Mitsubishi Electric MELSEC iQ-R Series User Manual page 63

• When selecting "Recording Startup Trigger + File Saving Trigger" for the recording method
Data accumulation stops when the buffer capacity is exceeded.
In addition, if the data capacity for a set saving period exceeds the recording buffer capacity, new data in the saving period is
not saved.
(1)
(2)
(a)
(3)
(b)
(d)
(c)
(1) Recording startup trigger
(2) Accumulating data
(3) Time
(a) Set saving period
(b) Period during which data is accumulated in the recording buffer
(c) Period during which data is actually saved
(d) Period during which data is not saved
■When the capacity of accumulated video data exceeds the buffer capacity
Data for a set saving period may not be saved.
A saving period for video data varies depending on the following conditions:
• Video codec
• Resolution
• Video frame rate
• Video quality
• Maximum video bit rate
• Environment for capturing data
If data for a set saving period is not saved, perform any of the following operations:
• Change the video codec (set it to H.264).
• Lower the resolution.
• Lower the frame rate.
• Lower the video quality.
• Reduce the number of network cameras for data reception.
• Lower the limit value of the maximum video bit rate.
• Increase the recording buffer capacity.
• Shorten the saving period.
Operations when the buffer capacity is exceeded are the same as those shown in the following:
Page 60 When the capacity of accumulated devices and labels exceeds the buffer capacity
1 FUNCTIONS
61
1.1 Recording Function
1