14.13.2
Functionality
The current and voltage measurements functions (CVMMXN, CMMXU, VMMXU
and VNMMXU), current and voltage sequence measurement functions (CMSQI and
VMSQI) and IEC 61850 generic communication I/O functions (MVGGIO) are
provided with measurement supervision functionality. All measured values can be
supervised with four settable limits: low-low limit, low limit, high limit and high-high
limit. The measure value expander block MVEXP has been introduced to enable
translating the integer output signal from the measuring functions to 5 binary signals:
below low-low limit, below low limit, normal, above high limit or above high-high
limit. The output signals can be used as conditions in the configurable logic or for
alarming purpose.
14.13.3
Function block
MVEXP
RANGE*
HIGHHIGH
HIGH
NORMAL
LOW
LOWLOW
IEC09000215-1-en.vsd
IEC09000215 V1 EN
Figure 259:
MVEXP function block
14.13.4
Signals
Table 411:
MVEXP Input signals
Name
Type
Default
Description
RANGE
INTEGER
0
Measured value range
Table 412:
MVEXP Output signals
Name
Type
Description
HIGHHIGH
BOOLEAN
Measured value is above high-high limit
HIGH
BOOLEAN
Measured value is between high and high-high limit
NORMAL
BOOLEAN
Measured value is between high and low limit
LOW
BOOLEAN
Measured value is between low and low-low limit
LOWLOW
BOOLEAN
Measured value is below low-low limit
14.13.5
Settings
The function does not have any parameters available in Local HMI or Protection and
Control IED Manager (PCM600).
Section 14
1MRK 502 048-UEN A
Monitoring
550
Technical manual
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