IDEC FL1E SmartRelay - Manual (Page 134)

IDEC SmartRelay functions
120 IDEC SmartRelay Manual 
4.2.7 XOR (exclusive OR)
The XOR in a circuit diagram,
shown as series circuit with 2
changeover contacts:
Symbol in IDEC
SmartRelay:
The output status of the XOR is 1 if the inputs are not
equivalent.
At an unused block input (x): x = 0.
XOR function logic table
4.2.8 NOT (Negation, Inverter)
A normally closed contact in
the circuit diagram:
Symbol in IDEC
SmartRelay:
The output status is 1 if the input is 0. The NOT block inverts
the input status.
Advantage of the NOT block, for example: IDEC SmartRelay
does not require normally closed contacts. You simply use a
normally open contact and the NOT block to convert these
into a normally closed contact.
NOT function logic table
1 2 Q
0 0 0
0 1 1
1 0 1
1 1 0
1 Q
0 1
1 0