I/O System for Sensor and Actuator

At present, in the process of digital and intelligent development, enterprises need various measurement Sensors and actuators with more efficient and flexible performance. In the future, Sensor and Actuator need to be able to operate faster and remotely in a short period of time to improve work efficiency. In order to meet the needs of automated factories, IO-Link came into being. "IO-Link is known as the last step towards sensors and actuators, and is known as the last meter technology of automation". IO-Link is a point-to-point serial communication protocol and is a low-cost communication interface technology for integrating traditional or smart sensors and actuators in automation systems. "With the "IO-Link" Communication interface, the field Sensor can better adapt to the needs of easy and quick modification of parameter settings, and you will have great flexibility in the production process."

IO-Link follows the latest standard of IEC 61131-9. IO-Link is a point-to-point communication system, not a fieldbus! IO-Link supports COM 1 = 4.8 kbaud, COM 2 = 38.4 kbaud, COM 3 = 230.4 kbaud. The longest transmission distance of IO-Link is 20m.

IO-Link system consists of 3 parts: ①IO-Link master module (IO-Link Master) ②IO-Link device/slave module (IO-Link Devices/Hub) ③IO-Link cables (IO-Link Cables) Among them, IO-Link devices include on-site sensors and actuators, which have their own IO-Link interfaces; if the on-site sensors and actuators do not have IO-Link functions, IO-Link Hub can also be installed on these sensors and actuators to facilitate They are IO-Link capable. The IO-Link cable is a standard 3- or 4-conductor cable. The IO-Link master module has one or several IO-Link interfaces, and each IO-Link device/slave module is connected to an IO-Link interface through a cable.

IO-Link main advantages:

①Plug and play, standardized cables, significantly reducing interface types

②Continuous communication between sensor/actuator and controller

③Support online information diagnosis, shorten debugging time, and support dynamic parameter allocation

④Support integrated device identification

⑤Small size, realizing the miniaturization of smart sensors and actuators

⑥Intelligent communication, reducing tedious work and improving efficiency