142 ● MR DMC-1400 Series Command Reference
MR FUNCTION: Reverse Motion to Position
DESCRIPTION:
The MR command is a trippoint used to control the timing of events. This command will
hold up the execution of the following command until the specified motor moves
backward and crosses the position specified. The units of the command are in
quadrature counts. The MR command can also be used when the encoder is the master
and not under servo control.
ARGUMENTS: MR n where
n is a signed integer in the range -2147483648 to 2147483647 decimal
USAGE:
While Moving Yes Default Value ---
In a Program Yes Default Format ---
Command Line Yes
Can be Interrogated No
Used as an Operand No
Controller Usage ALL
RELATED COMMANDS:
AD Trippoint for after Relative Distance
MF Forward motion to position
AP Trippoint After absolute position
EXAMPLES:
#TEST Program B
DP0 Define zero
JG 1000 Jog mode (speed of 1000 counts/sec)
BG Begin move
MR -3000 After passing the position -3000
V1=_TP Assign current position to variable V1.
MG "Position is", V1 Print Message
ST Stop
EN End of Program
HINT: The accuracy of the MR command is the number of counts that occur in 2 msec. Multiply the
speed by 2 msec to obtain the maximum error. MR tests for absolute position. The MR command
can also be used when the specified motor is driven independently by an external device.