May 31, 2026  
2025 - 2026 Eastern Iowa Community Colleges Catalog 
    
2025 - 2026 Eastern Iowa Community Colleges Catalog [ARCHIVED CATALOG]

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ELT 123 - Programmable Logic Controllers


Credit(s) 3.00
Lecture Hours: 2.00
Lab Hours: 2.00
This course introduces students to basic programmable logic controller (PLC) operation and ladder logic programming including relay logic, program control, timer, and counter instructions. PLC hardware, programming devices, memory, and wiring are also included.

Prerequisite(s): CSC 110  or CSC 113 , and ELE 225  
SLOs:
Upon successful completion of this course, students will be able to:

  • Describe the four major components of a Programmable Logic Controller (PLC).

  • Describe the operation of input and output modules.

  • Convert from one numbering system to another.

  • Convert relay ladder diagrams to PLC Ladder Logic programs.

  • Develop Ladder Logic programs using timer, counter, and program control instructions.



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