-
    • PROFINET (SIEMENS side)
    • OPC-UA Server (SAKSHAM CPU)
    • AS-Network / Industrial Ethernet
    Purpose:-
    • Act as the intermediary between field instruments and Level-2 control systems.
    • Digitizes plant signals into reliable structured data.

Level 2 - Control, Monitoring and Supervisory Layer

  • SIEMENS PLC + WinCC SCADA + SAKSHAM OPC-UA
  • This is the highest layer where logic, visualization, and supervision occur.
SIEMENS S7-1500 PLC:-
  • Central control processor
  • Receives I/O from SIEMENS racks
  • Executes logic, interlocks, alarms
  • Communicates via PROFINET / AS-Network
WinCC / HMI / SCADA System:-
  • Supervisory interface for entire plant
  • Shows data, alarms, trends, controls
  • Access via :
    • SIEMENS PLC (PROFINET)
    • SAKSHAM CPU (OPC-UA)

SAKSHAM CPU:-

  • Works parallel to SIEMENS PLC
  • Provides OPC-UA open connectivity
  • Allows SCADA/MES/3rd-party access
Purpose:-
  • Control operations, visualize plant data, support diagnostics and reporting.