Mitsubishi MELSEC Q series User Manual page 124

(2) Setting items
Item
Device
Conditional
Device
formula
change
specification
Condition
specification
Radix
Value
Target
program
name
Step No.
Step No.
specification
Execution
condition
When trigger instruction executed
When data logging trigger activated
*1 A trigger will also occur in a case other than program execution (such as link refresh, transient update, or a device test
conducted from a peripheral device).
122
Any of the devices listed in Page 59, Section 6.3.2 (1) (a) can be set.
• For bit device
"PLS": When the bit of the bit device rises
A trigger occurs when the status of the specified device is changed from
off to on.
"PLF": When the bit of the bit device falls
A trigger occurs when the status of the specified device is changed from
on to off.
• For word device
"=": When the word device value meets the specified value
A trigger occurs when the data that match the specified value are written
regardless of the current value status of the specified device (match or not
match with the specified value).
"Write": When data are written to a word device
A trigger occurs when data are written
Set a radix of the condition value for the word device.
Set a condition value.
Enter the program name of the specified step No.
Enter a step number of the step set as a trigger.
Set an execution condition.
Select this to set a trigger to occur when the trigger logging set instruction in the
program is executed.
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.
Description
*1
to the specified device.
Setting range

• For bit device:
"PLS", "PLF"
• For word device:
"=", "Write"
*1
,
DEC or HEX
• Decimal: -32768 to 32767
• Hexadecimal: 0 to FFFF
H
Eight alphanumeric
characters or less
0 to 266240
"Always",
"ON",
"OFF",
"PLS",
"PLF"


H