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  1. Hello - I've recently started my adventure into PLC programming and I've found this site to be very helpful. I took on a project that requires control of a cylinder - the short and skinny is that the cylinder will have to provide position feedback and stroke to various set lengths determined by position of a selector switch. So - If position 1 is selected, the cylinder will stroke 20"inches. If Position 2 is selected, cylinder will stroke to 25"inches - so on and so on.   My questions is how to best go about this process. I may be having a brain-block and not viewing this clearly, but something is not clicking for me and wanted some advice. Planned on using Allen-Bradley's Micro850 PLC (had one on the shelf, and CCW software is free so why not). Thanks
  2. NB Designer

    Have looked right through the manual and cannot find anything. Finish up with a scrolling line. Ideally I would like to have an alarm page and alarm history page like the one in the NS screens. Any thoughts please?
  3. Every time my rsview32 project starts up all the alarms which are set up to alarm on 0 tag value show up on the screen even though the bit in the PLC is not in alarm condition. I believe this is because the communication between RSView32 and PLCs is not established yet and the tags are seen as having value of 0 in the HMI. Is there a way to disable or suppress these tags at startup to give enough time for the RSView to update the values so the false alarms are not being displayed?
  4. GX Works 3 - PID control

    Hi, I am using PID function (PID operation instruction) from GX Works 3 library but it doesn't work. I set all necessary parameters (sampling time, direction and upper/lower limit values + KP, TI). My input PID_Par is array of 25 points (in manual is written: "*1When auto tuning is not used, the same number of points are occupied as when the step response method is used."). For example, in GX Works 2, PID function works ok. Did someone have similar problem? Does someone have mitsubishi library (GW Works 3) with PID function that works correctly?   Regards Luka  
  5.  Hi all. I have a question about how to set up the motor in rotary mode. My application will be a basic rotary table driven by a servo motor without gearbox between. So, in my servo drive axis settings, I select the motor as a rotary mode. then I defined the maximum position setting value for 360 degrees, and minimum to 0. So far so good. But the problem comes when I want to make an absolute move using the mc_moveAbsolute to move 360 degrees. Whit this settings the error "target position settings out of range " will come up. So, what is the solution to rotate 360 degrees without generating this error? if I set up the maximum value to 361 degrees and then if I rotate 360 the error will not occur and the motor will rotate 360 degrees as I aspected, but it's this correct ? or there is another way to do it? Thanks  
  6. Good Evening, wanted to introduce myself. I've been in the Electrical, Instrumentation and Controls field for 25 years. I'm looking for opportunities to build control panels, any info will help.
  7. CP-1E Error

    Hello,  I am using Omron CP-1E PLC and expansion module 16ER and tc module.  When plc operated alone it goes to run mode when expansion module is connected either 16ER or TC module plc ALM/ERR led turned on.  
  8. Hello Everyone I have a problem to connect FX5U with Inverter Mitsubishi D700. ( no  respond from inverter) . I did read and following the manual. Could any one can help me?
  9. There have been many good discussions on the applicability of cloud-based solutions for manufacturing and process control systems. On one side, some people have concerns regarding security and control of the information, on the other side, there are identified benefits enabled by cloud systems. From VMS minicomputers to DOS and Windows, from ArcNet to Ethernet, it is inevitable the industrial automation systems shall adopt the technologies that are getting predominant in IT general use; the current environment that I am calling the “Cloud-iPad era” is no different; therefore the practical discussion is not if those new technologies will be applied in the industrial environment, but how. This paper is not intended to join the conceptual discussion about the cloud, but just to present a few simple practical examples, where cloud technologies are already enhancing industrial automation solutions and enabling new business opportunities. CloudPracticalApplications.pdf
  10. I am using NB Designer for last one year without problems. But from last week i am getting new error Background PLC control recorder 0 error! while compiling and not able to update the HMI. Please help.
  11. Dear masters! Hello! I have a PanelView Plus 1250, firmware 6.1, and I would like to know if it is possible to export to csv or .txt and save the alarm history to an external USB memory from the terminal? Today I'm typing the whole alarm history manually...
  12. Hello, I am quite a newbie in PLC programming. I am trying to add a PID control function into a ladder program of FX3U PLC that was made by the person before me who used GX developer. I have read the manual, but still not sure if I understand it correctly or not. Please help me with questions below: 1. For parameters [S3]+1, how do I set the bit value? My understanding is that I need to align the bits I want, and then convert to Decimal number to set it, is this correct? i.e. If I need bit to be 0100001, do I set the parameter to 33? 2. How do I know if I am doing backward or forward operation? I think what I am doing is feedback control loop, does this mean it is a backward operation? 3. If I set auto tuning bit (parameter [S3]+1 bit#4) to 1, will this make the the program to run auto tune everytime I start the PID? 4. For parameter [S3]+22, [S3]+23 and [S3]+24, the manual said it will be occupied. Does this mean it will be preset by the program which I shouldn't mess with them? But how do I set the output upper and lower limit in [S3]+22 and [S3]+23? Also, I couldn't find any example of PID parameter setting in the manual. Not sure if I missed any important section in the manual. So please point out to me if there is any example. I also attached the manual on the PID page just for a quick reference. Thank you in advance for the help. FX3U Programming PID.pdf
  13. MNET to OMNI

