A Virtual Programmable Logic Controller |
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PLC Home 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 |
Choosing a PLCIf your company is involved in the design and installation of process control systems, the choice of PLC will be largely application led. On the other hand, a company which has a number of processes to automate will often standardise on a particular type of PLC for all of their applications. One reason for doing so is that there are cost implications involved with regard to hardware and software support for a particular PLC. |