Mitsubishi Electric R16MTCPU Programming Manual page 114

Automatic free G number search feature
■When not set to automatic numbering
Searches for a free number forward, starting with the "set G number + 1" at the "Shift Y/N" or "WAIT Y/N" symbol. When no
free numbers are found after a search up to 4095, a search is made from 0 to the "set G number - 1".
■When set to automatic numbering
Searches for a free number forward (or backward) in the automatic numbering range, starting with the "automatically
numbered G number + 1 (or -1)" at the "Shift Y/N" or "WAIT Y/N" symbol. (The searching method is as in the automatic
numbering setting.)
Automatic logical NOT program generation feature
Automatically generates a program which logically negates the conditional expression block (last block) of the transition
program set at "Shift Y/N" or "WAIT Y/N". The basic is shown below.
[Setting program (conditional expression block)]
Conditional expression//(bit conditional expression or comparison conditional expression)
[Logically negated, automatically generated program (conditional expression block)]
!Conditional expression//(bit conditional expression or comparison conditional expression)
Examples are shown below.
[Setting program (conditional expression block)]
(Example 1)
M0 //Bit device ON
(Example 2)
D0!=K100 //Data register D0 is not K100
[Logically negated, automatically generated program (conditional expression block)]
(Example 1)
!(M0) //Bit device OFF
(Example 2)
!(D0!=K100) //Data register D0 is K100
• Refer to the table of the operation control/transition instruction for the instructions usable in the conditional
expressions of "Shift Y/N" or "WAIT Y/N" transition programs. (Page 22 Table of the operation control/
transition instruction)
• Set conditional expression block only to the setting program.
• For Y/N transitions, there are 2 transition condition judgments by selective branching, therefore the number
of multi active steps is 3 steps.
3 MOTION SFC PROGRAMS
112
3.10 Y/N Transitions