Delta Electronics AH500, Руководство пользователя

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C h a p t e r 5 A p p l i e d I n s t r u c t i o n s
5 - 2 7
API Instruction code Operand Function
10 D CMP P S
1
, S
2
, D Comparing values
Device X Y M S K 16# F KnM KnS D W T C V Z
S
1
         
S
2
         
D
  
Pulse instruction 16-bit instruction (7 steps) 32-bit instruction (9 steps)
  
E xp la nat io n

The instruction is used to compare the value in S
1
with that in S
2
. The
comparison result is stored in D .

S
1
: Comparison value 1; S
2
: Comparison value 2; D : Comparison result

The operand D occupies three consecutive devices.
E xa mple

When X1.0 is ON, the instruction CMP is executed, and Y0.0, Y0.1, or
Y0.2 is ON. When X1.0 is OFF, the execution of the instruction CMP
stops, and the states of Y0.0, Y0.1, and Y0.2 remain unchanged
.

If the operand D is Y0.0, Y0.0, Y0.1, and Y0.2 will be occupied
automatically.

If users want to get the result that K10
≧
the value in D10, they have to
connect Y0.0 and Y0.1 in series. If users want to get the result that
K10
≦
the value in D10, they have to connect Y0.1 and Y0.2 in series. If
users want to get the result that K10
≠
the value in D10, they have to
connect Y0.0, Y0.1, and Y0.2 in series.
X1.0
C MP
K1 0 D 10 Y0 .0
Y0.0
Y0.1
Y0.2
If K1 0>th e va lu e i n D 10 , Y0 .0 w i ll b e ON .
If K1 0=th e va lu e i n D 10 , Y0 .1 w i ll b e ON .
If K1 0<th e va lu e i n D 10 , Y0 .2 w i ll b e ON .