Mitsubishi Electric MELSEC iQ-R Series User Manual page 49

Resuming the logging
It may take time until ON (1) is stored in 'CH1 Logging hold flag' (Un\G409) after 'CH1 Logging hold request' (Un\G471) is
changed from off to on.
To resume logging, check that ON (1) is stored in 'CH1 Logging hold flag' (Un\G409) and change 'CH1 Logging hold request'
(Un\G471) from on to off. After logging resumes, the value is stored from the start buffer memory area of CH1 Logging data
(Un\G10000 to Un\G10999).
In addition, OFF (0) is stored in 'CH1 Logging hold flag' (Un\G409).
'CH1 Logging hold request'
OFF(0)
(Un\G471)
'CH1 Logging hold flag'
(Un\G409)
Logging status Logging
Logging does not stop when 'CH1 Logging hold request' (Un\G471) is changed from on to off before ON (1) is stored in 'CH1
Logging hold flag' (Un\G409).
'CH1 Logging hold request'
(Un\G471)
'CH1 Logging hold flag'
(Un\G409)
Logging status
■Buffer memory area status when logging resumes
The following table shows the buffer memory area status when logging resumes.
Buffer memory area
'CH1 Head pointer' (Un\G434)
'CH1 Latest pointer' (Un\G435)
'CH1 Number of logging data' (Un\G436)
'CH1 Trigger pointer' (Un\G437)
'CH1 Trigger generation time' (Un\G444 to Un\G448)
CH1 Logging data (Un\G10000 to Un\G10999)
Controlled by the temperature input module
Controlled by the program
ON(1)
OFF(0)
Logging post-trigger
Logging held
data
Controlled by the temperature input module
Controlled by the program
OFF(0) ON(1)
OFF(0)
Logging Logging post-trigger data
Value status
Values are initialized.
The values before logging resumes are not initialized.
After logging resumes, values are stored from the start address of CH1 Logging data
(Un\G10000 to Un\G10999). To refer to the logging data, check which area has valid data
with 'CH1 Number of logging data' (Un\G436).
OFF(0)
ON(1) OFF(0)
Logging
OFF(0)
Logging
The logging does not stop.
1 FUNCTIONS
1.10 Logging Function
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