As the most widely used connector in industrial automation equipment, M12 connectors have several common internal structures and coding methods. Although these connectors have the same external dimensions, they are all 12 in diameter and 1mm in thread pitch, but the internal structure and There are many usages. The following is an introduction to the M12 plug code:
1. A-Coding is connected to DC, standard 24VDC and standard sensor signal interface, also used for CANopen, DeviceNet, CC-Link and other buses;
2. B-Coding is connected to DC signal, Profibus, Interbus and other field buses;
3. C-Coding is connected to AC, standard 24V/110V/230V AC, mostly used in the United States;
4. D-Coding is mostly used for Ethernet communication such as Profinet, Ethernet, CC-Link IE;
5. X-Coding for Gigebit Ethernet;
6. T-Coding for DC power supply (will eventually replace A-coded power parts);
The M12 connector is a circular connector with a 12mm locking thread and generally has an IP rating against ingress of liquids and solids. M12 connectors are ideal for sensors, actuators, and industrial Ethernet and fieldbus devices, mainly used in industrial automation and corrosive environments.
In addition to factory automation, M12 connectors and M12 cable assemblies can be used in measurement and control, communications, transportation, robotics, agriculture, and alternative energy. The correct choice of pin count depends on the specific application requirements - 3-pin and 4-pin models are used for sensor and power applications; 4-pin and 8-pin models are used for Ethernet and PROFINET; DeviceNet and CANbus generally use 4-pin and 5-pin M12 Connector; 12-pin models are commonly used in a variety of signaling applications.
