Mitsubishi PLC main program end instruction - Database - Database & Sql Blog Articles

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(1) The mnemonic, instruction code, operand and program steps of the main program end instruction are listed in Table 6-5. (2) The command ladder diagram is shown in Figure 6-8.
(3) Instruction description:
The 1FEND instruction indicates the end of a main program. Executing this instruction is the same as executing the END instruction. After executing the I/O processing or warning timer refresh, the program returns to step O.
2 When using multiple FEND instructions, the subroutine or interrupt subroutine should be written between the last FEND instruction and the END instruction, and must end with SRET or IREl'.
3 After executing the FOR instruction, an error occurs in the program that executes the FEND instruction before executing the NEXT instruction.