40 • Chapter 5 Command Basics DMC-1500
Additional Interrogation Methods.
Most commands can be interrogated by using a question mark. For information specific to a particular
axis, type the command followed by a ? for each axis requested.
PR ?,?,?,? Request X,Y,Z,W values
PR ,? Request Y value only
The controller can also be interrogated with operands.
Operands
Most DMC-1500 commands have corresponding operands that can be used for interrogation.
Operands must be used inside of valid DMC expressions. For example, to display the value of an
operand, the user could use the command:
MG ‘operand’ where 'operand' is a valid DMC operand
All of the command operands begin with the underscore character (_). For example, the value of the
current position on the X axis can be assigned to the variable, V, with the command:
V=_TPX
The Command Reference denotes all commands which have an equivalent operand as "Used as an
Operand". For further information, see description of operands in Chapter 7.
Command Summary
For a complete command summary, see Command Reference manual.