Delta VFD300C43S-HS User Manual page 699

API
ZCP
11
D P
Bit device
X Y M K
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

S
 When the comparative value
upper limit
 When lower limit
S1
 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.
 To clear results of comparison, use the RST or ZRST command.
X0
S1 S2 S D
Word device
H KnX KnY KnM T
* * * * *
* * * * *
* * * * *
: Lower limit of range comparison.
: Comparative value.
S2
, the results of comparison are expressed in
S1
> upper limit
to perform comparison with the upper and lower limit.
M0
RST
RST M1
RST M2
Chapter 16 PLC Function ApplicationsC2000-HS
Range comparison
16-bit command (9 STEP)
ZCP Continuous
C D
execution type
* *
* *
32-bit command (17 STEP)
* *
DZCP Continuous
execution type
Flag signal: none
S2
: Upper limit of range comparison.
D
: Results of comparison.
S
is compared with the lower limit
S2
, the command will use the lower limit
X0
ZRST
16-57
ZCPP Pulse
execution type
DZCPP Pulse
execution type
S1
and
D
.
M0 M2