10 MOTION SFC PROGRAMS
10.4 Operation/Transition Control Specifications
Item
Calculation expression
Expression
Conditional
expression
Input
Output
Internal relay
Link relay
Bit devices
Annunciator
Special relay
CAUTION
<Restrictions on write-enabled bit devices>
1) "X Devices" except " Actual inputs" can be written .
2) Special relay has predetermined applications in the system.
Do not perform write to other than the user setting device.
Data register
Link register
Special register
Motion register
Word devices
Coasting timer
CAUTION
<Restrictions on write-enabled word devices>
1) Special register has predetermined applications in the system.
Do not perform write to other than the user-set device.
(1) Table of Operation/Transition Control Specifications
Returns a numeric result.
Expressions for calculating indirectly specified data using constants
and word devices.
Bit conditional
Returns a true or false result.
expression
Expression for judging ON or OFF of bit device.
Comparison
Expressions for comparing indirectly specified data and calculation
conditional
expressions using constants and word devices.
expression
Device
Symbol
Input
X
Actual Input
PX
Output
Y
Actual Output
PY
M
B
F
SM
Devices
Symbol
D
W
SD
#
FT
Specifications
Accessibility
Usable tasks
Read
Write
Normal
Event
Accessibility
Usable tasks
Read
Write
Normal
Event
10 - 10
Remark
D100+1,SIN(D100), etc.
M0, !M0, M1*M0,
(M1+M2)*(!M3+M4), etc.
D100==100
D10<D102+D10, etc.
The input X/output Y are
written with the actual input
Description
PX/actual output PY.
example
X100
Set the I/O number of
"Actual inputs/ Actual
PX180
outputs (PX/PY)" to "First
Y100
I/O No" in "System
PY1E0
Structure" of MT
M20
Developer2
B3FF
DI : PX0 to PXFFF
F0
DO : PY0 to PYFFF
SM0
: usable
: unusable
Description
example
DOL
W1F : F
SD0
#0F
FT
: usable
: unusable