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01/17/2019
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7.5 Object 0x47, Device Level Ring (DLR)
The
Device level Ring Object
contains the status information for the DLR
protocol and enables the possibility for the use of an Ethernet ring topology. The
measuring system don’t support “supervisor” functionality
7.5.1 Common Services
Service Code
Service Name
Description
0x01
Get_Attributes_All
Returns the contents of all attributes. The
order corresponds to the Attr.-ID. According
to the data type the Low part is written first.
0x0E
Get_Attribute_Single
Returns the contents of the specified
attribute.
7.5.2 Class Attributes
No. Access
Name
Data type
Attribute Description
Default
1
Get
Revision
UINT
Revision of this object
0x0002
2
Get
Max Instance UINT
Maximum instance number of an object
currently created in this class level of the
device.
0x0001
3
Get
Number of
Instances
UINT
Number of object instances currently
created at this class level of the device.
0x0001
Table 16: Device Level Ring, Overview of the class attributes
7.5.3 Instance Attributes
Attr.-ID
Access
NV
Name
Data type
Description
Default Page
1
Get
V
Network
Topology
USINT
Current network
topology mode
-
2
Get
V
Network
Status
USINT
Current status of
network
-
10
Get
V
Active
Supervisor
Address
STRUCT
of:
IP and/or MAC address
of the active ring
supervisor
-
UDINT
Supervisor IP Address
-
ARRAY
of 6
USINTs
Supervisor MAC
Address
-
12
Get
V
Capability
Flags
DWORD
Describes the DLR
capabilities of the device
-
Table 17: Device Level Ring, Overview of the instance attributes