Mitsubishi MELSEC iQ-F, User Manual

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4 FUNCTIONS
4.13 Logging Function
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4
Logging hold request
A hold trigger is generated from a program at any timing.
After ON (1) is set to 'CH1 Logging hold request' (Un\G471), a preset number of data is collected and then the logging stops.
• The following delay time occurs until multiple input module receives a hold trigger after the value in 'CH1
Logging hold request' (Un\G471) is changed from OFF (0)
→
ON (1).
Trigger delay = Logging cycle (Cycle at which logging is actually performed) + Scan time of the CPU module
• When 'CH1 Logging hold request' (Un\G471) is changed from ON (1)
→
OFF (0) before 'CH1 Logging hold
flag' (Un\G409) turns to ON (1), the number of data set in 'CH1 Post-trigger logging points' (Un\G539) is
collected, and then logging resumes soon, without stopping.
• If a value other than OFF (0) and ON (1) is set to 'CH1 Logging hold request' (Un\G471), an error occurs. A
logging hold request range error (error code: 1D7  H) is stored in 'Latest error code' (Un\G0), 'Error flag'
(Un\G69, b15) and the ERROR LED turn on.
Checking that the logging has stopped
Check that 'CH1 Logging hold flag' (Un\G409) is ON (1).
OFF(0) ON(1)
A hold trigger is generated.
'CH1 Logging hold request'
(Un\G471)
The data before the last 10000 points
are discarded.
'CH1 Post-trigger
logging points'
(Un\G539)
CH1 Logging data
(Un\G10000 to Un\G19999)
The logging is held.
'CH1 Number of logging data' (Un\G436)

10000 points
Controlled by the multiple input module