Newport MM4006, Руководство пользователя

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MM4006
CB C l e a r I/O outputs bits
Usage • IMM • PGM • MI13
Syntax x x C B n n
Parameters
Description x x [ i n t ] — I / O bit number.
nn [float] — I / O bit mask.
Range x x — 0 to 8.
nn — 0 to 255.
Units x x — None.
nn — None.
Defaults x x M i s s i n g : 0 .
Out of range: E r r o r E.
Floating point: E r r o r A.
nn M i s s i n g : 255.
Out of range: E r r o r C.
Floating point: Decimal part truncated.
Description T h i s command clears one to all output bits of the I/O port. If xx is specified
between 1 and 8, the nn mask must be missing and then the selected bit
will be cleared.
If xx is missing or set to 0 and
nn is between 1 and 255, the controller will
clear all bits corresponding to the mask. For example, if nn is 140, the
equivalent binary mask is 10001100 which means that I/O output bits num-
ber 3, 4 and 8 will be cleared (remember that I/O bits are numbered from 1
to 8).
If xx is missing or set to 0 and
nn is not specified, the controller clears all 8
bits. This is equivalent to setting xx to 0 and nn to 255.
NOTE
Remember that having an open collector configuration, a clear bit means
a non-conductive transistor. Using a pull-up resistor, a clear output bit
will measure a logic high, thus making the output port be the reverse
logic type.
NOTE
For the hardware definition o f the I / O port, please see Appendix B,
Connector Pinouts, GPIO Connector.
Returns N o n e .
Errors A — U n k n o w n message code.
E — I n c o r r e c t I/O channel number.
Rel. Commands R O — R e a d I/O output.
SB - S e t I/O output bits.
SO - S e t I/O output port byte.
TG — To g g l e I/O output bits.
Example CB224 I S e t I/O output port bits number 6, 7 and 8 low.
c v
N e w p o r t . 3 . 3 5
EDI10181En1020 — 03/03