KEYENCE DL-EP1 - Manual (Page 61)

3-4 Message Communication
3-31
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- EtherNet/IP Compatible Network Unit DL-EP1 User’s Manual (IL) -
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 3: ID number 1 to ID number 4
Bit 4 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 - -
DWORD Bit string: 32 bits - -
STRING
Character string
(2-byte length information +
1-byte array per character)
- -