lchamarthi

How do you wish to communicate with the devices? What protocol?

Hi Teropod! I am also newbie to use SCU-31 or SCU41 modules with CJ1M-CPU13 PLC. My task is to use SCU-31 and communicate with 15 slave modules. To do this, I have gone through some manuals but it was bit difficult to understand. Could I ask your help in what needs to be done , as you might be familiar with this now. It would be greatful to listen from you soon. Thanks Lakshmi

Hi Folks! I am new to the usage of Encoders connecting to a PLC, to control the Motor. I just had a starting trial on it connecting one encoder to a PLC and came to know following controls Counter Register : for counting the pulses Direction Bit: remains ON for forward direction remains OFF for reverse direction Encoder PPR: 500, for every one complete rotation of encoder shaft, 500 pulses will be incremented or decremented based on the direction. with the above encoder, i would like to control a motor in forward and reverse direction for travelling 3.2meters length, with two sensor connected for its extreme ends (lets say top & bottom sensors). Will be Counter Register value & Direction Bit is enough from encoder side to program PLC and to get the correct control on said task or anything still needs to be considered. What exactly needs to be taken care from encoder point of view Any immediate recommendation or suggestion would be highly helpful as i am little stucked to move forward. Regards Lakshmi

What motor? It's a Induction Motor of 3 Phase, 1.5KW What motor controller? Motor will be controlled by a VFD (Variable Frequency Drive) which inturn will be controlled by a PLC for Start/stop, forward, reverse and speed control. What transmission? It's a travelling of Maximum of 3.2m length in vertical up/down. But operator can enter required length to travel in HMI. Two Sensors for up extreme and down extreme for safety stop.In Auto mode, Motor will keep move up/down from fixed reference (top) point, in a perticular length or height entered by a operator. What speeds? Moving Speed is about 50 m/Min. Intermediate stops or full travel only? What precision for stops? In Auto Mode, it moves up & down in a fixed length or height. In Manual Mode, it moves step by step with command. Precision is expecting about 5mm. I think above would be sufficient to suggest/recommend Thanks Lakshmi

I do have NS5 Touch Screen Panel & Relevant NS Designer softwares with me for simulating. Also i have NT Software too for viewing the old NT31C Program. The purpose i kept here is, I can do the migration from NT to NS if anybody wants on some quotation basis, also i can improve the HMI Asthetics too.... Thanks Lakshmi

Hello All, Just I would like to take up Migration projects from NT to NS remotely . I am capable to do the Migration by capturing & understanding the Application Requirements with little Inputs from the Customer. I can communicate over mails & maintain the delivery in time. I hope there is a scope for this and this is the right place to put in to reach everyone. If not I am sorry. But I am expecting a positive sign. Kindly let me know your valuable suggestions & comments. Thanks Devi

I mean, I can develop or migrate the software for their new NS Terminal, if they provide me the Old NT software & can send via a mail. Regards Lakshmi

Hi ALL, Hope things are going on smoth track. I would like to take suggestion from you guys for the following logic implementation. Please see the attachment for info. I want to turn on/off a Output for a input trigger pulse, as shown in attachment, Off for Toff1 and On for TOn1, again off for Toff2 and on for Ton2...like wise upto Ton4. User has a right to select any of the following. (by entering Non zero and zero for disabling TOff1& TOn1 (User enters 0 VALUE to all rest of the timers TOff2& TOn2, TOff3& TOn3, TOff4& TOn4) TOff1& TOn1, TOff2& TOn2 (User enters 0 VALUE to all rest of the timers TOff3& TOn3, TOff4& TOn4) TOff1& TOn1, TOff2& TOn2, TOff3& TOn3 (User enters 0 VALUE to timers TOff4& TOn4) TOff1& TOn1, TOff2& TOn2, TOff3& TOn3, TOff4& TOn4 Timing range: 1ms to 10msecs Can anybody suggest best way of doing logic? Thanks Lakshmi Application.bmp

Hi Everybody! I would like to welcome suggestion in achieving the following task..... I have 4 inputs and 4 outputs named as X1, X2,X3 & X4 and outputs as Y1, Y2, Y3 & Y4. Here there is no output fixed to perticular input.Explaing in a better way i want to give choice to operator to enable which outputs enable for which inputs. Operator enters the data in the following way. X1 ---- 0001 means Y1 only enabled ---- 0010 means Y2 only enabled ---- 0100 means Y3 only enabled ---- 1000 means Y4 only enabled ---- 1001 means Y4 & Y1 enabled ---- 0011 means Y2 & Y1 enabled -- -- -- -- Like wise for 4 position binary 15 combination comes. The same thing will be done/configured for X2, X3 and X4 too. Now to achieve this, I thought of In the Operator Entry, if 1Digit = 1, Give Y1 2Digit = 1 Give Y2 3Digit = 1 Give Y3 4Digit = 1 Give Y4 keeping as a function block which same can used for the X2,X3 and X4. Hope you understood the above. Which instruction supposrts to achieve the above logic? Otherwise any best/simple way of doing as i feel i am making it complicated? Thanks in advance guys Have a nice time Lchamarthi

