Less Than Or Equal Check For Real Signals Ler; Less Than Or Equal Check For Integer Signals Lei - ABB RELION 630 Series Technical Manual

Section 3
Basic functions
3.32.1.19
3.32.1.20
158

Less than or equal check for real signals LER

Function block
GUID-B38B55AC-0F56-4913-B12D-79A5008B21A2 V1 EN
Figure 93: Function block
Functionality
The function compares the real inputs REAL_IN1 and REAL_IN2 and activates the
binary output OUTPUT, if REAL_IN1 is less than or 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 162: LER Input signals
Name Type
REAL_IN1 REAL
REAL_IN2 REAL
Table 163: LER Output signals
Name Type
OUTPUT BOOLEAN

Less than or equal check for integer signals LEI

Function block
GUID-94643564-E98F-4CA2-A6F0-3A277253E011 V1 EN
Figure 94: Function block
Functionality
The function compares the integer inputs INT_IN1 and INT_IN2 and activates the
binary output OUTPUT, if INT_IN1 is less than or equal to INT_IN2.
Default Description
0.0 Real input 1
0.0 Real input 2
Description
Binary output
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