INFICON STC-2000A Thin Film Deposition Controller Operating Manual - Manual (Page 196)

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STC-2000A DEPOSITION CONTROLLER
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Nest Too deep The I/O rung contains an extra input or is missing a logical operator or output term.
Stack under flow Extra logical operator or output term or missing an input term
Bad node ID Using an unassigned ID # (Reserved)
Invalid Operation A non-valid function assigned to an ID#. Example: Trying to assign the output function
to an Remote Input ID by forming output token (O3) would give this error.
Out of I/O Memory I/O program too long to fit available memory
Typical error sequence example: two input tokens are created, ENT (enter) is pressed, the CHG (change)
screen appears with an error message on the last line. Press the OK key to acknowledge error message and
return to 1
st screen pictured below. Use editing facilities (eg. BAKSP, DEL, etc.) to make corrections.
SECTION 5.20 I/O SETUP Menu Summary
See chapter 3, section 3.22, Product Programming Summary for I/O Menu summary.
Positive And Negative
The other 2 input functions are for use with Edges. These are called pos and neg ( P and N), and
they become true only once following an Edge event occurrence. The duration of this true value is no
longer than 100 milliseconds, the interval of time between scans of the I/O program. If you test an event
within the STC-2000A, you must use a Positive function. This is because Events are Edges in nature. A
zero thickness event is an example of this. Remember that States are steady state conditions and can be
tested using either input, Positive, or Negative. The positive test of an input yields TRUE once on a change
from False to True. The negative does similarly on a True to False change.
RS-232 communications
connections
(3.11)
software (section 6 [include connections])
communications options
(3.12)
guided tour/ examples
programming examples (2.7 lead in...)
process programming (p.2-26)
film programming (p.2-27)
running example programs
manual power control (2.8)
appendix
hardware connections: roughly section 3 + pendent (2.8)
SECTION 5.XX page 196 of 292