HP 61010A Owner's Manual page 28

Binary = 1110000000000000
Octal = 160000
Hexadecimal = E000
LOGIC SENSE • formats the incoming data as either
positive true logic, or a negative true logic (input bits
inverted). When you point to and select this field, it
toggles between POSITIVE and NEGATIVE. The field
always indicates which logic sense is currently active. The
polarity of the input control signals are unaffected by
action of this field.
In the previous example the logic sense was assumed to
be positive. Lets assume that the input bits are set the
same as before, only this time the logic sense is negative.
Depending on the base, the input data is displayed as
follows:
Decimal (2's compl) = 8191
Decimal (unsigned) = 8191
Binary = 0001111111111111
Octal = 017777
Hexadecimal = 1FFF
LENGTH - contains 16 choices (13 are hidden) that allow
you to specify the size of the input data segment (number
of input bits) that will be read by the Digital Input. Thus,
the length can vary in size from 1 bit to 16 bits. Use the
arrows at the bottom of the field to move the desired
choice into the center location. When a selection appears
in the center location, it automatically becomes active. To
prevent errors, always specify the length of the field
before you specify the start bit. If errors do occur, a
message in the Status Window will identify the type of
error that has occurred.
START • contains up to 16 chokes (13 are hidden) that let
you specify the starting location or LSB of your input data
segment. Because this field works in conjunction with the
length field, your start choices are limited by the length of
your field. If you specify a length of one bit, you have a
3-4
Manual Instrument Control