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  1. Time sync

    Hello guys! Could you please someone help for me with the next topic. I have a 1756_L73S Controller. Unfortunatelly, sometimes, the time is going to change in the controller. I have checked the settings under Controller Properties menu. I have chosed the Date/Time. I can see the syncronisation is allowed, the question is how can I now what is it sync with ? Is it an NTP server or what ? I have also checked there is no any time module in the hardver configuration. If I'm clicking the advance menu I couldn't see any informatio which is relevant, at least for me. What am I missing ? I also did like, choosed to set the time the same as the workstation, but for the next day the time has changed again. Thanks ahead guys.    
  2. I am trying to display the time from an Accumulation timer. Using a data display object I am able to see the time in the following format 00:00:00.0000000. Is there a way to format the time without the decimal seconds I just want to see 00:00:00 (hours:minutes:seconds)
  3. Hello. I'm using OMRON NB Display Did someone already made time adjustment from NB to OMRON PLC? What I'm trying to do is to adjust time  from HMI to PLC. Since now I have done time sync from PLC to HMI using timer and data transfer. Now I would like to adjust current time in PLC using NB HMI. I know how to do it, but I'm some kind a lazy person. In our country there is a saying: " Don't reinvent things that already exists" Thanks.   BR, Andrej.
  4. Hey guys,   I know this is a topic that has been discussed before, but I am having trouble finding exactly what I am looking for.. I want to know the most efficient way to record data from my PLC to an Excel file on my PC. I want this to be done without the use of the PLC's webserver.  Specifically I am trying to record vfd speed every 10seconds with a time and date stamp. How can I do this?   Thanks, James  
  5. Hi All, I just take over a project which involve accurate positioning and movement up to 0.010mm(around 10 microns) of a servo motor. I found out that my motor always move to an incorrect position. Let's say I want it to move to absolute position of 5.210mm, I found out that it may move more till 5.235 or move less 5.190(something like that). So i start to check if I'm outputting correct pulse. Using CX-Drive, I connect to the driver then i found out that the pulse is correct and consistent(for example i use my pulse per revolution and pitch to determine how many pulses) Currently I'm using an incremental encoder and servo motor and my PLC cycle time is around 12 ms and my servo move at a speed of 0.66mm/s. So I was wondering if my PLC scan time will affect my accuracy in moving ?? I'm using a CJ2M PLC with CJ1W-NC413 pulse card , incremental encoder and a servo motor. I want to make sure is not software limitation or anything wrong on software side before I bring it to my mechanical team   Appreciate all inputs here and thanks!
  6. Good Afternoon, I am wanting to do two things with and ORMON PLC and HMI with CX-Programmer and NB-Designer. 1. I want to display the current time from PLC on HMI with the real time clock. 2. I want to be able to enter a time on the HMI which will be compared to the PLC time and will stop a process when when the entered time is equal to the actual PLC time.  If I can have some help with this that would be a great help. Thanks,
  7. So I have a plc program where most of the outputs are based on a counter that goes from 0 to 1000. The counter speed is adjustable and is generally set to run through a full cycle (count from 0 to 1000) anywhere between 0.5 to 2 seconds. The problem is, when I try to energize an output by using an EQU instruction, it will almost always skip the count because the scan time is not fast enough. I've been using a LIM instruction which has been working, but its not quite as accurate as it needs to be. I switched the counter logic to be continuous to try to make it faster which made it almost perfectly accurate... But only in the continuous task; it made the other periodic task significantly less accurate. I was curious if any of you had any tips on how to remedy this or just general help. I am still relatively new to PLCs and ladder logic so any advice would be awesome, Thanks in advance! Edit: The purpose of the counter is to cycle through from 0 to 1000 over and over again. My outputs actuate during a certain interval within this cycle (For example I would say actuate from 300 to 800 and it would stop and end once it hit those values via an EQU or LIM instruction). I wrote the logic as follows: First I calculate how many cycles per minute I want to perform, using that value I calculate how many times I want to increment my counter per millisecond. Then a timer is given a preset of the total cycle time. While that timer is running I continuously multiply the timer's accumulated value by the "cycle count per millisecond" that I calculated earlier; the resulting value is the current count that all my outputs are based on... Hopefully that makes sense, I know it's not the best but I could not figure out a better way of doing it and I know rounding is certainly making the accuracy worse. My hardware is: Allen Bradely PLC (5069 l306erms2), 5069-ob16, 5069-ib16, and a Kinetix 5500s2 Driver for my motor(s)
  8. SoMachine Motion Logic Builder V4.31. Can anyone guide me on how to read the execution time of the STL logic in my application? Thanks.
  9. DATE Instruction for CP PLCs View File Sample code to set the RTC on a CP PLC. Individual sections can be enabled/disabled. Submitter photovoltaic Submitted 03/12/21 Category PLC Sample Code
  10. DATE Instruction for CP PLCs

