Absolute encoder provides a unique encoding digital value for each axis position. Especially in positioning control applications, absolute encoder reduces the computational tasks of electronic receiving devices, thus eliminating complex and expensive input devices. Moreover, when the machine closes the power supply or power failure and then turns on the power supply, the current position value can be used without returning to the position reference point.
The parallel absolute value encoder transmits the position to the estimated electronic device to transmit in parallel through several cables.
Serial absolute value encoder, the output data can be transmitted by standard interface and protocol, while the point-to-point connection to achieve serial data transmission. The use of Fieldbus systems is increasing today.