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 Sma
rtRelay
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
12Q
000
011
101
110
1Q
01
10
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