IDEC SmartRelay functions
213
IDEC SmartRelay Manual 
4.4.26 Analog multiplexer
Short description
This special function outputs one of four predefined analog 
values or 0 at the analog output.
Symbol in
IDEC SmartRelay
Wiring Description
Input En A change in status from 0 to 1 
at input En (Enable) switches 
a parameterized analog value 
to the output AQ, depending 
on the value of S1 and S2.
Inputs S1 
and S2
S1 and S2 (selectors) for 
selecting the analog value to 
be issued.
• S1 = 0 and S2 = 0:  
Value 1 is issued
• S1 = 0 and S2 = 1:  
Value 2 is issued
• S1 = 1 and S2 = 0:  
Value 3 is issued
• S1 = 1 and S2 = 1:  
Value 4 is issued
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