    Version 1.0.0

    104 downloads

    Sample code to set the RTC on a CP PLC. Individual sections can be enabled/disabled.
  11. The only thing I can find in help re using the buzzer is to use a multi function button. I want to use the buzzer as an alarm buzzer and turn on $SB13 or $SB14 from a bit in the PLC. Can anyone help please?
  12. I'm working to fix/improve the functioning of a program running on an a PLC5/40E.  I think high Scan Times are a big problem with this current program.  ((Backstory:  someone added some quasi motion control, and it sort of worked for a while.  Now that it's broken, the operators of this machine want it back. ))  I'll keep my question simple, PLC5's are new to me: There are 36 rungs with CPT instructions as the sole output, a third of these instruction are executed every scan.  I'm going to replace them with MOV instructions. My question is, is there any sneaky PLC5 reason to do a CPT instead of a MOV?  Is there a better way to do this? The CPT instructions that execute move integer values to a data file used by the HMI to control the coloration of touchscreen buttons.   Thank you for your time. PS: I'm new-ish to this forum, please feel free to let me know if my question was asked correctly or not.
  13. The CC-Link system on a machine has been intermittently dropping out.  Normally the Link Scan Time runs at a solid 87ms.  When the system "drops out", the link scan time will increase.  Sometimes double, triple, or go up 10x. It happens when the machine is running or when it sits idle. There are 33 stations on the network.  The same stations do not always fault but sometimes all of the stations will fault at once (as seen in the attachment pictures.) We have changed the main QJ61BT11N, the processor, the Q62N power supply, the main backplane (base unit), all cards on the main backplane.  Is it possible for one station or one of the cables to create a network wide problem?  Any ideas thrown at us would be appreciated. 
  14. Version 1.0.0

    61 downloads

    This document details the updating of the clock on the NB based on the clock in a Sysmac Controller.
  15. Setting the NB Clock based on the NJ NX Clock View File This document details the updating of the clock on the NB based on the clock in a Sysmac Controller. Submitter Michael Walsh Submitted 05/14/20 Category Tutorials and Quickstarts
  16. EA3 Micro Panel

