User`s manual

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MELSEC-Q
8 I/O CONTROL INSTRUCTIONS
8.5 Time Rate Example (S.DUTY)
Usable devices
Internal devices
(System, user)
MELSECNET/H
direct J
\
Setting
data
Bit Word
File
register
Bit Word
Intelligent
function
module
U
\G
Index
register
Zn
Constant
K, H
Other
S1
D1
S2
D2
S.DUTY
S.DUTY
[Instruction symbol] [Execution condition]
Start contact
S1 D1 S2 D2
Set data Description
S1
Input data head device
D1
Block memory head device
S2
Dummy device
*1
D2
Loop tag memory head device
*1: Special register SD1506 can be specified as a dummy device.
Functions
Calculates the manipulated value (MV) by performing input addition processing from the input
value (E1
MV) of the device specified in
S1
. Turns ON/OFF the device specified in
D1
in
proportion to the manipulated value (MV).
The ON/OFF time is a value on the assumption that the time specified as the control output cycle
(CTDUTY) is 100%.
The ON/OFF time is changed in each execution cycle.
Also performs the change rate, upper/lower limiter and reset windup of the calculated manipulated
value (MV) at this time.
Manipulated
value
70
50
30
OFF
ON
30
50 70
70 50 30
Time
Output Value (BW)
(Device specified in )
D1