If the numbers are not acceptable because they are outside the allowable range (e.g. trying to set time
for 26 o'clock), the PMS II will print the maximum or minimum allowable value on the screen next to
the number entered. That entry will be ignored. You can try again by pressing the key for "EDIT THIS
ONE" and starting over.
When entering numbers, mistakes can be corrected before the ENTER key is pressed, by using the
RUBOUT key. The RUBOUT key will cause the display to backspace and erase the last digit
displayed. Successively pressing the RUBOUT key will erase the next digit, and so on until no digits
The key marked EXIT provides a method for immediately leaving the Edit mode, at any time. On
pressing the EXIT key, the EDIT key will go out, and the system will resume the monitoring display.
The EXIT key should not be pressed when the cursor is extended and numbers are being entered,
since those numbers will not be accepted by the system. The ENTER key must be pressed before
those numbers are accepted.
Section 3 - Page 7