IDEC SmartRelay functions
119
IDEC SmartRelay Manual
4.2.6 NOR (not OR)
Symbol in IDEC SmartRelay:
Circuit diagram of a series circuit with
several normally closed contacts:
The output status of the NOR is only 1 if all inputs are 0, i.e.
if switched off. The NOR output is set to 0 when one of the
inputs is switched on (logical 1 status).
At an unused block input (x): x = 0.
Table of the NOR logic
1234Q
00001
00010
00100
00110
01000
01010
01100
01110
10000
10010
10100
10110
11000
11010
11100
11110
Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com
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