STL structure

[Tom749 0]

I have two examples of STL structure for Clock Pulse bit by two different programmers. The Clock pulse result is same each other.(0.1s/1s..etc...) But the STL structure and M addresses are different. What is the reason? Can you explain about that? Thanks for your help in advance.

[jrw 12]

Looks like one programmer likes LAD and one like STL Regardless the clock byte is programmed from here typically see pic

[Groo 7]

As jrw stated above,there is a clock byte available from within the CPU properties, you just need to enable it and select which marker byte (byte 0 is default) What I would so as standard to create single shots would be slightly different. L MB 0 == Clock Byte this scan L MB 1 == Clock Byte last scan XOW == Do an exclusive OR (only bits different remain ON) T MB 2 == One shots of changed bits L MB 0 T MB 1 == Update Clock Byte last scan Its slightly different in that it gives a one shot on every changed state so rising and falling edges rather than just rising edge. The clock memory bits are as follows Bit 0 M0.0 : 10Hz, 0.1s Bit 1 M0.1 : 5Hz, 0.2s Bit 2 M0.2 : 2.5Hz, 0.4s Bit 3 M0.3 : 2Hz, 0.5s Bit 4 M0.4 : 1.25Hz, 0.8s Bit 5 M0.5 : 1Hz, 1s Bit 6 M0.6 : 0.625Hz, 1.6s Bit 7 M0.7 : 0.5Hz, 2s So in the program I can use MB0 or MB1 bits as square pulse bits and MB2 as one shots, for example M 2.4 would give me a one shot every 400mS