Mitsubishi Electric MELSEC iQ-R Series User Manual page 46

■Number of times
The number of times the condition is satisfied (number of counts) is compared with the specified number of times. A trigger
occurs when the condition is satisfied.
The conditions for the trigger occurrence are as follows:
Conditions for the occurrence of a trigger = [Number of times the count condition is satisfied] (=, , , , <, >) [Specified
number of times]
The timing to compare the number of counts and the specified number of times can be selected from "When a terminal
condition holds true" and "When a specified number of times is exceeded".
• When a terminal condition holds true
The number of times the count condition is satisfied is counted from when the start condition has been satisfied to when the
terminal condition has been satisfied (count period).
When a terminal condition is satisfied, the conditions for the occurrence of a trigger are judged. If the conditions are satisfied,
a trigger occurs.
After that, the number of counts is reset when the start condition has been satisfied, and the next count is started.
The start condition, terminal condition, and count condition determine the rise of conditions.
Ex.
Conditions for the occurrence of a trigger = Number of times the count condition is satisfied > 2
The number of counts at the time of the terminal condition satisfaction is 3, and the occurrence condition is fulfilled.
The trigger occurs when the terminal condition is satisfied.
Wait for start condition to
be established
Trigger
True
Start
condition
False
True
Terminal
condition False
Number of
counts
True
Count
condition False
1 FUNCTION
44
1.1 Data Logging Function
Wait for start condition to
Count period
be established
Occurrence
1 2 3