Question

In a PLC, online programming means a program which:
1. resides in the PC or laptop
2. resides in the PLC
3. resides on the internet server
4. works through internet connectivity

Answer 1

Correct Answer - Option 2 : resides in the PLC

PLC Ladder Logic or PLC Programming:

• It is visual programming language is a PLC programming language called ladder logic or ladder diagram (LD).
• It is a graphical PLC programming language that expresses logic operations with symbolic notation using ladder diagrams.
• It looks very similar to electrical relay circuits.
• Ladder logic is mainly for bit logic operations, although it is possible to scale a PLC analog input resides in the PLC.
• Ladder logic is a fast and simple way of creating logic expressions for a PLC in order to automate repetitive machine tasks and sequences.
• It is used in a multitude of industrial automation applications.
• Some industrial automation applications are Ball Mill Lubrication System, Logistics Package Conveying and Sorting, Cement Batching, etc