Hi BobB, I can use Compare for the whole data register. But if i want compare whether 1st digit in a word is 0 or 1 which i can use? like wise 2nd digit in a same word....... Suppose D10 has the Data= 1010 ( Operator entered data stored in D10) here 1st digit is 0 here 2nd digit is 1 here 3rd digit is 0 here 4th digit is 1 Thanks Lakshmi

Hello All, Could anybody give quick help in PID instruction..? PID(190) Source value: B35 Control Word: C:DE4 C+1:64-----P C+2:100----I C+3:190---D C+4: 30--Time C+5: I kept 1000.....But really didn't understand what it is from manual..? C+6: Kept 404......This also i didn't understand from manual waht it is doing? With the above settings i didn't see any result in the output word. I am using CJ1M-CPU13 & DA041 Module to take 0---FA0 as resolution Please help me quick.... Thanks in advance lchamarthi

Hi All, I am struggling with PID with different problems since from the starting. Atlast I achievied the PID action but still my problem is not solved. In One PID Loop, Max Result is coming &4095 In another PID loop, Max Result is going to &255 as attached in the snap shots. Both are giving good PID action. I Couldn't able to find the reason. I kept the C to C+10 Parameters same for both. Just bit observaion in one PID process i observed #FFF and in another one #FF in after C+10 words. Could anybody help me in achieving this? Thanks in advance Lakshmi

Hello All, I have implemented one PID instruction in the attached code. In the result word always it is giving &4095 constantly regardless of what ever the set value. My expectation i think it should give zero when the Process value is more than Set value. I couldn't able to find what i am doing mistake in this. Can anybody help me out quickly in solving this. Becuase I have to submit this project by tomarrow morning. I will be very thankful to them. Please find the attached code. Thanks in advance.....& hope to get reply. Lchamarthi PIDProblem.cxp

Hi All, I would like to know the settings to be done in PLC / usage of CF Card (Model Kingston -512MB, CF/ADP) for Program downloading & uploading to CJ1M-CPU13. Also How to monitor the ladder from NS5? Is it possible from NS5? Thanks in Advance Lchamarthi

Hi All, We have a Visual Basic software to control & monitor the process parameters of one Power supply (which controls the Lamp). Ultimately the control parameters will be 1. Setting the rated voltage 2. " Current 3. Burn In Lamp Current 4. Read the Lamp Status 5. Read the Power Supply condition (for power failure,over volatge...etc) etc Now we have only the compiled software of VB for above & we lost original source code for this software.. This software talks to the power supply through the following protocol..shown different for Command & reply.bmp in different images. Commands & INTIAL COMMAND will come from VB software as a master. Reply will come from power supply. Now I wanted to trace the commands from VB. So I traced intial command using Hyper terminal connectivity of 2 PC's.I was running software in 1PC & another PC Command tracing using the Com Test Software. Like wise i traced first command from VB. It is attached as intial command & format understood like this <02><01>@<02>]<E0> As per the Command structure format attached above <02> Header <01> Node @ -40 Command <02> Length ]<E0> ---5DE0 CRC Some of the bytes doesn't have format <> becuase @ & ] are printable characters if we see from ASCII table.it is keep on repeating the same command in between with some format B<FE>B<FE> until it gets response from Power supply as attached . what is this B<FE>B<FE> stands for? I couldn't understand. Now instead of powersupply i am trying to give reply to VB Command. I tried in the Reply Format attached first. But what should be the correct format of the reply?. If i give the correct format then VB will proceed to next Command. Like wise I am trying to trace from VB commands..... Please find the attached Images for Command, Reply structure & Repeated running command image. Is there any other best method for doing this (Tracing the commands one by one) thing in better way? Please suggest me! Your reply will save me from trouble.If any clarifications please mail me. Thanks in advance Lchamarthi Command.bmp Reply.bmp Repeat_Command.bmp

Hi Mellis! As further progress since morning, as you suggested i searched for serial monitor utility in the net for free vesion & got Free Serial port monitor 3.0.0.1 software from HHD. When opened this software alone with Data view option when communication is happening b/n VB & power supply, it didn't show anything. But when i opened along with as i told u earlier Com Test software from B&B electronics i opened...data is running in this software (i can't see the first commands as it is running) but it is accumulating in Free serial port monitor software as attached. Here problem solved using Serial port monitor software is accumulated sequential data in the Read area & could get directly in Hex Decimal form (oprion available in Serial port Monitor). But as you said there is no color distiguish between VB commands & Power supply replies (VB Soft is Master & P S is slave) available in this software. Otherwise it is showing only one device i.e.VB commands only it is showing? I have doubt..... To get to view both device communication with color segregation what needs to be do in the both Hardware connevtivity (my set up i explained above) or software...? Thanks Lchamarthi

