Level Trigger - Mitsubishi Electric MELSEC iQ-R Series User Manual

Level trigger

When a value in the monitored buffer memory area of a temperature input module satisfies a preset condition, a hold trigger is
generated.
A level trigger is monitored on the refreshing cycle of the measured temperature value or the scaling value.
Initial setting of a level trigger
■Setting a target to be monitored
As a condition to generate a hold trigger, set the buffer memory address to be monitored to 'CH1 Trigger data' (Un\G541).
Item
'CH1 Trigger data' (Un\G541)
To monitor a device value of a module other than a temperature input module such as a device of the CPU module, set as
follows.
• Set a value between 90 and 99 ('Level data ' (Un\G90 to Un\G99)) to 'CH1 Trigger data' (Un\G541).
• Write a value of the monitored device to 'Level data ' (Un\G90 to Un\G99) by using the MOV instruction.
Ex.
Application example of 'Level data ' (Un\G90 to Un\G99)
To monitor the data register D100 in the CPU module and generate the level trigger in CH1, create a program as follows.
• Set 'CH1 Trigger data' (Un\G541) to 91 (buffer memory address of Level data 1) (when Level data 1 is used).
• Store the storage data of D100 in 'Level data 1' (Un\G91) by the program continuously.
Specify an appropriate data such as 'CH1 Measured temperature value' (Un\G400), 'CH1 Scaling value'
(Un\G402), or Level data  (Un\G90 to Un\G99) to 'CH1 Trigger data' (Un\G541). When a setting area or a
system area is specified, the normal operation is not guaranteed.
Setting range
0 to 9999
1 FUNCTIONS
49
1.10 Logging Function
1