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8903/IM 8903/IP Ethernet Communications Interfaces
DSE Data Types
Data Type
Description
Range
LOGIC
Logic
False (F) and True (T)
INTEGER
32-bit signed integer
-2,147,483,648 to 2,147,483,647
VALUE
32-bit fixed point value
-32768.0 to 32767.9999
Ethernet Data Types
Data Type
Description
Range
Bytes Used
SINT16
16-bit signed integer
-32,768 to 32,767
2
SINT32
32-bit signed integer
-2,147,438,648 to
2,147,483,647
4
UINT16
16-bit unsigned integer
0 to 65,535
2
USINT32
32-bit unsigned integer
0 to 4,294,967,295
4
FLOAT
32-bit IEEE-754 floating-point
value
1.19209290e-38 to
3.438
4
Conversion of DSE Type < > Ethernet Type
The DSE fieldbus connectors are each assigned an Ethernet "Type" as described in "Step 1.3 :
Configuring the Fieldbus Connectors" on page 11.
The conversion between the DSE type and the PLC type is performed automatically (refer to
Appendix B : DSE/Ethernet Conversion Rules, page 29).
Any PLC type can be assigned to a fieldbus connector.
