You did not say which Task Event "Action" produced that error message --
ResetBit, Setbit, ToggleBit, or WriteByte ...
If using ResetBit, Setbit, or ToggleBit, the value used for output must
be 0, 1, 2, 3, 4, 5, 6, or 7 -- i.e., it must indicate which bit of an
8-bit value receives the action (by tradition, bit numbers are counted
starting at the right (lease significant) bit with 0 -- this is all
elementary computer knowledge). This will almost certainly not work
well with Source set to "Timestamp", so I would set Source to "(custom)"
and then put the appropriate value into Custom.
If using WriteByte, the value supplied by Source or Custom must be an
integer from -32768 to 32767 -- these are the limits of any 8-bit value
(yet more elementary computer knowledge). I would use hexadecimal
values here (again, elementary computer knowledge) -- in that case the
values would range from &h0000 to &hFFFF.
For more (and somewhat archaic) technical details about the parallel
port, see also the documentation that PST provides at
support.pstnet.com/hc/en-us/articles/229359667-INFO-General-Parallel-Port-Information-17216-
.
-- David McFarlane