Mitsubishi Electric MELSEC iQ-R Series User Manual page 353

Command explanations
Item
Class attribute
Class service
Instance attribute
Instance service
*1 A class possesses the basic information such as the revision and instance of the object.
*2 An instance possesses the information of each object such as its functions and data.
■Access
This item indicates whether reading and writing using instance services are allowed.
• Get: Reading is possible with services such as Get_Attribute_Single.
• Set: Writing is possible with services such as Set_Attribute_Single.
■Data type
Item Description
BOOL Bit data
SINT Signed 8-bit data
INT Signed 16-bit data
DINT Signed 32-bit data
USINT Unsigned 8-bit data
UINT Unsigned 16-bit data
UDINT Unsigned 32-bit data
ULINT Unsigned 64-bit data
REAL Single-precision floating point real
number
LREAL Double-precision floating point real
number
STRING Character string data
SHORT_STRING Character string size + character string
*1
data
BYTE Bit string (8 bits)
WORD Bit string (16 bits)
DWORD Bit string (32 bits)
Padded EPATH CIP path segment
*1 The size of the obtained character string is set to the beginning of a character string as USINT-type one byte.
■Setting value (Set)/stored value (Get)
When Get access is available, the setting value (Set)/stored value (Get) can be read from the CC-Link IE TSN Plus module.
When Set access is available, the setting value (Set)/stored value (Get) can be set on the CC-Link IE TSN Plus module.
Description
Data possessed by the class of an object.
Service performed by specifying a class.
Data possessed by the instance of an object.
Service performed by specifying an instance.
Data size
1 byte
1 byte
2 bytes
4 bytes
1 byte
2 bytes
4 bytes
8 bytes
4 bytes
8 bytes
Depends on the
number of characters.
Depends on the
number of characters.
Number of characters +
1 byte
1 byte
2 bytes
4 bytes
4 bytes
14 MESSAGE COMMUNICATION SUPPORT COMMANDS
*1
*1
*2
*2
Range
• 0: Off (False)
• 1: On (True)
-128 to 127
-32768 to 32767
-2147483648 to 2147483647
0 to 255
0 to 65535
0 to 4294967295
0 to 18446744073709551615
E  1.17549435 - 38 to E  3.40282347 + 38
E  2.2250738585072014 - 308 to E  1.7976931348623157 + 308
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