AMS DCB-274 manual Interrupt Commands, Command Cycle Examples

ADVANCED MICRO SYSTEMS, INC. SERIAL INTERFACE

Interrupt Commands

Interrupt commands are single character commands that will interrupt the operation in process as follows:

Abort

Any action command may be terminated using the ESCape character.

Process	Resulting Action
Command line input	Clear input buffer.
Program mode	Exit without inserting “END”.
Action command	Terminate all motion (HARD STOP).
Program execution	Terminate execution, Hard Stop.

If more then one process is active then ALL are aborted.

Abort is Global – all axis halt.

Soft Stop “@”

The Soft Stop “@” can be either a command (Immediate mode), or a single character interrupt (Program mode). The Soft Stop operates only when motion resulting from action commands or instructions is taking place.

Soft Stop Interrupt

After velocity deceleration, the process is terminated.

Process	Resulting Action
Pending period	Decelerate and cancel pending instruction.
Program execute	Decelerate then terminate execution.

During PENDING PERIODS that are a result of multiple Constant Velocity commands (inter-speed ramping), deceleration will be delayed until the previous ramp -to-speed has been completed.

Jog Speeds, Homing

Jog input and home speed is a special case of the constant velocity command. Inter-speed ramping is used if the programmed jog speeds are above the initial velocity. Homing does NOT employ a deceleration ramp on reaching the home sensor.

Note: In any mode, jogging and command reception are mutually exclusive. That is, a command canNOT be loaded while jogging and jogging canNOT be performed until the last command is complete. A command starts with the reception of the first command character.

Command Cycle Examples

Index Cycle Resulting From +, -, R Commands

2 8