Preliminary Knowledge For Creating Step Ladder Programs - Mitsubishi Electric FX3G SERIES Programming Manual

Programmable controllers

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Series Programmable Controllers

Programming Manual - Basic & Applied Instruction Edition

2. Program for the transfer destination

There is no change in programming especially for the transfer destination.

Preliminary knowledge for creating step ladder programs

List of sequence instructions available between the STL instruction and RET instruction

Initial/general state relay

Branch/recombination

• The STL instruction cannot be used in interrupt programs and subroutine programs.

• When using SFC programs (STL instruction), do not drive state relays S using SET or OUT instructions in an

interrupt program.

• It is not prohibited to use jump instructions in state relays, but it is not recommended because complicated

movements will result.

MPS instruction cannot be used immediately after an STL instruction, even in a drive processing circuit.

→ For the preliminary knowledge for creating SFC programs, refer to Subsection 35.1.7.

Drive processing

Transfer processing

LD/LDI/LDP/LDF,

AND/ANI/ANDP/ANDF,

ANB/ORB/MPS/MRD/

OR/ORI/ORP/ORF,

INV,MEP/MEF,OUT,

SET/RST,PLS/PLF

35 SFC Program and Step Ladder

35.2 Step Ladder

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