IDEC SmartRelay functions
IDEC SmartRelay Manual 112
4.2 Basic functions list - GF
Basic functions represent simple logical elements of Bool-
ean algebra.
You can invert the inputs of individual basic functions, i.e. the 
circuit program inverts a logical “1” at a relevant input to a 
logical “0”; if “0” is set at the input, the program sets a logical 
“1”. A programming example is found in Chapter 
3.6.3.
The GF list contains the basic function blocks you can use 
for your circuit program. The following basic functions are 
available:
View in the circuit 
diagram
View in IDEC 
SmartRelay
Name of the basic 
function
Series circuit with 
normally open con-
tact
AND
(see page 114)
AND with Edge Detec-
tion 
(see page 115)
Parallel circuit with 
normally closed con-
tact
NAND  
(not AND)
(see page 116)
NAND with Edge Detec-
tion 
(see page 117)
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