Let’s make sure that we recognize the problem. Notice that the switch is close to the field and electrical current is flowing, but the bit contains the zero instead of a one. Understanding that discrepancy could be critical in certain beyond beginner troubleshooting situations.
Get access to premium HV/MV/LV technical articles, electrical engineering guides, research studies and much more!
Home / Resources (video trainings, theorems) / PLC Programming Training (VIDEO Sessions) / Fundamentals of the Scan Sequence