Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set User Manual
Page 68
Chapter 2
Operating the Control
2-48
Clearing/Resetting a Field
To clear/reset a field to zero:
1.
Press the
{ED PRT INFO}
softkey, provided that you have
supervisor-level access.
2.
Press the up and down cursor keys to move to the field you want to
clear/reset.
3.
Enter a Y or a numeric value at the prompt for this field.
4.
Press
[TRANSMIT]
to accept the change.
Press the exit softkey {
↑
} to return to the “Active Program” screen.
You can perform simple mathematical calculations when you are operating
or programming the control. These mathematical calculations are
processed by the calculator function of the control.
To use the calculator, line 2 of the screen must be blank. That is, no
prompt should be on the input line of the screen when an attempt is made
to do calculations (this completely disables any calculation operation when
in MDI mode). If you try to enter the calculator function while another
prompt is active, the control generates the error message “CANNOT
CALCULATE - PROMPT PRESENT.”
How to Use the Calculator Function
To use the calculator function:
1.
Press the
[CALC]
key on the operator panel. The CALC: prompt
appears on the input line of the screen (line 2).
2.
At the CALC: prompt, enter a mathematical equation.
3.
Press the
[TRANSMIT]
key to evaluate the expression. The answer to
the expression appears on the input line.
How to Enter Values and Do Mathematical Operations
Mathematical expressions entered on the input line cannot exceed 25
characters. These expressions must contain the numeric or special
mathematical operation characters as described below. If you enter any
characters that are not numeric or operation characters, the error message
“INVALID CHARACTER” appears.
2.15
Calculator Function