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81
Standard Mode
Section 4-6
4.6.1.7
‘Binary Number’ Representation
The binary format permits the representation of single bits, bytes, words or Lwords.
The value for the ‘length’ entered in the variable definition corresponds to the num-
ber of bits to be represented. Counting always begins with bit 0. The number of
blanks indicates how many gaps (spaces) are inserted between each bit. Output is
always in the horizontal position. The direction of the positional significance can be
set in the variable definition.
Bit 3
Bit 2
Bit 1
Bit 0
0
1
0
0
Direction = 76543210
Bit 0
Bit 1
Bit 2
Bit 3
0
0
1
0
Direction = 01234567
0100
Blanks = 0
0 1 0 0
Blanks = 1
0
1
0
0
Blanks = 2
4.6.1.8
Bar Representation
Variables in I/O masks can be represented as bars. They can be programmed to be
either horizontal or vertical. The bars can start at a reference point (e.g. in the
center of the display) and extend in both the positive and the negative direction.
The range of values of the bars can be defined by specifying the upper and lower
limit (corner values). The bars are represented on the terminal with the aid of four
different graphical objects, the simplest of which is a fill pattern. Separate fill pat-
terns can be specified for:
-
the empty part of the bar
-
the filled-in bar
-
the ‘lower limit exceeded’ bar
-
the ‘upper limit exceeded’ bar
The programming software includes seven default fill patterns for representing
bars on the operating terminal. The other, above-mentioned graphical objects can
also be used to design your own fill patterns and shapes.
Fig.5: Different forms of bar representation
Содержание NT15S
Страница 1: ...Cat No V056 E1 1 Programmable Terminal NT4S NT15S NT18S OPERATION MANUAL ...
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Страница 3: ...iii NT4S NT15S NT18S Programmable Terminal Operation Manual Produced March 1999 ...
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Страница 26: ...12 The Terminals of the NT Series Section 1 2 1 2 4 1 2 NT4S SF122B E 1 2 4 1 3 NT4S SF123B E ...
Страница 27: ...13 The Terminals of the NT Series Section 1 2 1 2 4 1 4 NT15S SF121B E 1 2 4 1 5 NT18S SF121B E ...
Страница 37: ...23 The Terminals of the NT Series Section 1 4 1 4 1 3 NT4S SF123B E 1 4 1 4 NT15S SF121B E ...
Страница 54: ...40 The Terminals of the NT Series Section 1 7 1 7 6 3 ASCII Character Set Table ...
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Страница 232: ...Authorized Distributor Cat No V056 E1 1 Note Specifications subject to change without notice Printed in the Netherlands ...