DVP-ES2-EX2-SS2-SA2-SX2-Operation Manual

DVP-ES2/SA2/SS2/SA2/SX2/SE Operation Manual - Programming
API Mnemonic Operands Function
10 D CMP P Compare
ES2/EX2
Controllers
SS2 SA2
SE SX2
Type Bit Devices Word devices Program Steps
OP X Y M S K H KnX KnY KnM KnS T C D E F CMP, CMPP: 7 steps
S 1 * * * * * * * * * * * DCMP, DCMPP: 13 steps
S 2 * * * * * * * * * * *
D * * *
PULSE 16-bit 32-bit
SA2
SA2
SA2
ES2/EX2 SS2 SX2 ES2/EX2 SS2 SX2 ES2/EX2 SS2
SE
SE
SE
Operands:
S 1 : Comparison Value 1 S 2 : Comparison Value 2 D: Comparison result
Explanations:
1. The contents of S 1 and S 2 are compared and D stores the comparison result.
2. The comparison values are signed binary values. If b15=1 in 16-bit instruction or b31=1 in
32-bit instruction, the comparison will regard the value as a negative binary value.
3. Operand D occupies 3 continuous devices. D, D +1, D +2 hold the comparison results,
D = ON if S 1 > S 2 , D +1 = ON if S 1 = S 2 , D +2 = ON if S 1 < S 2
4. If operand S 1 , S 2 use index register F, only 16-bit instruction is available.
Program example:
1. If D is set as Y0, then Y0, Y1, Y2 will display the comparison results as shown below.
2. When X20 = ON, CMP instruction is executed and one of Y0, Y1, Y2 will be ON. When X20 =
OFF, CMP instruction is not executed and Y0, Y1, Y2 remain in their previous condition.
SX2
X20
Y0
Y1
Y2
CMP K10 D10 Y0
If K10>D10, Y0 = On
If K10=D10, Y1 = On
If K10