Delta CFP2000 Series, User Manual

Page: 632 / 756

Chapter 16 PLC Function Applications
│
CFP2000
16-59
API
ZCP S1 S2 S D
Range comparison
11
D P
Bit device Word device
16-bit command (9 STEP)
ZCP Continuous
execution type
ZCPP Pulse
execution type
32-bit command (17 STEP)
DZCP Continuous
execution type
DZCPP Pulse
execution type
Flag signal: none
X Y M K H KnX KnY KnM T C D
S1
＊ ＊ ＊ ＊ ＊ ＊ ＊ ＊
S2
＊ ＊ ＊ ＊ ＊ ＊ ＊ ＊
S
＊ ＊ ＊ ＊ ＊ ＊ ＊ ＊
D
＊ ＊
Notes on operand usage:
The content value of operand S1 is less than the content value of
S2 operand
The operand D occupies three consecutive points

S1
: Lower limit of range comparison.
S2
: Upper limit of range comparison.
S
: Comparative value.
D
: Results of comparison.

When the comparative value
S
is compared with the lower limit
S1
and
upper limit
S2
, the results of comparison are expressed in
D
.

When lower limit
S1
> upper limit
S2
, the command will use the lower limit
S1
to perform comparison with the upper and lower limit.

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 M0, it automatically occupies M0, M1 and M2.

When X0=On, the ZCP command executes, and M0, M1 or M2 will be On. When
X0=Off, the ZCP command will not execute, and the state of M0, M1 or M2 will
remain in the state prior to X0=Off.

If ≥, ≤, or ≠ results are needed, they can be obtained via series/parallel
connections of M0-M2.
X0
M0
M1
M2
ZCP
If C10 < K10, M0 = On
If K10 < C10 < K100, M1 = On
If C10 > K100, M2 = On
X0
K10 C10 M0 K100
= =

To clear results of comparison, use the RST or ZRST command.
X0
M0 RST
M1
RST
M2
RST
X0
M0
ZRST
M2