    I want to display the current time of day on mt Micro HMI, EA3-T6CL. Is there a function for this? How can I get the TOD to display?
  17. So I have done quite a bit of googling and i even reached out to our integrator but i am having a nuisance fault of "Watchdog Fault" Caused by periodic task overlap. The task is scheduled to start again before it is finished. I added all of the Programs in this task MAX scan time and it only came out to 102 ms. the task is scheduled for every 100 ms. The watchdog is set at 500 ms. The task is currently running at 146-148 ms and i confirmed this using a TON instruction at the end of the task followed by a reset. What can i do to get this down?? What would be the best practice? Move programs into another task? Make the task continuous? What would happen if i did make it continuous? I tried setting the task to 150 ms and the controller DID NOT like that. I was barely able to get back on line with it to change it back to 100 ms. CPU usage is at 91% and this task accounts for around 50% of that. Thank you all in advance for your help.
  18. We are having issue on a machine running kinnetix 5500 drives where we randomly get clock Sync Faults.  This particular machine is set up as a slave looking to another PLC(L36-ERM) on a different station of the same machine as the time master.  There are about a dozen other PLC's(totally different machines) on the same network and most are set up as masters for their own systems and to my knowledge they have never had this issue. There are also dozens of other devices connected to this network, and then this network is part of the facility wide network.( I apologize if this is a little wordy) We are pretty sure that the slave is finding a more accurate clock on the network somewhere and syncing to it causing the servos to fault. We have tried making both the master, and the local clock of these 2 particular PLC's higher priority than the others to eliminate this with no success. What I am trying to do is track what clock this particular slave is looking at as its master when the clock sync fault has occurred.  is there away to do this through ladder logic?  it seems like we should be able to get this information and save it so we can figure out who the culprit is.
  19. Hello Everyone, I am new at this forum, seeking help from you guys and gals. Scenario: I have a Controllogix 1756-L71 5570 controller installed with 1756-TIME module. The function of time module is to take time from GPS clock module in NTP format and send it to controller in PTP format. All the status LED's on Time module are OK. Also sync LED is Green. Still the time of controller is not synchronized with GPS clock there is a difference of 45 mins. Fellows please help. I'll be helpful.
  20. Hi everybody,For a while I’ve been wondering, in every plc forum where the use of loops come to discussion I find most people answering that it’s best to stay away from them and that there are better, easier and mostly less scan time demanding solutions out there. Why is that?In my experience they’re the next best thing.Why would referencing data from an array of 40 Dwords using a FOR X:= 0 TO 40 DO loop be any more scan time demanding then the PLC scanning through 40 rungs of statments?Just curious if I’m missing something here. Cheers
  21. Utility Power at Night

    Has anyone had any issues with dirty power or disturbances from Utility that occur duration the night?
  22. PLC Not fast enough?

    Hello, I used a Schneider Electric SR3B261B PLC to create a trivia machine (as I call it).  Basically 20 buttons that let contestants ring in to trivia.  There is a display that shows the number of the person who rang in.  It works pretty well unless people press the buttons at exactly the same time.  Then it shows 2 results at the same time.  Usually resulting in a display of 18 when really it was 12 and 14 that rang in, for example. The PLC has options for: "Adjustment of the basic cycle time of the module."   and "Type of Hardware Input Filtering." Which I assume would make the PLC operate faster and avoid two inputs triggering at the same time.  If I change the setting and update the changes do not keep.  I appear unable to change it past 20 x2 ms  and slow (3ms). Is that a correct assumption that changing this would fix it? Why can I not change this?  Is it because I have so many inputs (14 or so) and Outputs (16 or so)? or because my program uses nearly all 240 lines of ladder logic allowed? What can I do to fix this?   Emerald
  23. Do-More Designer

    Trying to program production tracking in Do-More 2.3. Need to track current Date, Time of day & current hour.  Anyone have an example of how time of day is used? I have done this in Allen Bradley 5000, but this Automation Direct stuff is new to me.
  24. Hi,   I'm pretty new to allen Bradley and wanted to know if there was a function that could help me out. I have a rotation sensor which feeds back to the PLC via a digital input, once every half second or second once machine is up to speed - I want to record the off time of this DI (how long it is off between pulses, essentially how long it takes for drum to rotate once). Is there some way to record this time and use this value for compare logic? any help would be greatly appreciated.   PLC: Micrologix 1400 series B RSLogix 500 version 11.00.00 (CPR 9)
  25. I'm very new to sysmac. I am trying to display the current date and time in the corner of each of my HMI pages. I saw a button labeled date and time. It is asking for a variable for behavior. Do I need to write some basic structured text or FB in plc to get date and time and pass it over? I figured the button would update itsself since when I placed it on the screen it had the current date and time and refreshes every time I leave the page and come back.