ABB RELION REX640 - 3.22.8.3 Signals; 3.22.9 Real maximum value selector MAX3 R; 3.22.9.1 Function block; 3.22.9.2 Functionality

Equal region
Lesser than region
REAL_IN2+TOLR
Min -2097152.000
REAL_IN2
Figure 183: Region of LER comparison
3.22.8.3 Signals
Table 329: LER Input signals
Name Type Default Description
REAL_IN1 FLOAT32 0 Real input 1
REAL_IN2 FLOAT32 0 Real input 2
TOLR FLOAT32 0 Tolerance for compar-
ison
Table 330: LER Output signals
Name Type Description
OUT BOOLEAN Output value
3.22.9 Real maximum value selector MAX3R
3.22.9.1 Function block
Figure 184: Function block
3.22.9.2 Functionality
The real maximum value selector function MAX3R selects the maximum value from
three analog values. Disconnected inputs and inputs whose quality is bad are
ignored. If all inputs are disconnected or the quality is bad, MAX3R output value
is set to –2
21
.
1MRS759142 F
Basic functions
REX640
Technical Manual
307