Mitsubishi Electric MELSEC FX Series - Page 703

7 Applied Instructions
7.23 Data Table Operation
701
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
1
Outline
2
Instruction List
3
Configuration of Instruction
4
How to Read Explanation of Instructions
5
Basic Instruction
6
Step Ladder Instructions
7
Applied Instructions
8
Interrupt Function and Pulse Catch Function
A
Relationships between devices and addresses
3. Applicable devices
Function and operation explanation
1. 16-bit operation (BAND/BANDP)
Depending on how the input value (16-bit binary value) of the device specified by compares to the upper
and lower limit dead band range between the devices specified by and , the output value to be
stored in the device specified by is controlled.
The output value is controlled as shown below.
Operand
type
Bit Devices Word Devices Others
System user Digit specification
System
user
Special
unit
Index
Cons
tant
Real
Number
Character
String
Pointer
XYMTCS
D.b
KnX KnY KnM KnS T C D R
U\G
VZModifierK H E
""
P
zz z zzzzz z z zz
zz z zzzzz z z zz
zz z zzzzz z z
zzzzzzz z z
Output
Upper limit value of dead band( )
Input value( )
Output
)
Input
value
Output value
Lower limit value
of dead band
Output
value=0
s2
Output value( )
d
s1
(
s3
BAND
EN ENO
d
s1
s2
s3
Command
input
Lower limit value of dead band
Upper limit value of dead band
Input value controlled by the dead band
Device storing the output value controlled by the dead band.
ds1 s1
1)
In the case of " > " ................................ - →
lower limit
value
lower limit
value
input
value
output
value
s3
s2 s2 d
2)
In the case of " < " ................................ - →
upper limit
value
upper limit
value
input
value
output
value
s3 s3
s3
s1
lower limit
value
s2
upper limit
value
3)
In the case of " ≤ ≤ " ......................................................... 0 →
input
value
d
output
value
s3
input
value
input
value