Stopping The Logging Operation - Mitsubishi Electric R60AD8-G User Manual

Stopping the logging operation

Logging operation stops (holds) when the preset trigger condition is satisfied and the set points of the data are collected.
A trigger that is generated when the condition is satisfied is called a hold trigger.
To generate a hold trigger, the following two methods are available.
Page 69 Logging hold request
Page 70 Level trigger
When a hold trigger is detected during data collection, the logging operation stops after the points of the data set in 'CH1 Post-
trigger logging points' (Un\G539) are collected.
'CH1 Logging enable/disable
setting' (Un\G535)
'Operating condition setting
request' (Y9)
'Operating condition setting
completed flag' (X9)
Hold trigger
Logging hold flag
Post-trigger logging points
Set the number of data collected in the period from the detection of a hold trigger to logging operation stop to 'CH1 Post-
trigger logging points' (Un\G539).
Checking that the logging has stopped
Check that 'CH1 Logging hold flag' (Un\G409) is ON (1).
Checking data when a hold trigger has occurred
The storage location of the data when a hold trigger has occurred can be checked with 'CH1 Trigger pointer' (Un\G437).
The offset value counted from the start address of 'CH1 Logging data' (Un\G10000 to Un\G10999) is stored in 'CH1 Trigger
pointer' (Un\G437).
Ex.
The value stored in 'CH1 Trigger pointer' (Un\G437) when the logging operation stops under the following conditions
• 'CH1 Post-trigger logging points' (Un\G539): 655 points
• The data location where a hold trigger has occurred: 350th data
CH Latest pointer = 4
CH Head pointer = 5
1 FUNCTIONS
66
1.12 Logging Function
Enable (0)
ON
OFF
ON
OFF
OFF
Address 0
Address 1
Address 2
Address 3
Address 4
Address 5
Address 349
Address 350
Address 351
Address 998
Address 999
The data corresponding to the
points set in 'CH1 Post-trigger
logging points' (Un\G539) is
collected.
ON
the latest
the oldest
CH Trigger pointer = 350