Mitsubishi Electric MELSEC Q Series User Manual page 289

6 FUNCTIONS
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(a) Tag name
1) Set the tag name to be monitored.
2) Select the tag name set in the tag setting.
(Refer to Section 6.3.3 for the tag setting.)
3) The Tag name drop-down list displays the setting No. and tag names
of the tag setting.
(b) Component name
1) Set the component name to be monitored. (Except the component of
which data type is String) ( )
2) Select the component name set in "Component setting" of the tag
setting.
(Refer to Section 6.3.3 for the tag setting.)
3) The Component name drop-down list displays the setting No. and
component names of the component setting.
When the component is displayed in the exponential form, a rounding
error is produced in the range outside the number of digits set in the
number of decimal places.
Note that setting components in exponential form in the tag event
setting may cause incorrect event detection.
(Example) When "Exponential " and "4" are respectively set to
(c) Condition
Select the condition on which the component of the programmable
controller CPU is monitored.
Item
Component = Trigger value
Component <> Trigger value
Component >= Trigger value The component value is equal to or greater than the trigger value.
Component > Trigger value
Component < Trigger value
Component <= Trigger value The component value is equal to or less than the trigger value.
(d) Trigger value
Set the trigger value of the condition.
"Display form" and "Number of decimal places" for a
component.
When the device value is 123456, the component value will
be 1.2346E + 05.
When the device value is 123464, the component value will
be 1.2346E + 05.
Since the data in the lowest digit is rounded as indicated
above, an event occurs in either case when the condition is
set to "=" or the trigger value to "123460" in the tag event
setting
The component value is equal to the trigger value are the same.
The component value is not equal to the trigger value are
different.
The component value is greater than the trigger value.
The component value is less than the trigger value.
MELSEC-Q
Description
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