Not Equal Check For Real Signals Ner - ABB RELION 630 Series Technical Manual

1MRS757256 F
3.32.1.21
PML630/Compact Load-Shedding Solution
Technical Manual
If INT_IN1 ≤ INT_IN2, OUTPUT = 1, else OUTPUT = 0.
Logic function blocks do not have the hysteresis feature. Oscillating
outputs should be avoided when comparing analog signals that have
very closely varying values.
Signals
Table 164: LEI Input signals
Name Type
INT_IN1 INTEGER
INT_IN2 INTEGER
Table 165: LEI Output signals
Name Type
OUTPUT BOOLEAN

Not equal check for real signals NER

Function block
GUID-78EF1BC5-7202-42CF-8EFC-7D1A9E7DDB1D V1 EN
Figure 95: Function block
Functionality
The function compares the real inputs REAL_IN1 and REAL_IN2 and activates the
binary output OUTPUT, if REAL_IN1 not equal to REAL_IN2.
If REAL_IN1 ≠ REAL_IN2, OUTPUT = 1, else OUTPUT = 0.
Logic function blocks do not have the hysteresis feature. Oscillating
outputs should be avoided when comparing analog signals that have
very closely varying values.
Signals
Table 166: NER Input signals
Name Type
REAL_IN1 REAL
REAL_IN2 REAL
Default Description
0 Integer input 1
0 Integer input 2
Description
Binary output
Default Description
0.0 Real input 1
0.0 Real input 2
Section 3
Basic functions
159