3-30 UR FAMILY – COMMUNICATIONS GUIDE
MODEL IMPLEMENTATION CONFORMANCE STATEMENT (MICS) CHAPTER 3: IEC 61850 COMMUNICATION
3
Table 3-8: Typical Quality data attribute values in UR devices
Many of the UR family device elements have multiple instances, and in many cases the number of instances depends on
the product or the device's order code. Also, many UR elements have operands and/or settings that are repetitive, such as
for every phase, or for every step. Again for brevity, in the following information model outline a template representing
multiple logical nodes or multiple data objects is often used. These templates are identified with a Greek or punctuation
character, such as γ or #, in the logical node/data object name. In a UR device, the template is instantiated multiple times
with the punctuation or Greek character replaced with the appropriate instance number or instance identifier.
The R/W/C column in the following tables is coded as follows:
• R — Value of the data object or data attribute is readable via MMS services
• W — Value of the data object or data attribute is writable via MMS services
• C — Value of the data object or data attribute is configurable via SCL file download
• Ctrl — The data object can be controlled via MMS services
The logical nodes implemented in UR devices since version 7.30 are sorted into six logical devices. The table outlines the six
logical devices and the general rules for the fixed assignment of logical nodes to them. Each logical device has a section in
this chapter that defines the logical nodes implemented for that logical device. In UR 7.40 and later, new LDevice elements
other than those originally in the Master logical device can be moved between LDevice elements, and LDevice elements
containing no LN elements can be removed.
Table 3-9: Logical devices
3.5.1 Master (root) logical device
The Master logical device contains communications-related logical nodes, including GOOSE, reports, log, and virtual inputs.
Containing
logical node's
Beh.stVal
Any minor
error
(FlexLogic
operand)
q.
validity
q.
test
q.
detailQual
q.
source
q.
operatorblocked
on Off good false 0 process false
on On questionable false 0 process false
on-blocked any invalid false 0 process true
test Off good true 0 process false
test On questionable true 0 process false
test/blocked Off invalid if ANY
MAJOR ERROR,
else good
true 0 process false
test/blocked On invalid if ANY
MAJOR ERROR,
else questionable
true 0 process false
off any invalid false 0 process false
Logical device Contains logical nodes modeling...
Master communications, including GOOSE, reports, Remote I/O, Direct I/O, Virtual Inputs, Modbus, DNP, and so on.
Setting group control.
This is the root logical device.
Protection (Prot) protection functions
Control (Ctrl) control and monitoring functions
System power system devices: breakers, switches, CTs, VTs, and so on, including interface to these such as AC inputs,
contact I/O, transducer I/O, HardFiber I/O
Metering (Meter) metering and measurement (other than PMU), including Signal Sources
General (Gen) FlexLogic, virtual outputs, non-volatile latches, FlexElements, FlexMath, recording (for example oscillography),
security, front panel, clock
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