Command Reference
5.1.3. Immediate Mode (Immediate Command Buffer
ICB)
In immediate mode, commands are placed in the ICB and executed
immediately. If a program is running or sequential commands are being
executed, an immediate command is fetched only when a delay in the
program or the sequential commands occurs. For example, when a MOVE_D
command is executed, it pauses the execution of subsequent commands.
During that pause, commands from the immediate command buffer can be
fetched and executed. An exception is the STOP_EX command, which is
executed immediately.
5.2. SCB and UPB Command Flushing
Motion command flushing from the SCB or UPB depends on the command
type:
5.2.1. Motion Commands With _D Suffix
These commands are flushed from the SCB or UPB only when the
corresponding movement is terminated according to the precision
requirement setting, that is, subsequent commands in the buffer are
executed immediately following movement termination of the _D command.
For example, setting an output will occur at the end of the movement.
5.2.2. Motion Commands Without _D Suffix
These commands are transferred to the MCB, and are flushed from SCB or
UPB immediately following execution. This enables you to enter a number of
motion commands. While the motion commands are being executed by the
driver, other commands can be executed sequentially.
XtraWare User Manual 89
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