    Good morning all, does anyone have any experience communicating to an OMNI Flow Computer through a MNET card, Im getting data back but it is not what i expected.  Should I be using Enron/Daniels? Byte Swapping? Thanks
  14. Hi,  I'm new to TwinCAT 2 and i'm upgrading a long time design (hence the TwinCAT 2 reference), to read a more sensitive torque signal.  I'm using a Beckhoff CX1030 as my PLC Controller.  I needed to add 'homing' to my motor sequence and confirmed with Maxon, im using the function blocks correctly and in the correct sequence to establish my 'absolute zero'/'home' position.  The motor has an output to write to:  ControlWord, which tells the motor that the position it is sitting in is '0.'  My program compiles, it runs, it writes each function block, but it's not seeming to get back to the test run opMode, even though i tell it to and the function block performs the 'Write' function.  it's stuck at zero and not reading an analog input signal from my torque sensor.  so im getting an artificial torque reading through every test.   i think this is related to my tare motion.  I start the program, home the motor, get into profile velocity mode, tare my sensor, enter profile position mode, go back to position 0, then back to profile velocity mode, run a test, sample data, go back to 'home' or '0.'  I wonder 1st, is my variable not linked properly through the system manager?  2nd, i set a boolean variable to set the 4th bit to 1 in my control word write (setting the 4th bit high will set my current position to absolute zero), but did i not connect the program to the main sequence properly?  looking to read a valid signal again and see that my motor moves back to 'home' each time.  Do i not need to home the motor after the tare, since the tare nulls out the torque value after the tare? after this i need to program my sample period, instead of it being fixed, as it is currently written and then use my home position as my trigger to start sampling.... Beckhoff applications department is overloaded, currently and can't help and this is all beyond the knowledge of the general support line.  I've gotten fairly far, on my own, but of course, the project is under a time crunch.   Does anyone know twincat well enough to help guide me?
  15. Double address - Alarm

    Hello, I would like to see your logical opinion about this situation and in which part of system where I need to find solution - software or in the physical field. Subject: Twelve old system based on Mitsubishi PLC AnS series, Profibus Here is pneumatic transport, with 5 lines, each line have a shredder and discharge valve. A few months ago, when line 1 works , display shows line 2 and vice versa, it was first problem, but the system was still working. From the last week system doesn't work. On the display appear line 3 in works, but system can not started. Alarm shows Double address (perhaps two valves have some address), Alarm still appear after reset and even all lines are turned off. What is your opinion where to find proble (PLC, I/O moduls, cables,...)  
  16. RS logix 5000 motion control

    Hi Guys! I have a problem with Motion axis move (MAM) command. There is an Allen bradley servo motor what is working well. But I need to add a new program section, wich is in  a specified moment, the axis should move a certain distance. I think I need to use the mam command, just I dont know how can I configure the motion control part. I need to make a new tag ? or what ? I need to use a user define ? PLS help me.   
  17. CAM Control Data

    Hi everyone, I'm trying to use the cam control data by using an MR-J4-A-RJ and MR Configurator 2. When I switch the input "CAMC" to ON, I see that the output "CAMS" is switched to ON which means that the cam mode is activated. When I switch CI0 to ON to choose the Cam Data No.1 and switch ST1 to ON...nothing is happening like if there is no Cam Data. Please, have you any issue or idea ?? Thank you in advance Omar
  18. Flex i/o outputs shorting

    Hello everyone! Im hoping someone could shed some light on a issue im having. Im having issues with a 1794 ow8 output module. This module is used to control 8 hydraulic cylinders that push biomass into a burner. The overall problem is that roughly once every couple months a output will short in the on state and force a coil on, activating the vavle full time and burning out the coil. Each seperate output is fused on the module with a 2a fuse and each modules incoming power is also fused at 2a. The output that is shorted did not blow its fuse. The 'ON' light is not activated but 120v still runs through it. Since each valve has 2 coils and one is forced 'on' the main fuse will blow once the second half of the valve is activated because the valve is fighting itself. It is not just this one module, this happens on other modules that serve the same funtion as well. This is a contractor installed system but they have been no help so im left trying to figure it out. Could my seperate inputs be fused too high at 2a for this type of card. These are parker valves 120v 60hz with a max 1500psi pushing wet hog/chips. Any suggestions would be really appreciated!
  19. Cimplicity 7,5

    Good Day There is a SCADA Cimplicity and controller Control logix 5561 AB. Communication between them is organized via Ethernet IP. It is necessary to transfer some tags from the Cimplicity to the controller Control Logix. How to do it better? Through Rslinx DDE OPC or write scripts in the Cimplicity? 
  20. 1.Can anyone say how can i communicate control logix plc with ethernet to serial converter. here i am not having any eds file.
  21. Does anyone here use this? Control Draw If so how useful do find it? Worth spending the time on learning or better off with another product? If so what? My application is going to be for in-house management and design of control systems for a food manufacturing plant.   Thanks.
  22. TIA Portal V13- Alarm for Bool Data type

    IN TIA Portal V13 HMI Alarm Setup, Discrete Alarm Not allowing Bool Tags in "Tag Trigger". Please help how to set Bool Alarms?
  23. Hello, I am currently working on programming my first sortation system.  Attached is a blue print of the in feed conveyors and their loadout lines.  As boxes merge together they will be scanned by the barcode scanner.  From there we will be told which lane each box must go down, from the WCS.   My question is, without encoders, what would be the best way to control this system? Counting the packages as they pass through the photoeye? Or setting timers?   Thanks, James Sorting Conveyor Layout.pdf
  24. On-Off Temperature control

    Hi, i'm actually working on a project with a CPU33 CJ2M and a external analog output CJ1W-AD04U I'm trying to read the informations coming from a PT100 sensor and control a valve which act on the temperature. i'm kind of lost in this project because it's my "first time" with Omron ! Which function block must i use or how must i program this would you show me example ?  Thank you for the help guys.
  25. CJ2M-CPU32 and CJ1W-TC002 help

    Hi everyone. l have a project with omron plc but l dont know omron. l have CJ2M-CPU32 and CJ1W-TC002 also input and output units. do you have a example temperature control programme for this device ?