Galil DMC-1800 High Speed Position Capture The Latch Function, Command Summary - Homing Operation

Example: Find Edge

#EDGE	Label
AC 2000000	Acceleration rate
DC 2000000	Deceleration rate
SP 8000	Speed
FE	Find edge command
BG	Begin motion
AM	After complete
MG “FOUND HOME”	Send message
DP 0	Define position as 0
EN	End

Command Summary - Homing Operation

command

FE XYZW

FI XYZW

HM XYZW

SC XYZW

TS XYZW

description

Find Edge Routine. This routine monitors the Home Input Find Index Routine - This routine monitors the Index Input

Home Routine - This routine combines FE and FI as Described Above Stop Code

Tell Status of Switches and Inputs

Operand Summary - Homing Operation

operand

_HMx

_SCx

_TSx

Description

Contains the value of the state of the Home Input Contains stop code

Contains status of switches and inputs

High Speed Position Capture (The Latch Function)

Often it is desirable to capture the position precisely for registration applications. The DMC- 1700/1800 provides a position latch feature. This feature allows the position of the main or auxiliary encoders of X,Y,Z or W to be captured within 25 microseconds of an external low input signal. The general inputs 1 through 4 and 9 thru 12 correspond to each axis.

	1 through 4:	9 through 12
IN1	X-axis latch	IN9	E-axis latch
IN2	Y-axis latch	IN10	F-axis latch
IN3	Z-axis latch	IN11	G-axis latch

132 • Chapter 6 Programming Motion DMC-1700/1800