Encoder data interface and protocol
Edit： Click： Times Date：2025-5-23
Absolute encoder
1. RS232 (MODBUS RTU protocol)
2. RS485 (MODBUS RTU protocol)
3. TTL UART (MODBUS RTU protocol)
4 SPI
Incremental encoder
1. ABZ signal: AB is an orthogonal pulse with a phase difference of 90 degrees, used to record the number of steps and determine the direction of rotation. Z is a zero pulse that occurs once per revolution.
2. SDI signal: S is the pulse step signal, D is the forward and reverse signal, and I is the zero pulse that occurs once per revolution.
3. Analog voltage: Convert signal data to a specified voltage output based on resolution, such as a resolution of 256 and a voltage of 5V. This means dividing 5V and 360 degrees into 256 parts, with each degree corresponding to a certain voltage value.
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