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LOGIC 0 AND 1

Created by: Suleman Jamil at: 10/4/2013 4:08 PM (7 Replies)

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10/4/2013 4:08 PM	Rate (0)
Suleman Jamil Posts: 8 Rating: (0)	Hoping all of u are fine and good in health friends kindly tell me about the beloow network for logic 0 and 1 . i am new to plc programming. A "LOG 0" M1.0 -- LOGIC 0 AN "LOG 0" M1.0 -- LOGIC 0 = "LOG 0" M1.0 -- LOGIC 0 = "COM0" M1.2 O "LOG 1" M1.1 -- LOGIC 1 ON "LOG 1" M1.1 -- LOGIC 1 = "LOG 1" M1.1 -- LOGIC 1 = "COM1" M1.3
Suleman Jamil Posts: 8 Rating: (0)
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10/4/2013 4:27 PM	Rate (1)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 12/24/2025 Posts: 12472 Rating: (2722)	Hello Suleiman; For some specific logic you need dediacated bits that are constant "1" or constant "0". For example, you might want to disable a compete network temporarily for test purposes, the easiest way to do that (without erasing the network) is to insert an Always_OFF bit as the first bit evaluation on the network. The logic shown in your example implements an Always_ON bit and an Always_OFF bit, for later use in the program. Hope this helps, Daniel Chartier
	Last edited by: dchartier at: 10/4/2013 4:27 PM
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10/4/2013 4:35 PM	Rate (0)
Suleman Jamil Posts: 8 Rating: (0)	Dear dchartie thankyou very much u r the first one who reply on thin forumn once again thaking you and in future i hope u guide me
Suleman Jamil Posts: 8 Rating: (0)
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10/4/2013 4:43 PM	Rate (1)
Ste39 Posts: 4620 Rating: (710)	Hi Suleman, this logic is usually used to keep always zero (LOGIC 0) and always to one (LOGIC 1) something in the program. In fact, if you look at the LOGIC 0A then AN= LOGIC 0 that means in series and O then ON = LOGIC 1 which means in parallel.
Ste39 Posts: 4620 Rating: (710)
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10/4/2013 4:47 PM	Rate (0)
Suleman Jamil Posts: 8 Rating: (0)	HY THANKS AND IT REAALY HELP CAN U TELL ME THE DIFFRENCE BETWEEN THE BELOW TWO INSTRUCTION 1) A AND 2) A( AND WITH NESTED I M LITTLE CONFUSE B/W THESE TWO INSTRUCTIONS
Suleman Jamil Posts: 8 Rating: (0)
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10/4/2013 4:56 PM	Rate (0)
Ste39 Posts: 4620 Rating: (710)	Hi Suleman, go to page 15 for A and 22 for A( (AWL) für S7-300/400 - Siemens Industry Online Support
Ste39 Posts: 4620 Rating: (710)	Last edited by: Ste39 at: 10/4/2013 5:16 PM
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10/4/2013 5:09 PM	Rate (0)
Ste39 Posts: 4620 Rating: (710)	Hi Suleman, if you need more information move in the right conference as Industrial Software that you find in the branch to the left, maybe some other expert could help you. This isa LOGO! conference
Ste39 Posts: 4620 Rating: (710)
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This contribution was helpful to 1 thankful Users Suleman Jamil

10/9/2013 9:43 AM	Rate (0)
O_Moderator Diamond Member Joined: 4/24/2009 Last visit: 8/20/2024 Posts: 2682 Rating: (135)	Hello together, i now transferred this thread to the right conference. Please you use the inform moderators function the next time you find threads published in the wrong conference. Best regards O_Moderator
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