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13 Applied Instructions (Handy Instruction)
13.1 IST / Initial State
314
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
Cautions
1. Devices designated in and switches to be used
Not all mode selection switches are used.
Vacant numbers (not usable in other applications) are designated in switches not in use.
2. Program sequence of IST command and STL command
• IST command must be programmed prior to a series of STL circuits such as states S0 to S2.
3. State to be used in operation for return to home position
Use S10 to S19 for state for return to home position.
In final state for return to home position, after setting M8043, terminate by self-resetting.
4. Limit times of use of command
IST command can be programmed only once in the program.
5. Object devices are restricted.
S1: The FX3U and FX3UC PLCs only are applicable.
However, index modifier (V, Z) is not applicable.
S2: The device range is limited as follows by the PLC.
S20 to S899, S1000 to S4095 (FX
3G, FX3GC, FX3U and FX3UC PLCs)
S20 to S255 (FX
3S PLC)
S20 to S899 (FX
2N and FX2NC PLCs) (FXU and FX2C PLCs)
S20 to S999 (FX
1N and FX1NC PLCs)
S20 to S127 (FX
1S PLC) (FX0N PLC)
S20 to S63 (FX
0S and FX0 PLCs)