Mitsubishi Electric R60AD8-G - Logging Hold Request

1 FUNCTIONS
1.12 Logging Function
69
1
Logging hold request
A hold trigger is generated from a program at any timing.
Logging starts when ON (1) is set to 'CH1 Logging hold request' (Un\G471) and stops after a preset number of the data is
collected.
• The following delay time occurs until the A/D converter module receives a hold trigger after the value in
'CH1 Logging hold request' (Un\G471) is changed from OFF (0) to 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) to OFF (0) before 'CH1 Logging hold
flag' (Un\G409) turns to ON (1), the data set in 'CH1 Post-trigger logging points' (Un\G539) is not held after
logging, and logging resumes soon.
• 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) to turn on
'Error flag' (XF) and the ERR LED.
Checking that the logging has stopped
Check that 'CH1 Logging hold flag' (Un\G409) is ON (1).
To refer to the logging data from the CPU module, hold (stop) the logging operation and check that ON (1) is
stored in 'CH1 Logging hold flag' (Un\G409).
OFF(0) ON(1)
A hold trigger is generated.
'CH1 Logging hold request'
(Un\G471)
The data before the last 1000 points
are discarded.
'CH1 Post-trigger
logging points'
(Un\G539)
CH1 Logging data
(Un\G10000 to Un\G10999)
The logging is held.
'CH1 Number of logging data' (Un\G436) ≤ 1000 points
Controlled by the A/D converter module