22
CANopen
HBM
QuantumX
6
CX27 object specifications
Possible SDOs for the Gateway are described in this chapter (name, description, value
range, data type, index/sub-index)
Index
The index gives the position of the object in the object dictionary. The index value
specification is hexadecimal. The values for the DS404 device profile are located from
address 0x6xxx.
Object code
The object code indicates the data structure of the object.
Object code
Meaning
Coding
VAR
A simple value, of the Integer8, Unsigned32 or Visible String8
type, for example.
7
ARRAY
A data field, where every entry is of the same data type.
8
RECORD
A data field containing entries that are a combination of simple
data types.
9
Data type
Value range
Data length
Boolean
0 = false, 1 = true
1 byte
INT8
−
128 to +128
1 byte
INT16
−
32768 to +32768
2 bytes
INT32
−
2147483648 to +2147483648
4 bytes
UINT8
0 to 255
1 byte
UINT16
0 to 65535
2 bytes
UINT32
0 to 4294967295
4 bytes
Visible String8
ASCII characters
8 bytes
Visible String16
ASCII characters
16 bytes
Access
ro:
Read only
rw:
Read/write
wo:
Write only
PDO mapping
PDO mapping is understood to be the mapping of application objects (real-time data) from
the object dictionary to process data objects. CANopen device profiles provide default
mapping for every device type, which is suitable for most applications.
Содержание CX27
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