Fnc258 - Zone / Zone Control - Mitsubishi Electric MELSEC FX3U Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
29.3 FNC258 – ZONE / Zone Control
Outline
Depending on how the input value compares to positive or negative, the output value is controlled by the bias
value specified.
1. Instruction format
FNC 258
D ZONE
2. Set data
Operand Type
S
1
S
2
S
3
D
3. Applicable devices
Bit Devices
Oper-
and System User
Type
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G
S
1
S
2
S
3
D
Explanation of function and operation
1. 16-bit operation (ZONE and ZONEP)
The bias value specified by
device specified by
The bias value is added as shown below:
Command
input
FNC258
In the case of "
S
In the case of "
S
In the case of " S
706
Mnemonic
16-bit Instruction
ZONE
P
9 steps
ZONEP
Negative bias value to be added to the input value
Positive bias value to be added to the input value
Input value controlled by the zone
Head device number storing the output value controlled by the zone
Digit Specification
or
S S
1
.
D
S
S
1 2
ZONE
Input value < 0" .....
S
3 3
Input value = 0" ...........................................................................0 →
3
Input value > 0" ..... S
3 3
Output
value
Input
value
Operation Condition
32-bit Instruction
Continuous
Operation
Pulse (Single)
Operation
Description
Word Devices
Special
System User
Unit
is added to the input value specified by
2
S D
3
Negative bias value →
Input value + S
1
Positive bias value →
Input value + S
2
Output
value
Positive bias value
( S )
2
0
29 Data Table Operation – FNC250 to FNC269
29.3 FNC258 – ZONE / Zone Control
Mnemonic Operation Condition
DZONE
17 steps
DZONEP
Con- Real
Index
stant Number
V Z Modify K H E
S
3
D Output value
D
Output value
D
Output value
( D )
Input
(
S
value
Negative bias value
( )
S
1
Continuous
Operation
Pulse (Single)
Operation
Data Type
16- or 32-bit binary
Others
Charac-
Pointer
ter String
" " P
, and output to the
)
3