Delta MH300 Series - Page 920

Chapter 16 PLC Function ApplicationsMH300
16-57
API
CMP
S1 S2 D
Compare set output
10
D
P
bit device
Word device
16-bit command (7 STEP)
CMP
Continuous
execution type
CMPP
Pulse
execution type
32-bit command (13 STEP)
DCMP
Continuous
execution type
DCMPP
Pulse
execution type
Flag signal: none
X
Y
M
K
H
KnX
KnY
KnM
T
C
D
S1
＊ ＊ ＊ ＊ ＊ ＊ ＊ ＊
S2
＊ ＊ ＊ ＊ ＊ ＊ ＊ ＊
D
＊ ＊
Notes on operand usage:
The operand D occupies three consecutive points

S1: Compare value 1. S2: Compare value 2. D: Results of comparison.
 Compares the size of the content of operand S1 and S2; stores the results of the
comparison in D.

Size comparison is performed algebraically. All data is compared in the form of
numerical binary values. Because this is a 16-
bit command, when b15 is 1, this
indicates a negative number.

When the designated device is Y0, it automatically occupies Y0, Y1 and Y2.
 When X10 = ON, the CMP command executes, and Y0, Y1 or Y2 is ON
. When
X10 = OFF
, the CMP command does not execute, and the state of Y0, Y1 and
Y2 remain in the state prior to X10=OFF.
 For ≥, ≤, or ≠ comparison results, use series and parallel connections among Y0–
Y2.
 To clear results of comparison, use the RST or ZRST command.
X10
M0
RST
M1
RST
M2
RST
X10
M0ZRST
M2