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Comparison Output Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

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1.6

Comparison Output Function

This function detects the accumulating count value reaching or exceeding the set value.
Operation
'CH1 Accumulating counter comparison flag (X10)' turns on to notify the user of the accumulating count value reaching or
exceeding 'CH1 Comparison output setting value' (Un\G130, Un\G131). Count operation continues.
Ex.
This section describes an operation example when 'CH1 Comparison output setting value' (Un\G130, Un\G131) is set to
1200.
'CH1 Count enable'
(Y18)
OFF
'CH1 Sampling pulse
number' (Un\G0)
'CH1 Accumulating
count value' (Un\G2,
Un\G3)
'CH1 Accumulating
counter comparison
OFF
flag' (X10)
'CH1 Comparison
signal reset request'
OFF
(Y10)
Performed by the pulse input module
Performed by a program
No.
Operation
(1)
When 'CH1 Count enable' (Y18) is turned on, the count operation starts.
(2)
When 'CH1 Accumulating count value' (Un\G2, Un\G3) reaches or exceeds 1200, 'CH1 Accumulating counter comparison flag' (X10) turns on. 'CH1
Accumulating count value' (Un\G2, Un\G3) is updated in the cycle set with the count cycle change function, so 'CH1 Accumulating counter
comparison flag' (X10) turns on at the same timing.
Comparison result clearing
When 'CH1 Comparison signal reset request' (Y10) is turned on, 'CH1 Accumulating counter comparison flag' (X10) turns off.
If the count type is linear counter, once 'CH1 Accumulating counter comparison flag' (X10) turns off, it will not turn on again
until the accumulating count value is reset and reaches or exceeds the value of 'CH1 Comparison output setting value'
(Un\G130, Un\G131) again. If the count type is ring counter, the flag will turn on when the accumulating count value reaches
or exceeds the value of 'CH1 Comparison output setting value' (Un\G130, Un\G131) again during ring processing.
Setting method
1.
Set "Comparison output selection" to "Comparison output function valid".
[Navigation window]  [Parameter]  [Module Information]  Module model name  [Application setting] 
[Comparison output function]
2.
Set "Comparison output setting value" to a value.
Item
Comparison output setting value
1 FUNCTIONS
1.6 Comparison Output Function
ON
(1)
0
0
788
0
0
788
312
288
1100
1388
ON
(2)
ON
Setting range
0 to 99999999

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