Qecη Set Desired Quadrature Encoder's Position - UIrobot UIM2842 User Manual

UIM2842
QECη
30.
Format:
Description:
ACK:
Comment:
Note:
Page 90
Set desired quadrature encoder's position
QECη;
Set desired encoder position to η
η = - 2,000,000,000...-1, 0, 1 ... + 2,000,000,000。
AA [Controller ID] B8 [Q0] [Q1] [Q2] [Q3] [Q4] FF
B8 >> Message ID of desired encoder position;
[Q0] ~ [Q4] >> Received data 0 ~ 4
[Q0] ~ [Q4] is the converted value for desired encoder position. (32 bits)
(Figure 12-2)
The encoder counter records encoder pulses.
When the direction is positive, the counter increases; when the direction
is negative, the counter decreases. When ICFG.CW = 0, consider
clockwise as forword direction; when ICFG.CW = 1, consider
anticlockwise as forword direction.
Encoder counter can only be reset/cleared under following situations:
-- Commanded by user instruction ORG
-- User preset sensor ORG event happens
Please also be aware:
-- Power Failure Protection. Should a Power Failure situation happen, the
value of the encoder counter will be pushed into EEPROM and restored
when reboot next time. However, passive movement after power off
cannot be recorded.
-- For every slot, the encoder counter records 4 pulses. E.g., when
QEC=500, the encoder counter records 500*4 = 2000 pulses each turn.
M4220170607EN UI Robot Technology Co. Ltd.