Hi Mellis! Thanks for your suggestion. You are very correct to my approach. Again after posting my topic further progress is.... I took two 232/485 converters & 2 PC's one installed with VB software & another one with Serial Port tester software (Com test from B&B electronics). Now i made a set up such that 1.using first converter & VB installed PC talking to the Power supply on 485 Half duplex. 2. connect/take same 485 signals at first converter & using second conveter convert it to 232 and give it to second PC which has Com Test software. 3. I tried to power on & communicate through the First PC, First converter using VB software. 4. I could get intail command as attached very first of this topic. Now As Power supply is connected, it is going for further commands but running on the software. So I captured with by pressing CTRL+Print Screen in the paint. 5.when i trace the captured commands, i feel intial command reapeated twice and after B<FE>B<FE> as i said earlier in the middle Again second command not the reply. All in thesame color. So i feel what i captured is only commands from VB not the reply from Power supply. Now the latest response i attached in the image for ur reference. But May i know which serial test software you are talking about which differentiates the command & reply by using color. This will help in defferentiating both otherwise whether we are getting only single side response. Your early response in this highly appreciable. Thanks in advance.. Lakshmi

Have I put the above topic in correct section or not i don't know. Because I didn't get any response. Please let me know to which section i should move this topic? Lchamarthi

Hi All, I am using stepper motor for both direction of rotation as required. It needs 2 pulses one is Clock pulse (decides direction of rotation ) & another one is angle pulse (no of step pulses to rotate in defined direction). Now i am giving Angle pulse signal from Function generator to give step pulses. Now i would like to replace/give these 2 signals from PLC.Can anybody help me How can i generate the Function generator output (2K FREQUENCY) in PLC...? Thanks in Advance... Lakshmi

I tried to rotate using 0.02 sec on/off timer to generate continious pulse....with this timer i am getting less frequency so motor is roatating slowly.To get desired speed timer should be 0.002sec(2ms) which is not available as predefined. I doubt can we generate own timer of 2ms using (TMHH) ultra high speed timer..in CJ1M? Can the transistor output should match to switch that much frequency? what is the mimimum response time of transistor output? Thanks & regards Lakshmi

Hello Mark The Spark Thanks for your good idea. But PWM instruction can be used in case CJ1M CPU2X.... But i am using CJ1M -CPU13....... Now i tried with 0.02 sec On/Off predefined timer to generate output pulses...with this it is rotating very slowly as frequency is les......... I need 0.002 sec (2 ms) on/off timer to get correct speed....How to achieve this?.Can anybody help me.... Best regards LC

Hi All, I heard & read on net that Omron CPU has two ports on it & In this Peripheral port is for programming & Port is for Communication with Omron Devices like Omron HMI, Temp controllers & Bar code readers..etc. Ports on COM06 for C200HG and SCU41 for CJ platform used for Other party communication means with non Omron Devices. Is it Right? Now my doubt is can I use this communication port on CPU for communicating with Other party device. If not Please clarify me the difference between Port on CPU & port on Communication module(COM06 or SCU41..)! Can I get any document to show ABOUT THE DIFFERENCE. I would like add few more points on this like I captured this below data but i couldn't able to understand. I made my image as attachment as you couldn't able to see. Awaiting the reply. Thanks & Regards LChamarthi Ports.bmp

Hi Everybody, I am trying to talk to the PC Hyper Terminal from PLC using RXD & TXD commands... As per the instruction help reference..Port flags are A392.05 ---for CPU RS232 port A392.13 ---for Peripheral Port & A396.05 --for Serial Comm Board Port1 After this how to proceed I am in confusion... Can anybody give hand to me.? Thanks in Advance.. Lakshmi

Hi All, This is not purely Omron related query but somebody might experienced in handling this Omega products. Sub: Remote Configuartion of Parameters from PC , not from the Front panel Keys We purchased one Omega RD4/6 Remote display unit. It is working as per the Specs sheet with the product. we can change the alarm limits & display colors settings i.e. (Configuration parameters) can be done/set through its front panel keys. I could able to display the data from Hyperterminal when RD4 is not configuration mode. When I tried to set this limits from PC, it is not allowing in confg mode. But is it possible to configure these settings from PC remotely using Hyperterminal? If not direclty with existing, can i achieve by add on something (Software or Hardware) to existing? Thanks in advance all........ LChamarthi

Hi All, Thank you for all for the information. I think its better to attach my protocol document to guide me in better way.But I strictly was not allowed to disclose the confidentialiaty.It shouldn't be long time on net if I attach. I can attach the document, later I can delete. Otherwise please suggest me the best way to send. Another way Can anybody share the folder for me? Waiting for ur kind reply. LC