Delta Electronics AH500, Руководство пользователя

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A H 5 0 0 M o t i o n C o n t r o l M o d u l e M a n u a l
5 - 7 6
API Instruction code Operand Function
110 D ECMP P S
1
, S
2
, D
Comparing binary
floating-point numbers
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 32-bit instruction (9 steps)

–

E xp la nat io n

The instruction is used to compare the binary floating-point value in S
1
with that in S
2
. The comparison result is stored in D .

S
1
: Binary floating-point number 1; S
2
: Binary floating-point number 2; D :
Comparison result (D occupies three consecutive devices.)

If S
1
is a floating-point number, the instruction will be used to compare
the floating-point number with the binary floating-point value in S
2
. If S
2
is
a floating-point number, the instruction will be used to compare the
binary floating-point value in
S
1
with the floating-point number.

F represents a floating-point number. There is a decimal point in a
floating-point number.
E xa mple

When X0.0 is ON, the instruction DECMP is executed, and M10, M11, or
M12 is ON. When X0.0 is OFF, the execution of the instruction DECMP
stops, and the states of M10, M11, and M12 remain unchanged
.

If the operand D is M10, M10, M11, and M12 will be occupied
automatically.

If users want to get the result that the value in (D1, D0)
≧
the value in
(D101, D100), they have to connect M10 and M11 in series. If users
want to get the result that the value in (D1, D0)
≦
the value in (D101,
D100), they have to connect M11 and M12 in series. If users want to get
the result that the value in (D1, D0)
≠
the value in (D101, D100), they
have to connect M10, M11, and M12 in series.

If users want to reset M10, M11, or M12, they can use the instruction
RST or ZRST.
X0.0
D ECMP D 0 D 100 M10
M10
M11
M12
If the value in ( D1, D0)> the value in (D 101, D 100) , M10 will be O N.
If the value in ( D1, D0)= the value in (D 101, D 100) , M11 will be O N.
If the value in ( D1, D0) <the value i n (D 101, D 100) , M12 w ill be O N.
A dditio nal

re mark
Please refer to section 5.3 for more information about performing
operations on floating-point numbers.