DVP-15MC Series Motion Controller Operation Manual
8-150
_8
Function Explanation
The BAND instruction performs the dead band control of the value of
In
according to the maximum
value,
MX
and the minimum value,
MN
and the processing result is output to
Out
.
The value of In
The value of Out
In < MN
In - MN
MN
≤
In
≤
MX
0
MX < In
In - MX
The instruction allows input parameters
MN
,
In
and
MX
to connect the variables of different data
types. When
MN
,
In
and
MX
are the variables of different data types, the calculation is performed
with the data type which can contain the range of the values of
MN
,
In
and
MX
. For example, if the
data type of
MN
is REAL and the data types of
In
and
MX
are LREAL, the data type of
Out
is
LREAL.
The instruction allows the input parameters and the output parameter to connect the variables of
different data types. But the length of the data type of the output variable must contain the length of
the variables that the input parameters
connect. Otherwise, an error will occur during the compiling
of the software.
Precautions for Correct Use
The input variables are not allowed to omit. An error will occur during the compiling of the software
if the input variables are omitted. But the output variable is allowed to omit.
When the value of
MN
is greater than that of
MX
, the instruction will still be executed normally and
the value of
Out
will be equal to that of
MX
.
Programming Example
The data types of BAND_MN, BAND_In and BAND_MX are REAL and the data type of Out1 is
LREAL. When BAND_EN is TRUE, the value of Out1 is 0 if the values of BAND_MN, BAND_In and
BAND_MX are 1, 50 and 100 as shown in the following table Variable 1. If the values of
BAND_MN, BAND_In and BAND_MX are 2, 250 and 100, the value of Out1 is 150 (150=250-100)
as shown in the following table Variable 2. If the values of BAND_MN, BAND_In and BAND_MX
are 50, 10 and 100, the value of Out1 is - 40 (- 40 = 10 – 50) as shown in the following table
Variable 3.
Variable 1
Variable name
Data type
Current value
BAND_EN
BOOL
TRUE
BAND_MN
REAL
1
BAND_In
REAL
50
BAND_MX
REAL
100
Out1
LREAL
0
Variable 2
Variable name
Data type
Current value
BAND_EN
BOOL
TRUE
BAND_MN
REAL
2
BAND_In
REAL
250
BAND_MX
REAL
100
Out1
LREAL
150
Variable 3
Variable name
Data type
Current value
BAND_EN
BOOL
TRUE
BAND_MN
REAL
50
Summary of Contents for DVP-15MC Series
Page 19: ...DVP 15MC Series Motion Controller Operation Manual 1 4 _1 MEMO...
Page 23: ...DVP 15MC Series Operation Manual 2 4 _2 MEMO...
Page 31: ...DVP 15MC Series Motion Controller Operation Manual 3 8 _3 MEMO...
Page 75: ...DVP 15MC Series Motion Controller Operation Manual 6 26 _6 MEMO...
Page 87: ...DVP 15MC Series Motion Controller Operation Manual 7 12 _7 MEMO...
Page 432: ...Chapter 8 Logic Instructions 8 345 8_ MEMO...
Page 470: ...DVP 15MC Series Motion Controller Operation Manual 10 34 10 MEMO...
Page 878: ...DVP 15MC Series Motion Controller Operation Manual 11 408 11 1 MEMO...
Page 920: ...DVP 15MC Series Motion Controller Operation Manual A 16 A MEMO...
Page 941: ...D 1 D Explanation of Homing Modes Table of Contents D 1 Explanation of Homing Modes D 2...
Page 966: ...DVP 15MC Series Motion Controller Operation Manual D 26 D MEMO...
