FX Series Programmable Controller Diagnostic Devices 6
6-11
6.6 Step Ladder (STL) Flags
(M8040 to M8049 and D8040 to D8049)
For symbol key see page 6-1.
General note:
• M8046 to M8049 STL states are updated when the END instruction is executed.
Diagnostic
Device
Operation
Diagnostic
Device
Operation
M8040 (-)
STL transfer
disable
When ON STL state transfer
is disabled
D8040 (
7)
Lowest active
STL step
Upto8activeSTLstates,
from the range S0 to S899,
are stored in D8040 to D8047
in ascending numerical order.
(Updated at END)
M8041 (-S)
Transfer start
When ON STL transfer from
initial state is enabled during
automatic operation
(ref. IST FNC 60)
D8041 (
7)
2nd active
STL state
M8042 (-)
Start pulse
A pulse output is given in
response to a start input
(ref. IST FNC 60)
D8042 (
7)
3rd active
STL state
M8043 (-S)
Zero return
complete
On during the last state of
ZERO RETURN mode
(ref. IST FNC 60)
D8043 (
7)
4th active STL
state
M8044 (-S)
Zero point
condition
ON when the machine zero
is detected
(ref. IST FNC 60)
D8044 (
7)
5th active STL
state
M8045 (-)
All output
reset disable
Disables the ‘all output reset’
function when the operation
mode is changed
(ref. IST FNC 60)
D8045 (
7)
6th active STL
state
M8046 (
7)
STL state ON
ON when STL monitoring
has been enabled (M8047)
and there is an active STL
state
D8046 (
7)
7th active STL
state
M8047 (-)
Enable STL
monitoring
When ON D8040 to D8047
are enabled for active STL
step monitoring
D8047 (
7)
8th active STL
state
M8048 (
7)
Annunciator
ON
(Not FX1S,FX1N)
ON when Annunciator
monitoring has been
enabled (M8049) and there
is an active Annunciator flag
D8048 Reserved
M8049 (-)
Enable
Annunciator
monitoring
(Not FX1S,FX1N)
When ON D8049 is enabled
for active Annunciator state
monitoring
D8049 (
7)
Lowest active
Annunciator
(Not FX1S,FX1N)
Stores the lowest currently
active Annunciator from the
range S900 to S999
(Updated at END)
FX
1S
FX
1N
FX
2N
FX2NC
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