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PLC Programming

Programmable controllers are at the core of process control. These controllers may be small, Programmable Logic Controllers – PLC and Programmable Electronic Safety-related Systems – PES.

SEID has been successfully implementing programmable controllers since our company’s founding. In fact, we are a leader in the process-control industry, recognized as an authorized System Integrator (SI) by all major industrial programmable controller manufacturers.

SEID‘s success and recognition as a programmable controller system integrator can be attributed to our 20+ years of experience and our proven project methodology that includes:

  • Documenting programs with instruction comments, tag descriptors, rung comments and annotated program files
  • Utilizing standard template methodology that includes repeated functions such as motor control, valve control and analog input control.
  • We have developed templates that include:
    • Motor control
    • Valve control
    • Analog monitoring
    • Discrete alarms
    • PID control loops (feed forward, cascade, etc.)
    • Alarm sequence

Our process-control programming expertise has been applied across many industries for many different process applications, including:

  • Standards development
  • Sequences
  • Lead/lag logic
  • Mass balance logic
  • Load-sharing logic
  • Checked I/O logic
  • Alarm handling
  • SCADA systems
  • Languages–Ladder Logic, Sequential Function Chart, Structured Text, Function Block Diagram
  • Safety Instrumented System (SIS) with Safety Instrument Function (SIF)
  • Functional Safety of Electrical/Electronic/Programmable Electronic Safety-related Systems

PLC      PLC

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Pursuing satisfaction of our clients in the Automation Industry, we tackle each challenge with safe, reliable and innovative solutions. We entrust our competent to provide sustainable development for our company and for the communities where we operate.


Via V. Veneto 125/I - 24020 Songavazzo (BG) - IT
Phone: +39 0346 72005
Fax: +39 0346 74248


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