FX Series Programmable Controlers Applied Instructions 5
5-18
5.2.1 CMP (FNC 10)
Operation:
The data of S
1 is compared to the data of S2. The
result is indicated by 3 bit devices specified from
the head address entered as D. The bit devices
indicate:
S
2 is less than S1 - bit device D is ON
S
2 is equal to S1 - bit device D+1 is ON
S
2 is greater than S1 - bit device D+2 is ON
Mnemonic Function
Operands
Program steps
S
1
S2 D
CMP
FNC 10
(Compare)
Compares two
data values -
resultsof<,=and
> are given.
K, H,
KnX, KnY, KnM, KnS,
T, C, D, V, Z
Y, M, S
Note:
3 consecutive
devices are
used.
CMP, CMPP:
7steps
DCMP,
DCMPP:
13 steps
FX
1S
FX1N FX2N
FX2NC
PULSE-P
16 BIT OPERATION
32 BIT OPERATION
X0
C 20 M 0
[ S2 ] [ D ]
[ S1 ]
K 100CMP
M0
M1
M2
C20>K100,M0=ON
C20=K100,M1=ON
C20>K100,M2=ON
Note: The destination (D) device statuses will be kept even if the CMP instruction is
deactivated. Full algebraic comparisons are used, i.e. -10 is smaller than +2 etc.
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