Mitsubishi Electric MELSEC iQ-R Series User Manual page 27

Device name (device)
*3
CPU buffer (U3En\G)
memory access
*3
(U3En\HG)
device
Link direct Link input (Jn\X)
device
Link output (Jn\Y)
Link relay (Jn\B)
Link register (Jn\W)
Link special relay
*2
(Jn\SB)
Link special register
*3
(Jn\SW)
*1 Multiple of 512 for a bit device and 32 for a word device
If a bit device of which the number of points can be changed satisfies the following condition, the number of points will be a multiple of 64
including the start to end devices to be sampled (the size will be a multiple of 4 words): the number of points other than a multiple of 512
is set for the device or the numbers for the start and end devices to be sampled are other than a multiple of 512.
If a word device of which the number of points can be changed satisfies the following condition, the size will be a multiple of 4 including
the start to end devices to be sampled (the size will be a multiple of 4 words): the number of points other than a multiple of 32 is set for
the device or the numbers for the start and end devices to be sampled are other than a multiple of 512.
(Example) Setting an M to 64 points in the device setting in the CPU parameter
The size will be 64 points from M0 to M63 (four words) if 'LD M1' is specified in a program.
(Example) Setting a D to 36 points in the device setting in the CPU parameter
The size will be 36 points from D0 to D36 (36 words) if 'MOV D2 D33' is specified in a program.
*2 When the number of device points set in the CPU parameter is 512 points or less, the set number of points is sampled (the minimum is
64 points (bits)).
*3 When the number of device points set in the CPU parameter is 32 points or less, the set number of points is sampled (the minimum is 4
points (words)).
Precautions
When sampling file registers (R/ZR), set 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
Label name Class
*2
Global label VAR_GLOBAL,
VAR_GLOBAL_RETAIN
Local label VAR, VAR_RETAIN
*3

Module label
*1 Multiple of 32
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 words or less, the set label size is sampled (the minimum is 4 words).
*2 When a device is assigned to a global label, target data is treated as a device.
*3 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 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.
Number of Size (word)
*1
points
32 32
32 32
*2
512 32
*2
512 32
*2
512 32
*3
32 32
512 32
32 32
Size (word)
32
32
32
Remarks








*1
Remarks
Global labels cannot be specified individually.
Local labels cannot be specified individually.
Module labels cannot be specified individually.
1 FUNCTIONS
25
1.1 Recording Function
1