2
IM 04L4B0-8E
Data Type
For a PLC, you can specify the type of read or write data using a file number or tag
name in a command. However, the data type is fixed to INT16 for commands "PLC2
Unprotected Read/Write" and "PLC5 Word Range Read/Write."
On the other hand, the data types on the DX are determined as shown in the following
section, "Data on the DX". For values to be used when the data type specified for a
PLC in a command is different from the type of data on the DX, see "Communication
Considerations" (on Page 14).
Data on the DX
Data Count
The data count on the DX is as follows:
Model
Measurement
channel
Computation
channel
Communication
input data
External input
channel
Count Number
Count
Number
Count Number
Count Number
DX002
2
00 – 002 2
0 – 2 24
C01 – C24
-
-
DX004
4
00 – 004
DX1006
6
001 – 006
24
0 – 24
DX02
2
00 – 02
DX2004
4
00 – 004 2
0 – 2
60
C01 – C60
DX2008
8
00 – 008
DX200
0
00 – 00
60
101 – 160
240
20 – 440
DX2020
20
00 – 020
DX200
0
00 – 00
DX2040
40
00 – 040
DX2048
48
00 – 048
Data Type
The data types on the DX are shown in the following table:
Data
Data type
Remarks
Measurement
channel data
INT16
16-bit signed integer
To acquire a physical value, it is
necessary to obtain the decimal
place and unit information in
advance.
Computation
channel data
INT2
2-bit signed integer
Communication
input data
FLOAT
2-bit floating-point
number
-
External input
channel data
INT16
16-bit signed integer
To acquire a physical value, it is
necessary to obtain the decimal
place and unit information in
advance.
Explicit Message