A Virtual Programmable Logic Controller
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A brief history
Standards
Applications
Choosing a PLC
Capabilities
Principles of operation
Hardware
Programming and boolean operations
Simulation 1 - Using the programming panel
Simulation 2 - First steps in programming
Simulation 3 - More complex networks
Simulation 4 - Set/reset and impulse relay
Simulation 5 - Using timers
Simulation 6 - Using counters
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