Continuous Logging Function; Trigger Logging Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

Continuous logging function

This function continuously logs target data at the specified sampling interval.
The sampled values are written in the logging file whenever target data is sampled.
Min.:Sec. Value
00:00 100
Time
00:01 101
00:02 102

Trigger logging function

This function logs target data at trigger occurrence (specified condition is satisfied) or before and after the trigger occurrence.
When logging device values before and after the trigger occurrence, the number of logging lines can be specified.
For trigger conditions, refer to the following:
Page 40 Trigger conditions
Min.:Sec. Value
00:00 0
00:01 1
Time
01:01 61 Occurrence
01:02 62
02:15 135
02:16 136
When the number of device points to be sampled exceeds the access units and general sampling is specified
for the data sampling method, device values are sampled over multiple sequence scans, and the values are
logged as one data row. Therefore, device values sampled in another sequence scan as the one where the
trigger occurred may be included in one data row. To avoid this, the number of device points that can be
sampled at once should be less than the access units or high speed sampling should be used.
For the access units, refer to the following:
MELSEC iQ-R High Speed Data Logger Module User's Manual (Startup)
Device value sampling
CPU module
Trigger
Before
After
CPU module
High speed data logger module
Device value SD memory card
sampling
High speed data logger module
SD memory card
1 FUNCTION
1.1 Data Logging Function
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