And, the ability to monitor PLC logic in ladder diagram format also made troubleshooting easier for those already familiar with relay-based control systems. Although there are many higher-level ...

Ladder Diagram example. Source: automationprimer.com Though PLC (programmable logic controller) programming languages may not receive the attention that general computing programming languages, such ...

If you are used to conventional programming, you may find ladder logic a little frustrating. Originally, it was a documentation tool for relay logic but has grown to handle modern cases.