Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 383

[Setting the monitoring condition]
• Set a condition to generate a hold trigger in 'CH1 Level trigger condition setting' (Un\G540).
Setting value Description
1: Level trigger (Condition:
Stored value of a buffer memory area to be monitored
Rise)
2: Level trigger (Condition:
Fall)
3: Level trigger (Condition:
Trigger setting
Rise and fall)
value
(a) A hold trigger is generated when the relation between the values changes
(b) A hold trigger is generated when the relation between the values changes
• Set a value where a hold trigger is generated to 'CH1 Trigger setting value' (Un\G542).
Item
'CH1 Trigger setting value' (Un\G542)
The following figure shows the relation between setting items to be configured for the initial setting of a level
trigger.
CH Trigger data
CH
Digital operation value
CH
Digital output value
Level data 
For example if trying to generate a hold trigger when a value in 'CH1 Digital output value' (Un\G400) is greater
than 1000, set as follows.
• 'CH1 Level trigger condition setting' (Un\G540): Rise (1)
• 'CH1 Trigger data' (Un\G541): 400
• 'CH1 Trigger setting value' (Un\G542): 1000
(a)
from "Stored value of a buffer memory area to be monitored  Trigger setting
value" to "Stored value of a buffer memory area to be monitored > Trigger
setting value".
from "Stored value of a buffer memory area to be monitored  Trigger setting
value" to "Stored value of a buffer memory area to be monitored < Trigger
setting value".
CH Level trigger condition
setting
Set the condition.
>
(Rise (1))
<
(Fall (2))
> or <
(Rise and fall (3))
Set the address of a buffer memory area to be monitored.
A hold trigger is generated under the
condition (a).
A hold trigger is generated under the
condition (b).
A hold trigger is generated under the
(b)
condition (a) or (b).
Time
Setting range
-32768 to +32767
The condition is
established.
CH Trigger setting value
Set a reference value to generate a trigger.
-32768 to +32767
3
A trigger is
generated.
3 FX5-8AD
381
3.4 Functions