1. Industrial Automation :

In industrial automation systems, M8 connectors are used to connect sensors and actuators to programmable controllers (PLCs) or industrial control systems.
Example : A proximity sensor used to detect the presence of objects can be connected to a controller via an M8 connector to provide information about the status of the machine.

2. Robotics :

Industrial robots often use M8 connectors to connect position sensors, actuators, and other peripherals to their control system.
Example : A force sensor attached to a robot's end-effector can be connected to the main controller using an M8 connector to measure the force applied during a handling task.

3. Manufacturing Equipment :

In manufacturing equipment, such as CNC (Computer Numerical Control) machine tools, M8 connectors are used to connect process sensors, limit switches, and actuators.
Example : A temperature sensor used to monitor the process temperature in a manufacturing machine can be connected to the control system via an M8 connector.

4. Access Control :

Access control systems often use M8 connectors to connect card readers, biometric readers, and other control devices to central control units.
Example : An access card reader mounted outside a building can be connected to a access controller inside the building via an M8 connector to allow identification of authorized users.

5. Monitoring Equipment :

In industrial monitoring systems, M8 connectors are used to connect cameras, vision sensors, and control devices to monitoring and control systems.
Example : A vision camera used to inspect parts in a production line can be connected to a central monitoring system via an M8 connector to transmit images and inspection data.

For M8 connectors, there are common conventions for the 3-, 4-, 6-, and 8-pin versions :

3-pin M8 connectors :

These connectors are commonly used in sensor and actuator switching applications in industrial settings.
The pins are usually wired to support the power supply and control signals.

4-pin M8 connectors :

They are also used in industrial applications for sensors, actuators, and communication systems.
The pins can be wired to carry power supply, data signals, and control signals.

6-pin M8 connectors :

These connectors are often used in applications where additional functions are required, such as two-way communication or additional data transmission.
The pins can be wired to support power supply, data signals, control signals, and other application-specific functions.

8-pin M8 connectors :

Although less common, 8-pin M8 connectors offer greater flexibility for applications that require a greater number of functions or signals.
The pins can be wired to carry power supply, data signals, control signals, and other specialized functions.

The M8 connector pinout indicates the position of the pins, the amount of pins, the pin arrangement, the shape of the insulator, the M8 connector coding tells us the connector coding types, the M8 connector color code indicates the color of the wires connected to the pins, the M8 connector wiring diagram. shows the internal wiring diagram of the two end M8 connectors.
M8 connector coding types : 3-pin, 4-pin, 6-pin, 8-pin, 5-pin B-code, and 4-pin D-code.

The 8-pin M8 connector has the most pins in all the coding types of the M8 connector, the following drawing shows the pinout and pin position for the 8-pin M8 connector.