Shawn Member S Join Date Oct 2003 Posts 24 Nov 8, 2003 #1 Hi Masters, Does A-B SLC 500 PLC have any 1 second bits or 0.5 second bits? I'm using a dos version programming software, I can't find it. Thanks! Shawn
Hi Masters, Does A-B SLC 500 PLC have any 1 second bits or 0.5 second bits? I'm using a dos version programming software, I can't find it. Thanks! Shawn
Eric Nelson Lifetime Supporting Member + Moderator Join Date Apr 2002 Location Randolph, NJ Posts 4,346 Nov 8, 2003 #2 If you need EXACTLY 0.5 or 1 second, you'll have to roll your own with a timer or two. If you're just flashing a light or something, you can use the S:4/0 through S:4/15 bits: S:4/0 - 20ms S:4/1 - 40ms S:4/2 - 80ms S:4/3 - 160ms S:4/4 - 320ms S:4/5 - 640ms ...and so on. I won't bother typing them all. Notice the sequence?... These clock bits operate at a 50% duty cycle. For example, S:4/0 is ON for 10ms, and OFF for 10ms. beerchug -Eric
If you need EXACTLY 0.5 or 1 second, you'll have to roll your own with a timer or two. If you're just flashing a light or something, you can use the S:4/0 through S:4/15 bits: S:4/0 - 20ms S:4/1 - 40ms S:4/2 - 80ms S:4/3 - 160ms S:4/4 - 320ms S:4/5 - 640ms ...and so on. I won't bother typing them all. Notice the sequence?... These clock bits operate at a 50% duty cycle. For example, S:4/0 is ON for 10ms, and OFF for 10ms. beerchug -Eric
Shawn Member OP S Join Date Oct 2003 Posts 24 Nov 8, 2003 #3 That's what I need to know Thanks Eric! Shawn