Encoder terminology

1. Selection of forward rotation direction

　　Clockwise: Facing the end face of the encoder shaft, rotate clockwise, the encoder value will increase.

　　Counterclockwise: Facing the end face of the encoder shaft, rotate counterclockwise, the encoder value will increase.

　　2, cyclic, reciprocating measurement mode

　　Cyclic measurement mode: When the encoder shaft turns to the maximum value, the data will be output cyclically from 0.

　　The data output format is as follows:

　　 Angle measurement mode: 0--90--180--270--360 (0)--90-180--270-360......

　　 Length measurement mode: 0-1024-2048-4096 (0)--1024---2048----4096.....

　　Reciprocating measurement mode: When the encoder shaft rotates to the maximum or minimum value (4-20 mA), the data is fixed.

　　The data output format is as follows:

　　 Angle measurement mode: 0--90°--180°--270°--360°, continue to rotate the encoder shaft, the number does not change, keep it at 360).

　　 Length measurement mode: 0-1024-2048-4096 (continue to rotate the encoder shaft, the number does not change, keep at 4096).

　　3. The measurement value corresponding to each circle: the angle or length of the output when the encoder shaft rotates one circle (according to the angle or length measurement mode).

　　 Measurement value corresponding to 4, 4mA: Any position value can be set as the starting point of the encoder, and the current output corresponding to this value is 4mA.

　　 5, 20mA corresponding measurement value: any position value can be set as the end point (measurement stroke) of the encoder, and the current output corresponding to this value is 20mA.

　　6. ​​Minimum value during reciprocating measurement: In the multi-turn reciprocating measurement mode, the starting point of the encoder is regarded as the minimum value of reciprocating measurement.

　　7. Maximum value during reciprocating measurement: In the multi-turn reciprocating measurement mode, the end of the encoder is regarded as the maximum value of reciprocating measurement.

8. Encoder address: Use RS485 (free protocol/MODBUS RTU) and other bus signal encoders for multiple (≤9) encoders to connect to one RS485 interface as a slave station, you can set different addresses for the encoders respectively (E.g. 01,02,03...) 　　 9. Baud rate: Between the device and the encoder, the two parties agree on the same communication speed (such as the RS232 protocol), which is called the baud rate. The so-called baud rate means the number of discrete signal events transmitted per second, or the number of changes in signal level per second, in band (baud). In communication, both parties are required to have the same baud rate in order to correctly identify the transmitted data bits. Common baud rates can be set to 9600, 19200, 15200 and so on. The baud rate determines the speed of communication. The lower the baud rate, the slower the communication speed and the lower the error rate.

　　 10. When programming allows the line to be grounded, the communication handshake is allowed (not actively sent):

　　 "tick" is the passive transmission mode (the host computer sends a group of data, and the encoder responds to a group of data after inquiry)

　　"Do not tick" is the active sending mode (the encoder keeps sending data to the host computer)

okplazas.com has a wide range of encoder types, high resolution, support for customized high precision, high protection level, low temperature absolute encoder, support

RS485, RS422, RS232, SSI. CANOPEN, BISS and other interfaces. Please contact us for the purchase of encoder products.

Consulting Hotline: +86-13689242098