Mitsubishi PLC source type and leakage type difference
Published:2023-02-13 16:55:00
Mitsubishi PLC split source type (PNP) or leak type (NPN), the following is their difference
1: Leaky logic: When current flows out of the signal input terminal, the signal changes to ON, indicating leaky logic. The current flows in from the terminal, with NPN transistor output characteristics.
2: source-type logic: When current flows into the signal input terminal, the signal changes to ON, indicating source-type logic. The current flows from the terminal, with PNP transistor output characteristics.
Take positive power supply as an example:
When the signal terminal declares "ON" signal, if the voltage at this time is low (0V), it is leaky logic.
When the signal terminal declares "ON" signal, if the voltage at this time is high (PLC, inverter, etc., generally 24V), it is the source logic.
A source input is high, meaning current flows in from the input point, and a drain input is low, meaning current flows out from the input point.
-
202302-21Omron CP1 series PLC interrupt classification
1. Direct I/O interrupt is a change in the interrupt input from the built-in input unit on the CPU rack (0→1; 1→0).2, count interrupt, PLC CPU unit built-in input pulse count, count reach set value ···
-
202303-24How does the WEINVIEW touch screen connect with the Omron NJ controller?
First, Omron NJ controller programming1. Create the structure data type required by the project. For example, the Boolean switch quantity used in this example is combined to establish a structure data···
-
202212-29Failure analysis of WEINVIEW touch screen can not be turned on
1. The power cable is incorrectly connectedThis may seem obvious, but make sure the power cord is connected to the back of the touch screen and plugged into a power outlet. If it looks connected corre···
-
202212-30ABB breaker failure and treatment
Judgment and handling of "reject" failureThe occurrence of "rejection" situation, basically in the closing operation and reclosing process. This kind of failure is very harmful. Fo···
-
202302-09Step of MCGS screen upload program
1. Install the MCGS configuration software on the computer first, and then find a power supply to power the touch screen. Connect the screen to the computer with the communication cable, and you can o···
+86 18621383628
+86 13811814778
Building 26, Liyuan Community, Chaoyang District, Beijing, China