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LEGEND-MC User’s Manual MR (Motion Reverse) [Trippoint] 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 x, y, z, w or MRX=x or MR a, b, c, d, e, f, g, h where x, y z, w, or a, b, c, d, e, f, g, h are signed integers USAGE: While Moving Yes Minimum Value -2147483648 In a Program Yes Maximum Value 2147483647 Command Line Yes Default Value --- Can be Interrogated No Default Format --- Used as an Operand No Distributed Control Specific Axis RELATED COMMANDS: "AR" Trippoint for after Relative Distance "MF" Forward motion to position "AP" Trippoint After absolute position #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 EXAMPLES: NOTE: MR command accuracy is the number of counts that occur in 2 msec. Multiply speed by 2 msec to obtain maximum error. MR tests for absolute position. The MR command can also be used when the specified motor is driven externally. 167