Converting To User Units; Programmable Hardware I/O; Digital Outputs - Galil Motion Control DMC-1000 User Manual

Table of Contents

Instruction

V1=10

V1=

0000000010.0000

V1={F4.2}

0010.00

V1={$4.2}

$000A.00

V1="ALPHA"

V1={S4}

ALPH

The local format is also used with the MG command.

Variables and arithmetic operations make it easy to input data in desired user units such as inches or

RPM.

The DMC-1000 position parameters such as PR, PA and VP have units of quadrature counts. Speed

parameters such as SP, JG and VS have units of counts/sec. Acceleration parameters such as AC, DC,

VA and VD have units of counts/sec 2 . The controller interprets time in milliseconds.

All input parameters must be converted into these units. For example, an operator can be prompted to

input a number in revolutions. A program could be used such that the input number is converted into

counts by multiplying it by the number of counts/revolution.

Instruction

#RUN

IN "ENTER # OF REVOLUTIONS",N1

PR N1*2000

IN "ENTER SPEED IN RPM",S1

SP S1*2000/60

IN "ENTER ACCEL IN RAD/SEC2",A1

AC A1*2000/(2*3.14)

Programmable Hardware I/O

The DMC-1000 has an 8-bit uncommitted output port for controlling external events. The DMC-1080

has an additional eight output bits available at JD5 pins 10-17. Each bit on the output port may be set

and cleared with the software instructions SB (Set Bit) and CB(Clear Bit), or OB (define output bit).

114 • Chapter 7 Application Programming

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Interpretation

Assign V1

Return V1

Response from controller with default format

Specify local format

Response from controller with new format

Specify hex format

Response from controller in hexadecimal format

Assign string "ALPHA" to V1

Specify string format first 4 characters

Response from controller in string format