HEIDENHAIN ND 2100G - Manual (Page 135)

ND 2100G GAGE-CHEK 135
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p Parallel setup screen
The Parallel setup screen contains fields for enabling remote control
of the ND 2100G and specifying a parallel port data debounce interval.
Remote control
Remote control of the ND 2100G is limited to measurements
conducted under the supervision of an operator, and the ND 2100G
will accept commands only while displaying the Home or View
screens. To facilitate this remote control feature, a “receive ready”
flag is set on Dout (1), parallel port pin 2 when the Home or a View
screen is displayed. The remote computer or other controlling device
can send commands upon detecting the receive ready flag.
Commands sent to the ND 2100G when Dout (1) is logic level 0 will
be ignored.
To enable the remote control feature:
U Highlight the Remote Control field
U Press the YES soft key
U Press the ENTER key
I/O Debounce interval
The parallel port is used as a general purpose I/O port. The source of
logic levels presented to the parallel port pins can be solid state or hard
contact switching devices. When hard contact switching devices are
used, switching noise is often generated by contact bounce. The
effects of switching noise are eliminated by validating the input logic
levels for a short debounce time after the first level change occurs at
the port.
To specify I/O Debounce:
U Highlight the I/O Debounce field
U Enter the debounce time in milliseconds
U Press the FINISH key
Parallel setup screen.