Signals; Real Less Than Or Equal Comparator Ler; Function Block; Functionality - ABB RELION REX640 Technical Manual

1MRS759142 C
3.22.7.3
3.22.8
3.22.8.1
3.22.8.2
REX640
Technical Manual

Signals

Table 303: GER Input signals
Name Type
REAL_IN1 FLOAT32
REAL_IN2 FLOAT32
TOLR FLOAT32
Table 304: GER Output signals
Name
OUT

Real less than or equal comparator LER

Function block

GUID-A9400EB0-186D-487B-A30A-1268FD438E86 V1 EN
Figure 159: Function block

Functionality

The real less than or equal comparator function LER compares real input REAL_IN1
with real input REAL_IN2 and activates binary output OUT if REAL_IN1 is equal to
or less than REAL_IN2 + TOLR or less than REAL_IN2 input. That is, if
REAL_IN1≤ (REAL_IN2 + TOLR) or REAL_IN1 < (REAL_IN2), OUT = 1, else
OUT = 0.
LER function blocks do not have the hysteresis feature. Oscillating
outputs should be avoided when comparing analog signals that have
closely varying values.
Default
0
0
0
Type
BOOLEAN
Section 3
Basic functions
Description
Real input 1
Real input 2
Tolerance for
comparison
Description
Output value
285