Mitsubishi Electric MELSEC Q Series Structured Programming Manual page 97

Table 5.2.2-1 Ladder symbols in the structured ladder/FBD language (2/2)
Element
Jump
Return
Function
Function block
Function argument input
Function return value output
Function inverted argument input
Function inverted return value
output
The performance of return differs depending on the programs, functions, and
function blocks being used.
• When used in the programs
End the execution of POUs
• When used in the functions
End the functions. Also, return to the next step of the instruction which called
the functions.
• When used in the function blocks
The performance differs depending on whether "Use Macrocode" is checked or
not on the Property screen.
When it is checked, end the execution of POUs.
When it is not checked, end the function blocks. Also, return to the next step of
the instruction which called the functions.
Network element
Pointer branch instruction
Unconditionally executes the program at the specified pointer number
in the same POUs.
Indicates the end of a subroutine program.
Executes a function.
Executes a function block.
Inputs an argument to a function or function block.
Outputs the return value from a function or function block.
Inverts and inputs an argument to a function or function block.
Inverts the return value from a function or function block and outputs it.
5.2.2 Ladder symbols in structured ladder/FBD language
Description
5.2 Structured Ladder/FBD
5
5-15