When Trigger Instruction Executed; States Of The Data Logging Function; Data Logging States - Mitsubishi Electric FX5 User Manual
Melsec iq-f series
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Specifying the monitored data
For the device change specification, monitored data can be configured to be collected from the devices listed in the following
table. The data types that can be selected include bit/word (unsigned), word (signed), double word (unsigned), and double
word (signed). If double word (unsigned) or double word (signed) is specified, a trigger occurs only when data equal to one
double word is written. No trigger occurs when only the upper or lower word of a double word is written.
Type
*2
Bit device
*3
Word device
Double-word device
*1 Index modification, and indirect specification cannot be specified.
*2 For bit devices, bit specification of word cannot be specified.
*3 For word devices, nibble specification of bit devices cannot be specified.
*4 To specify these devices with the CPU Module Logging Configuration Tool, use T (contact): TS, ST (contact): STS, C (contact): CS, LC
(contact): LCS.
*5 To specify these devices with the CPU Module Logging Configuration Tool, use T (current value): T or TN, ST (current value): ST or
STN, C (current value): C or CN, and LC (current value): LC or LCN.
When trigger instruction executed
A trigger occurs when the LOGTRG instruction is executed. (MELSEC iQ-F FX5 Programming Manual (Instructions,
Standard Functions/Function Blocks))
19.5
States of the Data Logging Function
The data logging function has various states that can be classified into data logging and storage. The data logging state and
storage state can be checked by CPU Module Logging Configuration Tool. (Page 474 Logging status and operation)
Data logging states
The following table lists all the possible data logging states.
Data logging states
Stop
Waiting RUN Not collected
Waiting start Not collected
Pause
Waiting to establish collection
conditions Not collected
Collecting
Waiting trigger Collecting before
trigger
Collecting after trigger
Collection completed
Error
*1
Device
X, Y, M, SM, L, B, F, SB, T (contact)
*5
T (Current value)
, ST (Current value)
*5
LC (Current value)
Description
No data logging settings are registered and data collection is inactive.
Data collection has not yet begun because the CPU module is not in the RUN mode.
Data collection has not yet begun because waiting for the start command.
Data logging is suspended and data collection is inactive.
Waiting for the first collection timing after the start command.
Continuous logging is active and collecting data.
Trigger logging is active and collecting data, waiting until the trigger condition is met.
Trigger logging is active and collecting data after the trigger condition is met.
• Continuous logging: Data collection has finished upon reaching "Number of files to be saved" specified as part of the
"Stop" setting configured in "Operation when the number of files exceeds the set value."
• Trigger logging: Has finished collecting as much data as the specified number of records.
Data logging has failed due to the occurrence of an error.
*4
*4
*4
, ST (contact)
, C (contact)
, LC (contact)
*5
*5
, C (Current value)
, D, SD, W, SW, R, U\G
19.5 States of the Data Logging Function
*4
19 DATA LOGGING FUNCTION
19
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