Target Data - Mitsubishi Electric MELSEC-L Series User Manual

6.1

Target Data

The target data is device memory data in the CPU module, which is saved on an SD memory card with time stamp.
(1) Data type
The following data types can be specified for data logging of the device memory.
Data type
Bit
Word (unsigned)
Double word (unsigned)
Word (signed)
Double word (signed)
*1 The specified size ranges from 1 to 256.
The number of points is calculated for each setting No. and the total number of points is used.
Ex.
In the following case, the total number of points is eight.
• Setting No.1 Data type (String), specified size (1) → 1 point
• Setting No.2 Data type (String), specified size (5) → 3 points
• Setting No.3 Data type (Double precision real number) → 4 points
(2) Devices available for sampling
The following lists the devices whose data can be specified as sampling data.
Type
Bit device
Word device
*1 The built-in I/O function does not support the U \G specification.
*2 Digit specification of bit device is available only for K1 to K8.
*3 T (contact), ST (contact), and C (contact) are specified with TS, SS, and CS respectively.
*4 T (coil), ST (coil), and C (coil) are specified with TC, SC, and CC respectively.
For the above devices (except for FX, FY, FD, BL \S, and bit specification of word device), index modification
can be specified although indirect specification is not allowed.
50
Number of device points
1
1
2
1
2
X (DX), Y (DY), M, L, F, SM, V, B, SB, T (contact)
FX, FY, BL \S
Bit specification of word device:
D, D (extended data register), SD, W, W (extended link register), SW, R, ZR, FD, U \G
T (current value), ST (current value), C (current value), D, D (extended data register), SD, W, W (extended link
register), SW, R, Z, ZR, FD, U \G
*2
Digit specification of bit device : X, Y, M, L, F, SM, V, B, SB, BL \S
Data type
Single precision real
number
Double precision real
number
String
Raw
Description
*3 *4
, T (coil) , ST (contact)
*1
Number of device points
2
4
*1
Specified size/2
*1
Specified size/2
*3 *4 *3
, ST (coil) , C (contact) , C (coil)
*1
*4
,