Omron SCARA YRCX Series, Руководство по программированию, Страница: 45 / 506

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System Variables 3-13
9.8 Serial input variable
This variable is used to indicate the status of serial input signals.
Format 1
SIm(b,···,b)
Format 2
SI(mb,···,mb)
Values m : port number .................... 0 to 7, 10 to 17, 20 to 27
b : bit definition .................... 0 to 7
• If the bit definition is omitted in Format 1, bits 0 to 7 are all selected.
Examples: A%=SI1()
→Input status of ports SI(17) to SI(10)
is assigned to variable A%.
A%=SI5(7,4,0)
→Input status of SI(57), SI(54) and
SI(50) is assigned to variable A%.
(If all above signals are 1(ON), then A%=7.)
A%=SI(27,15,10)
→Input status of SI(27), SI(15) and
SI(10) is assigned to variable A%.
(If all above signals except SI(10) are 1^
(ON), then A%=6.)
WAIT SI(21)=1
→Waits until SI(21) sets to 1 (ON).
• When specifying multiple bits, specify them from left to right in descending order (high to law).
• A "0" is input if a serial port does not actually exist.
MEMO