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FX3S/FX3G/FX3GC/FX3U/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
14 Handy Instruction – FNC 60 to FNC 69
14.1 FNC 60 – IST / Initial State
11
FNC30-FNC39
Rotation and
Shift
12
FNC40-FNC49
Data Operation
13
FNC50-FNC59
High-Speed
Processing
14
FMC60-FNC69
Handy
Instruction
15
FNC70-FNC79
External FX I/O
Device
16
FNC80-FNC89
External FX
Device
17
FNC100-FNC109
Data
Transfer 2
18
FNC110-FNC139
Floating Point
19
FNC140-FNC149
Data
Operation 2
20
FNC150-FNC159
Positioning
Control
3. Assignment of mode selection inputs
For using IST instruction, it is necessary to assign inputs having consecutive device numbers as shown below for
mode inputs.
When using non-consecutive inputs or omitting some modes, change the layout by using an auxiliary relay as the
head input for mode specification as shown in the figure below.
- X020: Individual operation mode
- X021: Zero return operation mode
- X022: Stepping operation mode
- X023: Cycle operation mode
- X024: Continuous operation
- X025: Zero return start
- X026: Automatic mode start
- X027: Stop
In this example, M0 is used as the head input for mode specification.
X030
M 0
Individual
operation mode
X035
M 1
Zero return
operation mode
X033
M 2
Stepping
operation mode
X040
M 3
Cycle operation
mode
X032
M 4
Continuous
operation
X034
M 5
Zero return
start
X026
M 6
Automatic
mode start
X041
M 7
Stop
M 0
Does not
operate
X030
M 1
Zero return
operation mode
M 2
Does not
operate
M 3
X031
M 4
Continuous
operation
X032
M 5
Zero return
start
M 6
Automatic
mode start
X033
M 7
Stop
M8000
RUN monitor
M8000
M 0
X030
M 1
M 2
M 3
X031
M 4
Continuous
operation
X032
M 5
M 6
Automatic
mode start
X033
M 7
Stop
M8000
M8000
Individual
operation mode
When inputs do not have
consecutive device numbers
Example:
X030:Individual operation mode
X035:Zero return operation mode
X033:Stepping operation mode
X040:Cycle operation mode
X032:Continuous operation mode
X034:Zero return start
X026:Automatic mode start
X041:Stop
When only the continuous
operation mode and zero return
operation mode are used
Example:
X030:Zero return operation mode
X031:Continuous operation mode
X032:Automatic mode start zero
return start
X033:Stop
When only the continuous
operation mode and individual
operation mode are used
Example:
X030:Individual operation mode
X031:Continuous operation mode
X032:Automatic mode start
X033:Stop
Does not
operate
M8000
RUN
monitor
FNC 60
IST
M 0 S 20 S 29