In order for a PLC to control an automated machine or process, it must be given a set of instructions. These instructions, or user programs, tell the PLC what inputs to monitor, how to process the data, and how to respond to the inputs.
Estimated completion time (hours): 1.6
Objectives
By the end of this course, you will be able to do the following:
- Identify the four steps a PLC performs during operation
- Define the term input scan
- Define the term program scan
- Define the term output scan
- Identify the symbols representing normally open and normally closed contact relays
- Identify the two structures used for programming
- Maintenance Technician 3
Estimated Time (Hrs): 1.6
Language: English