Eaton ELC-PB, Programming Manual

Page: 464 / 728

3 . I n s t r u c t i o n S e t
M N 0 5 0 0 3 0 0 3 E F o r m o r e i n f o r m a t i o n v i s i t : w w w. e a t o n . c o m
3 - 2 9 5
API Mnemonic Operands Function
111 D EZCP P S
1
, S
2
, S, D Floating Point Zone Compare
Bit Devices Word devices Program Steps
Type
OP
X Y M S K H KnX KnY KnM KnS T C D E F
S
1
* * *
S
2
* * *
S * * *
D * * *
DEZCP, DEZCPP: 17
steps
ELC ELCB ELCM
PB PC/PA/PH PV PB PH/PA
32 16 P 32 16 P 32 16 P 32 16 P 32 16 P
Operands:
S
1
: Lower limit of zone comparison S
2
: Upper limit of zone comparison S : Comparison value
D : Comparison result, 3 consecutive bit addresses
Description:
1. The contents of S is compared to the data range of S
1
~ S
2
and the result (
＞
,
＝
,
＜
) is
displayed by three bit addresses beginning with D .
2. If the source operand S
1
or S
2
is a constant K or H, the integer value will automatically be
converted to binary floating point for the compare.
3. Operand S
1
should be smaller than operand S
2
, when S
1
＞
S
2
, S
1
will be used as upper and
lower limit for the comparison.
Program Example:
1. If M10 is entered for D , M10~M12 will automatically be used.
2. When X0= ON, one of M10~M12 = ON. When X0= OFF, DEZCP instruction is not executed,
M10~M12 will retain their previous state before X0= OFF.
3. Use RST or ZRST instruction to reset the result.
X0
DEZCP D0 D10 D20
M10
M11
M12
It is ON when (D1,D0)>(D21,D20)
It is ON when (D1,D0) (D21,D20) < (D11,D10)
<
It is ON when (D21 D20)>(D11,D10)
,
M10