Why Should Emergency Stop in PLC Programming Be Wired as Normally Closed?

Why Should Emergency Stop in PLC Programming Be Wired as Normally Closed?

In PLC programming, the physical contact of the stop button is generally connected as normally closed, while in the program, it is written as normally open. This type of stop button only serves as a signal in this equipment.Why is the emergency stop in PLC programming opposite to that of a regular emergency stop button? … Read more

The Importance of Choosing Normally Open and Normally Closed Contacts in PLCs

The Importance of Choosing Normally Open and Normally Closed Contacts in PLCs

In low-voltage control circuits, stop and emergency stop buttons are generally designed with normally closed contacts. However, in PLC control, many colleagues dismiss this, thinking, “It doesn’t matter whether we use normally open or normally closed contacts; both can achieve the same result.” This mindset often leads to significant losses. For example, in a simple … Read more

Why Emergency Stop in PLC Programming Should Be Wired Normally Open

Why Emergency Stop in PLC Programming Should Be Wired Normally Open

In PLC programming, the physical contact of the stop button is generally connected as normally closed, while in the program, it is written as normally open. This way, the stop button only serves as a signal in this equipment.Why is the emergency stop in PLC programming opposite to that of a regular stop button? In … Read more

Why Should Emergency Stop in PLC Programming Be Wired as Normally Open?

Why Should Emergency Stop in PLC Programming Be Wired as Normally Open?

In PLC programming, the physical contact of the stop button is generally connected as normally closed, while in the program, it is written as normally open. This type of stop button only serves as a signal in this equipment.Why is the emergency stop in PLC programming opposite to that of a regular emergency stop button? … Read more

Why Emergency Stop in PLC Programming Should Be Wired Normally Open

Why Emergency Stop in PLC Programming Should Be Wired Normally Open

In PLC programming, the physical contact of the stop button is generally connected as normally closed, while in the program, it is written as normally open. This type of stop button only serves as a signal in this equipment.Why is the emergency stop in PLC programming opposite to that of a regular emergency stop button? … Read more