CHAPTER 3: IEC 61850 COMMUNICATION
MODEL IMPLEMENTATION CONFORMANCE STATEMENT (MICS)
UR FAMILY – COMMUNICATIONS GUIDE
3-31
3
The logical devices in UR family devices are arranged in a hierarchy, with the Master logical device as the root logical
device and all other implemented logical devices direct descendants. The effect of this arrangement is that the scope of
certain items in the Master logical device includes the entire hierarchy, as outlined in the following table.
Table 3-10: Master/root data objects and attributes
3.5.1.1 Event recorder (EvtRcd)
See LLN0.
3.5.1.2 Logical node zero (LLN0)
LLN0 is instantiated in all UR family devices.
The following is specific to the Master logical device. LLN0 in other logical devices have different content.
Table 3-11: Logical node zero data objects
Name
Description
Mod
The controllable data object Mod controls the test mode selection of the UR device and thus affects the status of Beh
data objects and of q data attributes
configRev
The configurable data attribute configRev has a scope that includes the entire UR device.
Modify this attribute whenever any logical node gets a new semantic use, for example an instance of a CSWI is now
serving a different physical switch or an instance of a logical node PDIS is now used for another zone.
Also modify this attribute whenever any data object gets a new semantic use, for example the use of ConInGGIO.Ind1
changes from "Door open" to "Fire alarm".
As it is not in general possible for the device to know that such a change has occurred, you need to revise the value of
configRev.
paramRev
The configurable data attribute paramRev has a scope that includes the entire device, and thus is modified whenever
any setting in the device changes. The UR increments the value of paramRev by one whenever one or multiple setting
changes occurs in one Modbus write request by any means (front panel, Modbus, or MMS) other than by SCL file
download. Incrementing occurs whether or not the setting is represented in the information model. When a UR device
or EnerVista UR Setup accepts an SCL file, paramRev is set to the value in that SCL file. When EnerVista UR Setup
changes one or more settings, and prepares an SCL file, it increments paramRev to the next higher multiple of 10 000.
SCGB
The setting group control block in the Master logical device has a scope that includes the entire device due to the UR
logical device hierarchy. That is to say, all grouped settings are controlled form this one control block.
LNName: LLN0
LDevice inst: Master
UR element: Nameplate information for the logical nodes
data obj. data attribute
Type
FC UR Name
Description
R/W/C
Beh
ENS
This logical device’s behaviour
R
stVal
ENUMERATED
ST
R
stVal
ENUMERATED
ST LLN0.Beh.stVal of the Master
logical device
R
Health
ENS
Only instantiated in the Master logical
device
R
stVal
ENUMERATED
ST LPHD1.PhyHealth.stVal
R
On
SPS
Only instantiated in the Master logical
device
R
stVal
BOOLEAN
ST
R
Off
SPS
Only instantiated in the Master logical
device
R
stVal
BOOLEAN
ST
R
Zero
MV
Only instantiated in the Master logical
device
R
mag
AnalogueValue MX
R
mag.f
FLOAT32
0.0
R
Mod
ENC
Only instantiated in the Master logical
device
R/Ctrl
ctlVal
ENUMERATED
R
stVal
ENUMERATED
ST
R
ctlModel
CtlModels
CF LLN0.Mod.ctlModel
2, the code for SBO control with normal
security according to IEC 61850-7-2.
R/C
sboTimeout
INT32U
CF
30000
R
sboClass
SboClasses
CF
0 (operate-once)
R