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10-5 Object Dictionary
Object Dictionary Area
The CAN application protocol over EtherCAT (CoE) is based on the object dictionary of the CAN application
protocol. All objects are assigned a 4-digit hex index and comprise the following areas.
Index
0000 hex to 0FFF hex
1000 hex to 1FFF hex
2000 hex to 2FFF hex
3000 hex to 5FFF hex
6000 hex to 9FFF hex
A000 hex to FFFF hex
Data type
The following data types are used by this profile.
Data type
Boolean
Unsigned 8
Unsigned 16
Unsigned 32
Integer 8
Integer 16
Integer 32
Visible string
390
Object Dictionary
Area
Data type area
CoE communications area
Manufacturer unique area 1
Manufacturer unique area 2
Device profile area
Reserved area
Abbreviation
Size
BOOL
1 bit
U8
1 byte
U16
2 bytes
U32
4 bytes
INT8
1 byte
INT16
2 bytes
INT32
4 bytes
VS
Description
Definition of data type
Definition of variables that can be used for all servers intended for
exclusive communications
Variables defined in common to all OMRON products
Variables defined on ZW series EtherCAT slaves
Unused (not supported)
Area reserved for use in the future
Range
true (1), false (0)
0 to 255
0 to 65535
0 to 4294967295
-128 to 127
-32768 to 32767
-2147483648 to 2147483647
ZW User's Manual
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