Uso De Matemáticas Estándar - Allen-Bradley SLC 500 Manual Del Usuario

6–10 Ejemplos de programación
Rung 2:0
N7:0 contains percentage of valve open.
less than 0, move the minimum value to the analog output
(6242 decimal = 4 mA at the analog output).
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| +LES–––––––––––––––+
|–+LESS THAN
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| |Source B
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| +––––––––––––––––––+
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Rung 2:1
N7:0 contains percentage of valve open.
greater than 100, move the maximum value to the analog output
(31208 decimal = 20 mA at the analog output).
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| +GRT–––––––––––––––+
|–+GREATER THAN
| |Source A
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| |Source B
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| +––––––––––––––––––+
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Publicación 1746 6.4ES - Enero de 1996
Uso de matemáticas estándar
Check for
below
range
+––––––––––––––––––––––––––––––––+––––( )–––––––––––––––+–|
N7:0|
0|
0|
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Check for
above
range
+––––––––––––––––––––––––––––––––+––––( )–––––––––––––––+–|
N7:0|
0|
100|
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If this value is
Below
range flag
B3
| 0
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| Minimum
| analog
| output
| value
| +MOV–––––––––––––––+ | |
+–+MOVE
|Source
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|Dest
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+––––––––––––––––––+
If this value is
Above
range flag
B3
| 1
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| Minimum
| analog
| output
| value
| +MOV–––––––––––––––+ | |
+–+MOVE
|Source
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|Dest
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+––––––––––––––––––+
La lógica de escalera continúa en la página siguiente.
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+–+ |
6242| |
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O:2.0| |
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+–+ |
31208| |
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O:2.0| |
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