Overview Of Comparison Function; Types Of Comparison Function - Panasonic FP7 User Manual

7.1 Overview of Comparison Function

7.1.1 Types of Comparison Function

 Comparison function
• Compares the current value of the high-speed counter with a specified target value, and
reflects the matched value in the comparison match flag.
• There are two methods, which are the target value match comparison and the band
comparison.
• Comparison results can be output to external devices from the unit.
 Comparison match function specifications
Item
No. of
comparison Max. 16 data per channel (Comparison data 0 ~ Comparison data 15)
data
Max. 16 points per channel (Comparison match 0 flag to Comparison match F
flag)
Comparison
match flag Read as input relays (X) by user programs.
Multiple comparison match flags can be set for single comparison data.
Target value match comparison
Sets or resets the comparison match flag when the elapsed value matches the
target value.
Comparison
method
Band comparison
Turns on or off the comparison match flag when the elapsed value is in the
range of specified lower and upper limits.
Max. 2 points per channel
The comparison match 0 flag can be allocated to the external output 0 terminal
of the unit.
The comparison match 1 flag can be allocated to the external output 1 terminal
of the unit.
The following settings are available only when the band comparison function is
External output
used.
ON delay timing: 0 to 1,000 ms
ON hold time: 0 to 1,000 ms
Forced output function
The outputs of external output 0 terminal and external output 1 terminal can be
controlled on the ladder monitor or device monitor of tool software.
 I/O Allocation
Signal name
Comparison match flag
(Note 1): The above I/O numbers are those for the slot number 1 and the starting word number 10. The I/O numbers
actually used vary according to the slot number where the unit is installed and the starting word number.
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Description
CH0 CH1
X110-X11F X130-X13F
Remark
CH2 CH3
X150-X15F X170-X17F