Manual

Detailed Descriptions of ACL Commands 3-5
AD Abort Download Sequence Execution
This command aborts any currently-executing Download Sequence(s), leaving the machine
in the idle state. The System forgets any partially-executed Download Sequences which
may have invoked other sequences via the XD, XI, XU, or XW commands, or may have been
interrupted via the front panel or the Digital Inputs. Any remaining repeat counts are
ignored.
Normally, Download Sequences do not stop executing until the main sequence is finished.
(The main sequence is the one invoked from the front panel, the Digital Inputs, or the host
via a "live" XD or XI command.) The AD command is a way to preempt this normal termi-
nation.
The AD command only works if it is part of a Download Sequence. If the host computer
were to send AD while a Download Sequence was executing, nothing would happen because
the Automove System does not process incoming ACL commands until after the Download
Sequence has finished executing. After this the AD command would execute but would
have no effect.
Note, however, that the host can abort an executing Download Sequence immediately by
sending the
ESC.!5 command; see Chapter 6.
In most applications the AD command should be preceded by a CP if the application is
using patterns, and by an EC if the application is using Continuous Path.
AM [<mode>] Arrow Mode
This command changes the behavior of the four Arrow buttons and other buttons on the
Automove front panel. If the optional joystick is connected its behavior is affected also.
The <mode> parameter is optional. If it is omitted or is zero then the Arrows control the
positions of the X and Y motors. If a nonzero value is specified for <mode> then the Up
and Down Arrow buttons control the Z axis motor. Other buttons are affected, too; see "Z
AXIS" in Chapter 4.
You can also change the Z Arrows mode manually, by pressing the Z AXIS button. The
lights in the Up and Down Arrow buttons will illuminate while the machine is in Z Arrow
mode. The host computer can determine the current status (Z vs. XY) via the OS command.
The speed and direction of Z motor travel are affected by personality parameters 40 through
42; see Chapter 7. Also, the default <mode>, zero, can itself be changed via the PE
command so that the System "wakes up" with the desired Arrow mode at power up.
The Z axis full/half step mode is as specified by the CZ ("Configure Z Axis") command.
For example, when an Arrow button is pressed briefly to cause a single motor step, the step
will be either a full step or half step according to the most recent CZ command.