Section 5 1MRS240173-IB B
4x Registers
30 REF615R
DPU2000R Modbus Point List Mitigation Manual
c. If the primary PT rating is 20KV, to get the primary voltage reading in KV, fill in five
into the "Min In" column. It is because the original signal's scale factor is already 100.
Thus, 20 (1/5*100 = 20) will be UDR's value's effective scaling. (It eventually
multiplies voltage per unit reading by 20).
Figure 4: UDR divisor scaling factor to convert a voltage reading from pu to
primary KV
5.1.2 System Status/Configuration Block
REF615R keeps as many status registers in DPU2000R as possible for the purpose of self
diagnostics. The mappings for some registers without direct IEC 61850 paths, such as
"heart beat", are implemented by software. Some registers in DPU2000R mapped for its
obsolete hardware or device configurations are reserved as blanks.
Table 11: Mitigations of Modbus system status/configuration block
If the original signal is mapped into 32 bit, the UDR shall keep it as 32 bit
register by leaving the next register as "Empty Register".
DPU2000R
register
addr.
DPU 2000R description Scale
REF615R
register addr.
Scale IEC 61850 path
Comments on REF615R
Modbus points mapping
40129:0 Self test status 40129:0 Self test status
40129:1 contact input changed 40129:1 contact input changed
40129:2 local settings changed N/A in REF615R
40129:3 remote edit disable 40129:3 remote edit disable
40129:4 Alternate 1 Settings Active 40129:4 Alternate 1 Settings
Active
40129:5 Alternate 2 Settings Active 40129:5 Alternate 2 Settings
Active
40129:6 New Fault Recorded 40129:6 New Fault Recorded
40129:7 Control Power Cycled 40129:7 Control Power Cycled
40129:8 New Operation recorded 40129:8 New Operation recorded
40129:9 New peak demand value 40129:9 New peak demand value
40129:10 New minimum demand value 40129:10 New minimum demand
value
40129:11 Momentary changes 40129:11 Momentary changes
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