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DMC-3425 Chapter 7 Application Programming• 135
RC1 Start recording now, at rate of 2 msec
BG AB Begin motion
#A;JP #A,RC=1 Loop until done
MG "DONE" Print message
EN End program
#PLAY Play back
N=0 Initial Counter
JP# DONE,N>300 Exit if done
N= Print Counter
A POS[N]= Print A position
B POS[N]= Print B position
AERR[N]= Print A error
BERR[N]= Print B error
N=N+1 Increment Counter
#DONE Done
EN End Program
Deallocating Array Space
Array space may be deallocated using the DA command followed by the array name. DA*[0]
deallocates all the arrays.
Outputting Numbers and Strings
Numerical and string data can be output from the controller using several methods. The message
command, MG, can output string and numerical data. Also, the controller can be commanded to return
the values of variables and arrays, as well as other information using the interrogation commands (the
interrogation commands are described in chapter 5).
Sending Messages
Messages may be sent to the bus using the message command, MG. This command sends specified
text and numerical or string data from variables or arrays to the screen.
Text strings are specified in quotes and variable or array data is designated by the name of the variable
or array. For example:
MG "The Final Value is", RESULT
In addition to variables, functions and commands, responses can be used in the message command.
For example:
MG "Analog input is", @AN[1]
MG "The Position of A is", _TPA
Specifying the Port for Messages:
By default, messages will be sent through the port from which the data was requested. However, the
port can be specified with the specifier, {P1} for the main serial port or {Ea} for the Ethernet handle.
‘a’ will be the handle letter, A through H.
MG {P1} "Hello World" Sends message to Serial