Operation Flags (M8020 To M8029 And D8020 To D8029) - Mitsubishi FX1S Series Programming Manual

FX Series Programmable Controller
6.4 Operation Flags (M8020 to M8029 and
D8020 to D8029)
Diagnostic
Device
7
M8020 ( )
Zero
7
M8021 ( )
Borrow
-
M8022 ( )
Carry
M8024
(Not FX , FX
1S 1N
M8025
(Not FX , FX
1S 1N
M8026
(Not FX , FX
1S 1N
M8027
(Not FX , FX
1S 1N
M8028
Note:
Separate FX and
1S
FX operation
2N/2NC
(Not FX )
1N
M8029 (7)
Instruction
execution
complete
For symbol key see page 6-1.
Note 3
• If M8024 is used with a BMOV (FNC 15) instruction, it will operate as follows;
M8024 OFF - Normal operation (Forwarding direction is [S] to [D])
M8024 ON - Reverse operation (Forwarding direction becomes [D] to [S])
This device is not supported in FX
Note 4
• The settings for input filters only apply to the main processing units which use 24V DC
inputs. AC input filters are not adjustable.
Note 5
• For Z1~Z7 and V1~V7 (D8128~D8195) please see page 6-20.
Operation
Set when the result of an
ADD (FNC 20) or SUB (FNC
21) is "0"
Set when the result of a SUB
(FNC 21) is less than the
min. negative number
Set when 'carry' occurs
during an ADD (FNC 20) or
when an overflow occurs as
a result of a data shift
operation
BMOV (FNC 15) reverse
mode. See note 3
)
When ON HSC (FNC 53 - 55)
instructions are processed
even when the external HSC
)
reset input is activated
RAMP (FNC 67) hold mode
)
PR (FNC 77) 16 element
data string
)
FX : Change timers
1S
T32 ~ T62 to 10ms type
FX , FX : Permit
2N 2NC
FROM/TO to interrupt
program.
(V3.00 and above)
Set on the completion of
operations such as DSW
(FNC 72), RAMP (FNC 67)
etc.
Diagnostic
Device
-
( )
D8020
See note 4
-
( )
D8021
(Not FX , FX
1N @N
FX
2NC
See note 4
D8022 -D8027 Reserved
D8028 (7)
D8029 (7)
and FX
1S 1N
Diagnostic Devices 6
FX FX FX
1S 1N 2N
Operation
Input filter setting for devices;
X000 to X017 (FX
2N,
default value = 10 msec,
zero value = 50 µsec
(X000, X001: 20 µsec)
X000 to X007 (FX
1S,
default value = 10msec
zero value = 50 µsec
(X000, X001: 10 µsec)
Input filter setting for devices;
X010 to X017 (FX
1S
,
default value = 10 msec,
zero value = 50 µsec
Current value of the Z0 index
register
See note 5
Current value of the V0 index
register
See note 5
6-9
FX
2NC
FX )
2NC
FX )
1N
)