Instruction List - UIrobot UIM2842 User Manual

Miniature Integrated Stepper Motor Controller(
The semicolon at the end of the instruction set has no letter or number before it. That is
called Null Instruction. The only purpose of a Null Instruction is to tell the UIM2842 to
feedback all the inquired parameters of the basic motion control. (i.e. Enable/disable,
Current, Micro-stepping, Auto current reduction, Direction, Speed, and Displacement)
Actually, user can simply send the null instruction";" alone to check the status of the above
parameters. If there is no null instruction ";" after the "}" in the above example, there will be
no ACK message at all.

2.4 Instruction List

The following table shows the instructions mentioned in this chapter, the details of those
instructions are described at the end of the document.
Instruction
;
UI Robot Technology Co. Ltd.
Description
Query desired motor parameters
M4220170607EN
)
Closed-loop
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