Reading the dl object table, Reading the dl object table -30, 4 message communication 3-30 – KEYENCE DL-EP1 User Manual
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- EtherNet/IP Compatible Network Unit DL-EP1 User’s Manual (FD-MH) -
3-4 Message Communication
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Reading the attribute ID
Example) Excerpt from DL Object attribute ID
Data Type
The data type is defined in the EtherNet/IP specifications as follows:
Reading the DL Object Table
(1)
(2)
(3)
(4)
(5)
(6)
Instance
ID
Attribute
ID
Name
Description
Attribute
Data
Type
00H
74H
(116)
Output
1
Stores the HIGH output (output 1) status of each
sensor amplifier. When HIGH is output, the bit
corresponding to the ID number of the sensor
amplifier is set to ON.
Bit 0 to bit 9 ID number 1 to ID number 10
Bit10 to bit 15: Reserved for system
R
WORD
Item
Description
(1) Instance ID
Represents the instance ID in hexadecimal notation.
(2) Attribute ID
Represents the attribute ID in hexadecimal (decimal) 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
INT
Signed 16-bit integer
-32768
32767
UINT
Unsigned 16-bit integer
0
65535
DINT
Signed 32-bit integer
-2147483648
2147483647
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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