Interlocking logic interpretation

This post was last edited by jlshnlhj on 2023-3-20 12:13 From the "OR" gate (the input of OR is red, green, and the output is green, it is judged that red represents 0 and green represents 1. Condition 1: FALL-2014A and B are both lower than 9050 Condition 2: FALL-2015A and B are both lower than 9050 Condition 3: PT21001 three out of two interlocking conditions 4: PT21002 three out of two interlocking meets any of the above conditions, the interlocking action. Supplementary information on the second floor below, the narrative is too boring. However, the picture doesn't seem to be right. Is this a real-time data logic diagram? Green means 1 and red means 0? If it is a real-time data logic diagram, the "Reset" button output -- to -- the S terminal of RS, the connection is always green 1? It should be the same as the output line of HK2009BP. The button will automatically reset. When pressed, it is "1" and when released, it is "0". In addition, there is a "not" in front of the R terminal of RS. When the interlocking conditions are met, the input of RS is 1,1. If you look closely at this picture, you can see that there are a lot of problems. It probably hasn’t been used yet and it feels awkward.

I have been using interlocking logic for several years, and it looks awkward to me!

This post was last edited by jlshnlhj at 2023-3-20 17:20 Muzimu_l6NPQ published on 2023-3-20 15:52 I have used interlocking logic for several years, and it looks awkward to me! Are they all in "actual combat"? 1.P204B_STP has less input lines. 2.HK 2009BP and HK2009RN should set/reset each other. In fact, for the sake of unification, a switch + "not" gate is enough, marked as: ON: Interlock automatic ("Non" is followed by "0"), OFF: Interlock bypass. RS is not required to avoid inputs being "1" at the same time. 3. When interlocking in the picture, the RS input is always two "1"s. It is estimated that the actual logic behind the scenes is not like this, and this picture is just a "schematic diagram".

This post was finally edited by jlshnlhj at 2023-3-21 10:20 and added an alarm to facilitate interlocking traceability. According to the idea of ​​​​the original picture, add "non" before the S end of RS. The button is connected to the normally closed point. It opens when pressed and closes when released.