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DMC-2X00 Chapter 5 Command Basics y 21
Interrogating the Controller
Interrogation Commands
The DMC-2x00 has a set of commands that directly interrogate the controller. When the command is
entered, the requested data is returned in decimal format on the next line followed by a carriage return
and line feed. The format of the returned data can be changed using the Position Format (PF), Variable
Format (VF) and Leading Zeros (LZ) command. See Chapter 7 and the Command Reference.
Summary of Interrogation Commands
RP Re
p
ort Command Position
RL Report Latch
∧
R
∧
V
Firmware Revision Information
SC Stop Code
TB Tell Status
TC Tell Error Code
TD Tell Dual Encoder
TE Tell Error
TI Tell Input
TP Tell Position
TR Trace
TS Tell Switches
TT Tell Torque
TV Tell Velocity
For example, the following example illustrates how to display the current position of the X axis:
TP A <return> Tell position A
0000000000 Controllers Response
TP AB <return> Tell position A and B
0000000000,0000000000 Controllers Response
Interrogating Current Commanded Values.
Most commands can be interrogated by using a question mark (?) as the axis specifier. Type the
command followed by a ? for each axis requested.
PR ?,?,?,? Request A,B,C,D values
PR ,? Request B value only
The controller can also be interrogated with operands.
Operands
Most DMC-2x00 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