List the different Types of logic block algorithms or logic gates used in Programmable Logic Controllers (PLC) programming in industries.’
Types of logic block algorithms ( logic gates)
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Null (NULL)
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AND Gate (AND)
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OR Gate (OR)
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NOT Gate (NOT)
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NAND Gate (NAND)
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NOR Gate (NOR)
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XOR Gate (XOR)
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Qualified OR Gate with 2 inputs On (QOR2)
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Qualified OR Gate with 3 inputs On (QOR3)
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Compare Equal with Deadband (EQ)
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Compare Not Equal with Deadband (NE)
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Compare Greater then with Deadband(GT)
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Compare Greater then or Equal with Deadband(GE)
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Compare Less then with Deadband(LT)
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Compare less then or Equal with Deadband(LE)
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Check for Bad(CHECKBAD)
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Fixed size bulse(PULSE)
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Pulse with maximum Time Limit(MAXPULSE)
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Pulse with Minimum Time Limit(MINPULSE)
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Delay(DELAY)
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On Delay(ONDLY)
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Off Delay(OFFDLY)
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Watchdog Timer(WATCHDOG)
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Flipflop(FLIPFLOP)
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Change Detect(CHDETECT)