810
FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
35 SFC Program and Step Ladder
35.1 SFC Program
Use of a timer two or more times
• In the same way as an output coil, a timer coil can be
programmed in different state relays. However, it is not
permitted to program the same timer coil in adjacent
state relays. If the same timer coil is programmed in
adjacent state relays, the timer coil is not set to OFF at
process transfer, so the current value is not reset.
Output driving method
• It is not permitted to write program an instruction not requiring a contact after LD or LDI instruction from a
bus line in a state relay.
Change such a circuit as shown below.
41
42
40
T1
T1
T1
K10
K20
Not
allowed
10
Y001
X005
Y002
Y003
10
Y001
X005
Y002
Y003
Move the
position.
10
Y001
M8000
Y003
Y002
Insert "Always ON"
contact.
X005
RUN
monitor
or
Change
Change
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