0 1 00:00:21,700 --> 00:00:23,030 Hello in this video. 1 2 00:00:23,050 --> 00:00:26,350 We are going to learn serial communication plc programming. 2 3 00:00:26,380 --> 00:00:34,550 Example 2 in here we are writing hexadecimal86 value in D1120. 3 4 00:00:34,600 --> 00:00:38,090 So this is for communication protocol settings. 4 5 00:00:38,110 --> 00:00:39,440 And this is ASCII. 5 6 00:00:39,460 --> 00:00:46,720 9600 7 E 1 communication protocol settings set M1120 6 7 00:00:46,720 --> 00:00:54,790 equals to retain communication settings for COM2 for our Plc and we are resetting 7 8 00:00:54,790 --> 00:01:01,510 M1143 because we will use ASCII mode if we set this value this 8 9 00:01:01,840 --> 00:01:11,800 auxiliary relay bit so the communication protocol turns to RTU mode we are writing 300 decimal value 9 10 00:01:11,830 --> 00:01:19,870 to D1129 so D1129 equals to set 10 11 00:01:19,870 --> 00:01:28,420 value for data receive a receiving timeout as milliseconds it is equals to 300 millisecond our data 11 12 00:01:28,480 --> 00:01:34,880 receiving timeout value set value and D1129. 12 13 00:01:34,960 --> 00:01:45,130 So this data Register includes our plc communication address so we selected in here 17 for example 13 14 00:01:45,130 --> 00:01:49,660 for Plc communication address via com 2. 14 15 00:01:50,110 --> 00:02:00,460 So in here we are enabling M1350 and m1351 so link communication 15 16 00:02:00,490 --> 00:02:02,370 activates these ones. 16 17 00:02:02,530 --> 00:02:14,710 So why we are using timer99 and why we are waiting 3 second because after your complete system 17 18 00:02:14,740 --> 00:02:22,180 is energized or energization and the drives will be opened and the plc is going to be open but that 18 19 00:02:22,180 --> 00:02:27,560 moment for the communication complete system will be ready will be okay. 19 20 00:02:27,610 --> 00:02:35,840 So after first energy is activated drives and the plc and the other external devices and etc 20 21 00:02:35,840 --> 00:02:41,100 of which devices are added to the serial communication line should be ready. 21 22 00:02:41,200 --> 00:02:48,580 And this 3 seconds is waiting time of whole systems becomes okay or ready. 22 23 00:02:48,880 --> 00:02:57,280 So we will wait just a little bit time and the whole devices become ready after it became ready 23 24 00:02:57,310 --> 00:03:01,540 complete system we can start our communication. 24 25 00:03:01,540 --> 00:03:10,780 So because of this we are using timer99 as 3 second and after 3 seconds we are setting M1350 and 25 26 00:03:10,780 --> 00:03:13,460 M1351 26 27 00:03:13,540 --> 00:03:21,100 So enabling PLC LİNK and then enabling auto mode and in here in the first scan we are writing 27 28 00:03:21,520 --> 00:03:29,340 as hexadecimal 1000 address to D1355 28 29 00:03:29,740 --> 00:03:36,370 We are moving this address to here because we will read from this address how many data we are going 29 30 00:03:36,370 --> 00:03:39,100 to read 16 data we are going to read. 30 31 00:03:39,130 --> 00:03:49,980 So this number of read data is here we are going to read first station and this first station reading 31 32 00:03:49,980 --> 00:03:53,100 address is D1355 32 33 00:03:53,220 --> 00:03:58,920 And how many that are we are going to read the value inside of D1434 33 34 00:03:58,920 --> 00:03:59,490 d1434 34 35 00:03:59,790 --> 00:04:02,690 And always we are moving. 35 36 00:04:02,700 --> 00:04:07,280 BLOCK Moving the datas reading datas 36 37 00:04:07,380 --> 00:04:14,410 And these are all stored in D1480 to -> D0. 37 38 00:04:14,670 --> 00:04:19,710 And how many data are we are moving always or block moving sixteen data. 38 39 00:04:19,890 --> 00:04:27,690 So inside of the D1480 data will be moved to D0 , d1481 39 40 00:04:27,690 --> 00:04:34,860 will be in D1 D1482 will be in D2 40 41 00:04:35,010 --> 00:04:38,150 and also we gonna write some data. 41 42 00:04:38,370 --> 00:04:47,720 So in the first scan we are moving hexadecimal 2000 address inside of inside to D 1415. 42 43 00:04:47,970 --> 00:04:54,330 So where we can get for the first station writing addresses here D1415 43 44 00:04:54,330 --> 00:04:56,560 it was like that always. 44 45 00:04:56,670 --> 00:04:58,360 Same never change. 45 46 00:04:58,380 --> 00:05:05,520 So how many data are we are going to write 16 that we are going to write so we are informing to our 46 47 00:05:05,600 --> 00:05:14,010 also our master plc we gonna write 16 that are so you can read it inside of the D1450 in here. 47 48 00:05:14,010 --> 00:05:20,560 So we are always block moving or moving the data. 48 49 00:05:21,090 --> 00:05:23,000 So these are all users data. 49 50 00:05:23,010 --> 00:05:29,520 So we will write some datas from PLC to slave devices. 50 51 00:05:29,520 --> 00:05:34,390 So imagine you selected d100 from D100. 51 52 00:05:34,500 --> 00:05:44,020 16 data will be written into D1496 to d1511 52 53 00:05:44,020 --> 00:05:52,070 if you put inside of the d100=1 , D1496 will be 1 53 54 00:05:53,020 --> 00:05:59,860 D101 = 10 let's say like this D1497=10 54 55 00:05:59,860 --> 00:06:09,160 also sequential sixteen data we can read and write but I'm not offering these because imagine 55 56 00:06:09,190 --> 00:06:17,390 we are working with the ten slave so it will be 160 data you are going to write and 160 56 57 00:06:17,500 --> 00:06:23,470 that you are going to read so it will take a lot time it will a little bit slow down your communication 57 58 00:06:23,830 --> 00:06:32,470 so what you really need to read or what you really need to write so you can just use as much as possible 58 59 00:06:32,860 --> 00:06:40,450 lower numbers data for example if you need just to write the frequency and the run and forward or 59 60 00:06:40,450 --> 00:06:41,460 stop commands. 60 61 00:06:41,620 --> 00:06:48,220 Just use two or three words or if you just need to read from your device just a current for example 61 62 00:06:48,490 --> 00:06:51,820 just use one word to read for example. 62 63 00:06:51,820 --> 00:06:58,100 So these are all according to your projects according to your system. 63 64 00:06:58,150 --> 00:07:01,330 So this is just an example. 64 65 00:07:01,330 --> 00:07:03,580 How can we use this communication. 65 66 00:07:03,670 --> 00:07:07,660 How can we use modbus communication to write or read. 66 67 00:07:07,790 --> 00:07:09,750 datas from slave or two slave etc. 67 68 00:07:09,920 --> 00:07:13,580 So in here I am finished for this video 68 69 00:07:13,600 --> 00:07:15,130 See you in the next video.