Reading the cb object table, Reading the cb object table -39 – KEYENCE CB-EP100 User Manual
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3-4 Message Communication
3-39
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- EtherNet/IP Network Unit CB-EP100 User’s Manual (LJ-V7000 Edition) -
Reading the attribute ID
Example) Excerpt from CB Object attribute ID
Data Type
The data type is defined in the EtherNet/IP specifications as follows:
Reading the CB Object Table
(1)
(2)
(3)
(4)
(5)
(6)
Service code
(hexadecimal)
Attribute ID
(hexadecimal)
Name
Description
Attribute
Data
Type
0EH
32DH
Measurement
value
OUT1
OUT1 measurement value (integer)
R
DINT
Item
Description
(1) Service code
Represents the Service code in hexadecimal notation.
(2) Attribute ID
Represents the attribute ID in hexadecimal notation.
(3) Name
Represents the attribute name.
(4) Description
Describes the attribute and represents the data to be read and the range of
parameters that can be set.
(5) Attribute
Represents the direction of services for the attribute ID.
R (Read): The parameter read service (Get_Attribute_Single,
Get_Attributes_All) can be used to read the attribute value.
W (Write): The parameter write service (Set_Attribute_Single) can be used
to write the attribute value.
(6) Data type
Represents the attribute data type.
Data Type
Description
Range
Minimum
Maximum
USINT
Unsigned 8-bit integer
0
255
INT
Signed 16-bit integer
-32768
32767
UINT
Unsigned 16-bit integer
0
65535
DINT
Signed 32-bit integer
-2147483648
2147483647
UDINT
Unsigned 32-bit integer
0
4294967295
WORD
Bit string: 16 bits
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-
DWORD
Bit string: 32 bits
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-
STRING
Character string
(2-byte length information +
1-byte array per character)
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