This DataTypeis an OptionSetthat represents the POWERLINK entry attributes. It is a subtype of OptionSet.Its values are defined in Table 27and the DataTypeis used for the Property PowerlinkAttributesin the VariableTypes PowerlinkArrayType(5.2.2) and PowerlinkVariableType(5.2.4).
Table 27– PowerlinkAttributes Values
|
Value |
Bit |
Abbreviation |
Description |
|
Const |
0 |
CONST |
Read access only, the value is not changing |
|
Read |
1 |
R |
Read access |
|
Write |
2 |
W |
Write access |
|
Input |
3 |
I |
Represents process input data, object can be used in PDO mapping |
|
Output |
4 |
O |
Represents process output data, object can be used in PDO mapping |
|
Store |
5 |
S |
Can be stored to non-volatile memory |
|
ValidOnReset |
6 |
VR |
Only valid after reset |
|
DefaultMapping |
7 |
DEF |
Variable is included in default mapping |
|
RPDO |
8 |
RPDO |
Variable may be mapped into receive PDO |
|
TPDO |
9 |
TPDO |
Variable may be mapped into transmit PDO |
The expressions in the column ‘Abbreviation’ are used in the OPC UA object definitions.
The Field CurrentReadof the Variables Attribute AccessLevelshall be contain the same value as the Field Readin the Variables Attribute PowerlinkAttributes.
The Field CurrentWrite of the Variables Attribute AccessLevelshall be contain the same value as the Field Writein the Variables Attribute PowerlinkAttributes.
Table 28– PowerlinkAttributes Definition
|
Attributes |
Value |
|
BrowseName |
PowerlinkAttributes |
|
Subtype of OptionSetdefined in OPC 10000-3. |
|