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DMC-1700/1800 Chapter 7 Application Programming • 137
#SQUARE
#X1
#BEGIN1
Invalid labels
#1Square
#123
A Simple Example Program:
#START Beginning of the Program
PR 10000,20000 Specify relative distances on X and Y axes
BG XY Begin Motion
AM Wait for motion complete
WT 2000 Wait 2 sec
JP #START Jump to label START
EN End of Program
The above program moves X and Y 10000 and 20000 units. After the motion is complete, the motors rest for 2
seconds. The cycle repeats indefinitely until the stop command is issued.
Special Labels
The DMC-1700 and DMC-1800 have some special labels, which are used to define input interrupt subroutines, limit
switch subroutines, error handling subroutines, and command error subroutines. See section on
Auto-Start Routine
The DMC-1700/1800 has a special label for automatic program execution. A program which has been saved into
the controller’s non-volatile memory can be automatically executed upon power up or reset by beginning the
program with the label #AUTO. The program must be saved into non-volatile memory using the command, BP.
Automatic Subroutines for Monitoring Conditions on page
149.
#ININT Label for Input Interrupt subroutine
#LIMSWI Label for Limit Switch subroutine
#POSERR Label for excess Position Error subroutine
#MCTIME Label for timeout on Motion Complete trip point
#CMDERR Label for incorrect command subroutine
Commenting Programs
Using the command, NO or Apostrophe (‘)
The DMC-1700/1800 provides a command, NO, for commenting programs or single apostrophe. This command
allows the user to include up to 78 characters on a single line after the NO command and can be used to include
comments from the programmer as in the following example:
#PATH
‘ 2-D CIRCULAR PATH
VMXY
‘ VECTOR MOTION ON X AND Y
VS 10000
‘ VECTOR SPEED IS 10000
VP -4000,0