Mitsubishi Electric MELSEC iQ-R Series User Manual page 36

Precautions
When sampling file registers (R/ZR), select an item to use them in the file register setting in the CPU parameter.
If target file registers (R/ZR) do not exist at the time of sampling, intended values may not be sampled.
Do not change the file name or block number of a file register after the recording function starts running. Otherwise, the
recording function may not run normally and a recording result may not be reproduced properly.
■Labels that can be sampled
Labels are sampled in 32-word units.
Bit type (BOOL) and word type (WORD) in a program are calculated as 32 points in a word conversion; therefore, a label that
is not used in a program may be included in the sampling target.
When the label size is set to 32 points (words) or less, the set label size is sampled (the minimum is 4 points (words)).
Note that any labels cannot be specified individually.
Label name
*1*2
Global label
*2*3
Safety global label
*1
Local label
*3
Safety local label
*1*4
Module label
Standard/safety shared
*2*3
label
*1 Cannot be sampled when selecting "Safety Cycle Time" for "Sampling Method."
*2 When a device is assigned to a global label, safety global label, or standard/safety shared label, target data is treated as a device.
*3 Can be sampled when using a safety CPU.
*4 When a device (X, Y, or Un\G) is assigned to a module label, target data is treated as a device.
Precautions
When sampling a global label to which a file register (R/ZR) is assigned, do not change the file name or block number of the
file register after the recording function starts running. Otherwise, the recording function may not run normally and a recording
result may not be reproduced properly.
1 FUNCTIONS
34
1.1 Recording Function
Class
VAR_GLOBAL,
VAR_GLOBAL_RETAIN
VAR_GLOBAL
VAR, VAR_RETAIN, VAR_INPUT,
VAR_OUTPUT,
VAR_OUTPUT_RETAIN,
VAR_IN_OUT, VAR_PUBLIC,
VAR_PUBLIC_RETAIN
VAR, VAR_INPUT, VAR_OUTPUT,
VAR_IN_OUT, VAR_PUBLIC

VAR_GLOBAL
Size (word) Data type
■Simple data type
32
• Bit
• Word (signed)
32
• Double word (signed)
32
• Word (unsigned)
• Double word (unsigned)
• Float (single precision)
• Float (double precision)
• Time
• String
32
• Timer
• Retentive timer
32
• Counter
32
• Long timer
• Long retentive timer
• Long counter
■Array
■Structure