Mitsubishi Electric MELSEC-L Series - Page 107

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CHAPTER 8 HOW TO USE THE CONFIGURATION TOOL
8
8.4 Data Logging Setting 8.4.7 Trigger
*1 A trigger will also occur in a case other than program execution (link refresh, transient update, a device test conducted
from a peripheral device, etc.)
Item Description Setting range
Condition change
specification
Select this to set a trigger to occur when the condition of the specified device is met. -
Device Any of the devices listed in Section 6.3.3 (1) can be set. -
Conditional formula
• For word device
"When values matched": A trigger occurs when the data that match the
specified value are written
*1
, regardless of the current
value status of the specified device (match or not
match with the specified value).
"When values written": A trigger occurs when data are written to the specified
device.
*1
• For bit device
"PLS": A trigger occurs when the status of the specified device is changed from
off to on.
"PLF": A trigger occurs when the status of the specified device is changed from
on to off.
• For word device
"When values matched", "When
values written"
• For bit device
"PLS", "PLF"
Radix Set a radix of the condition value for the word device. DEC or HEX
Value Set a condition value.
• Decimal: -32768 to 32767
• Hexadecimal: 0
H
to FFFF
H
Step No. specification
Select this to set a trigger to occur when the specified step is executed and the
specified condition is met.
-
Target program
name
Enter the program name of the specified step No. Eight alphanumeric characters or less
Step No. Enter a step number of the step set as a trigger. 0 to 266240
Execution condition Set an execution condition.
"Always",
"ON",
"OFF",
"PLS",
"PLF"
When trigger instruction
executed
Select this to set a trigger to occur when the trigger logging set instruction in the
program is executed.
-
When data logging trigger
activated
Select this to set a trigger to occur when the data logging trigger (SM device)
corresponding to each data logging setting No. is turned on.
-