0 1 00:00:21,130 --> 00:00:21,820 Hello. 1 2 00:00:21,840 --> 00:00:28,620 In this video we are going to learn SFTR-L shifting bit instruction sftr means 2 3 00:00:28,710 --> 00:00:29,160 right. 3 4 00:00:29,160 --> 00:00:35,190 So that means it is shifting bits to the right side SFTL means our left. 4 5 00:00:35,370 --> 00:00:37,860 So it is shifting bits to the left side. 5 6 00:00:37,920 --> 00:00:40,710 Initial device in which value is shifted. 6 7 00:00:40,860 --> 00:00:47,280 S and D means similar but the important point is here and one is length, length of the thought which 7 8 00:00:47,280 --> 00:00:51,090 is shifted and to number of bits forming group. 8 9 00:00:51,150 --> 00:00:55,900 And imagine you have a line and here boxes are coming. 9 10 00:00:55,950 --> 00:00:59,640 The products are coming and you are looking okay. 10 11 00:00:59,650 --> 00:01:01,110 This have a barcode. 11 12 00:01:01,110 --> 00:01:01,830 This okay. 12 13 00:01:01,830 --> 00:01:02,550 This is not. 13 14 00:01:02,550 --> 00:01:03,240 This is okay. 14 15 00:01:03,240 --> 00:01:04,440 This is not so. 15 16 00:01:04,560 --> 00:01:06,540 Each time if you wait here. 16 17 00:01:06,540 --> 00:01:12,210 If you are looking to these products are there any barcode or not. 17 18 00:01:12,270 --> 00:01:13,260 What will happen. 18 19 00:01:13,260 --> 00:01:14,840 This line will be stopped. 19 20 00:01:14,940 --> 00:01:15,780 A lot of times. 20 21 00:01:15,870 --> 00:01:20,420 Imagine that it is working or it is running very high speeds. 21 22 00:01:20,460 --> 00:01:23,910 So you need to separate them to the left or right. 22 23 00:01:23,910 --> 00:01:29,240 For example imagine this your mechanical system is like that that moment. 23 24 00:01:29,340 --> 00:01:32,640 What should you do without stopping the line. 24 25 00:01:32,640 --> 00:01:40,550 You need to separate these products that moment shifting bit instruction is going to help us. 25 26 00:01:40,620 --> 00:01:51,350 So let's create the one project in the ISPSoft and in here we will add a small project to Plc and 26 27 00:01:51,420 --> 00:01:54,540 we will understand how it is working. 27 28 00:01:54,720 --> 00:02:03,980 New project is created now let's say LD X0.0 28 29 00:02:03,980 --> 00:02:08,780 This is will be rising edge for example. 29 30 00:02:08,840 --> 00:02:11,690 This is just detecting 2. 30 31 00:02:12,110 --> 00:02:24,090 I will put here x0.0 detecting products and x0.1 detecting barcodes. 31 32 00:02:24,600 --> 00:02:27,990 And I will put here SFTR command. 32 33 00:02:28,230 --> 00:02:35,190 So what we need now for example x0.1 is detecting barcodes. 33 34 00:02:35,230 --> 00:02:39,070 So we will use x0.1 in here. 34 35 00:02:39,100 --> 00:02:40,160 It will help us. 35 36 00:02:40,180 --> 00:02:49,180 So how many products that we are going to detect in one just time or in the in this bits groups. 36 37 00:02:49,300 --> 00:02:57,310 For example in this example I will use for product and each time I will shift the bits one by one. 37 38 00:02:57,310 --> 00:03:01,990 And this is one and which bits is going to be one or zero. 38 39 00:03:01,990 --> 00:03:05,650 It will start from M to a.. 39 40 00:03:05,680 --> 00:03:06,580 This is okay. 40 41 00:03:06,580 --> 00:03:13,810 This is just very very small basic example I will go online and I will say okay the project is compiling 41 42 00:03:13,810 --> 00:03:23,120 now I will send it to simulator and we will check what will happen if m 20 42 43 00:03:23,160 --> 00:03:28,520 Will it be 0 or 1 or how it is going to be worked. 43 44 00:03:28,540 --> 00:03:34,700 First of all first product let's say it's OK it is with the barcode. 44 45 00:03:34,870 --> 00:03:42,470 So this is detected the barcode but you can say just said on this is with the barcode. 45 46 00:03:42,490 --> 00:03:57,130 The first product and set on this is finished and off and I will say release all and the second one 46 47 00:03:58,440 --> 00:04:01,260 I will say release X and Y. 47 48 00:04:01,560 --> 00:04:03,500 Again this is okay. 48 49 00:04:03,690 --> 00:04:08,400 And the second one will be not with barcode. 49 50 00:04:08,400 --> 00:04:21,650 So this should be set on again force and force and release and then third one will be set on and fourth 50 51 00:04:21,650 --> 00:04:30,270 set on and fourth release X and Y or release all yes. 51 52 00:04:30,540 --> 00:04:35,690 And the fourth one will be without barcode. 52 53 00:04:35,840 --> 00:04:50,380 Just set on get on and force release all yes force release x and y again. 53 54 00:04:50,390 --> 00:04:53,050 I'm clicking That's okay. 54 55 00:04:53,440 --> 00:04:57,580 So what we did we said just go online it 55 56 00:05:01,380 --> 00:05:06,080 one okay to not okay. 56 57 00:05:06,100 --> 00:05:08,510 Three okay and four not okay. 57 58 00:05:08,550 --> 00:05:14,820 So what we are waiting M 20 should be on M 21 should be off M22. 58 59 00:05:14,820 --> 00:05:18,390 Should be all and M 23 should be of. 59 60 00:05:18,510 --> 00:05:20,150 This is what we are waiting. 60 61 00:05:20,220 --> 00:05:26,310 And then I will go to device monitor table and I will create a new one monitor table and I will add from 61 62 00:05:26,310 --> 00:05:35,130 twenty adjust four device so you can see m20 is on M 21 is of M22 is on and M23 62 63 00:05:35,130 --> 00:05:43,330 is off this is how we are shifting the bits we are activating for example this two condition. 63 64 00:05:43,350 --> 00:05:45,320 So this is okay and this is okay. 64 65 00:05:45,330 --> 00:05:52,770 That moment we are activating the first bit and then it is working like this it is starting from here 65 66 00:05:53,100 --> 00:06:01,620 and on and it is shifting to the up upside so also it is the meaning of SFTR command. 66 67 00:06:01,620 --> 00:06:10,440 It is shifting to the right in the and you can see it shifted to the right on off on and off . 67 68 00:06:10,650 --> 00:06:14,150 So this is how SFTR command works. 68 69 00:06:14,310 --> 00:06:24,510 So you can you can just try SFTL command you can you can use and you can just 69 70 00:06:24,510 --> 00:06:37,970 do an exercise with yourself just put here SFTL and do similar things like me and just watch 70 71 00:06:37,970 --> 00:06:43,940 the results with the device monitor table and you can understand better how these instructions works 71 72 00:06:44,300 --> 00:06:47,240 and for this video I'm finished here. 72 73 00:06:47,240 --> 00:06:52,610 I hope this instruction is going to help you a lot in your projects because this is this is really really 73 74 00:06:52,610 --> 00:07:00,860 important instruction for the production lines for the Plc projects and I hope this video 74 75 00:07:00,860 --> 00:07:10,250 is help you to understand this instruction this is just really basic example but it helps to understand 75 76 00:07:10,250 --> 00:07:11,740 it professionally. 76 77 00:07:11,840 --> 00:07:13,730 See you again in the next video.