1. Contact and Coil Instructions Programming Principles of PLC Ladder Diagram Language 1. The ladder diagram consists of multiple rungs, each coil can form a rung, and each rung has multiple branches, representing a logical equation; 2. The relays, contacts, and coils in the ladder diagram are not physical but are bits in the PLC … Read more
Search on WeChat Jicheng Training If you’ve had any experience with PLC programming, you’ve probably heard terms like self-locking, interlocking, and mutual locking. These are typical fundamental programming steps in PLC programming that we must master. Below, I will share several of the most classic small programs. 1. Self-Locking (Start-Stop Control) Self-locking requires a normally … Read more
1. Start-Stop Control Circuit Control requirements: Press the start button (I0.0 is ON), Q0.0 is ON; Press the stop button (I0.1 is OFF), Q0.0 is OFF. The ladder diagram is shown in Figure 1. Figure 1 Start Priority 2. Interlock Control Circuit In the interlock circuit shown in Figure 2, I0.0 and I0.1 are the … Read more
1. Contact and Coil Instructions Programming Principles of PLC Ladder Diagram Language 1. The ladder diagram consists of multiple rungs, with each coil forming a rung, and each rung having multiple branches, representing a logical equation; 2. The relays, contacts, and coils in the ladder diagram are not physical; they are bits in the PLC … Read more
PLC and RFID System Communication: Writing PLC for Smoother Data Reading Using PLC to control the RFID system, achieving data reading, authorization verification, applicable in logistics and warehousing. Today, I will guide you step by step! Project Requirements and Functionality Description The requirements for this PLC and RFID communication project are: Read data from the … Read more