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  3. Getting Started With Wago PLCs

    Hello All, I have some background in Allen Bradly PLCs however am looking at using Wago 750 series PLC for a low cost project.  Doing some quick searches I find that the hardware is plentiful and relatively inexpensive.  I also see that CoDeSys is widely used for programming them and the best I can tell its free?  So, I'm looking a a few hundred dollars for the hardware off eBay and a free download of CoDeSys, is that it, or is there anything else I'm missing to get started? Thanks in advance for your help.
  4. Mitsubishi FX 3gE & OPC?

    Hi all. I am trying to connect up a Mitsubishi FX 3GE and Siemens s7-100 using OPC. I have been told my siemens that the FX series of Mitsubishi cannot talk over OPC, has anyone ever managed it? I find it hard to believe a fairly recent PLC cannot use OPC. Cheers!
  5. Hi, not a ladder but it should work as you want, if i understand it correctly
  6. PowerFlex 40 - F081 Plc Resoulution

    WHat comm cable are you using? If it's ethernet I've seen alot of noise problems and switched to using ToughCable pro from ubiquiti in any 3ph environment. Cut it right out.
  7. Hi! PresentCounter is not updating real pulses from the countercard to the PLC. This is why it is 'jumping'. Countercard is faster than the PLC reading. If you use countercard output, it will work with correct pulse amount, for comparing the pulses. I am not sure, what you were meaning, but this is the reason for 'jumping'
  8. (Untitled Project).pdf Try this. You need to keep D6 and 7 values for one scan only, right? place M8000 NO contact on top of your code, it will set 0 in D6 and D7 at every scan start  
  9. FX5u

    Yes that is the encoder , and yes it wont work if connected to the inputs , had it connected with the 1.5k resistors and it doesnt make a difference if S/S is connected to 0v or 24v . also i have checked the Rs-422/485 settings and i do not see any settings for this .  Thank you for your reply , taught i was overlooking something on the settings.  
  10. FX5u

    This is your encoder:  https://www.kuebler.com/en/products/measurement/encoders/product-finder/product-details/5873 Well, this is absolute encoder with ISS/BSSI interfaces and yes, it's RS-422/485 (differential line driver), but fx5U builtin rs-485 port is for serial communication and do not have standartd encoder profile protocols. Someone correct me if i'm wrong... Here's how this encoder work's:  https://www.roboteq.com/index.php/applications/applications-blog/entry/how-ssi-encoders-works This encoder have also SIN/COSINE A/B 1024 ppr incremental outputs, but it's also differential driver outputs (5V). You can not red it with Fx5 since  the inputs need 24V +-10% signals.
  11. PowerFlex 40 - F081 Plc Resoulution

    Hello! First time using this forum.  The facility I work in has an abundance of powerflex 40's and some 525's.  When the team LOTO's a piece of equipment and brings it back up we consistently see F081 Comm Loss.  We have found several different avenues to try and work around this some of them being. Parameter A105- Comm Loss Action:  Default 0- Switch it to 3 for continue last:  This works occasionally Unplug the Comm port and plug it back in-  This works occasionally  Power off and back on-  Works rarely  Replace the comm board and ribbon- This works rarely Swapp the drive out- Works every time but is costly and I feel its unnecessary.    We operate with micro logix and I have been told that there is a way to by pass this Comm loss in the program?  using a Debug type?  I am not sure and looking for any help.    Thank you 
  12. PowerFlex 40 - F081 Plc Resoulution

    Hello! First time using this forum.  The facility I work in has an abundance of powerflex 40's and some 525's.  When the team LOTO's a piece of equipment and brings it back up we consistently see F081 Comm Loss.  We have found several different avenues to try and work around this some of them being. Parameter A105- Comm Loss Action:  Default 0- Switch it to 3 for continue last:  This works occasionally Unplug the Comm port and plug it back in-  This works occasionally  Power off and back on-  Works rarely  Replace the comm board and ribbon- This works rarely Swapp the drive out- Works every time but is costly and I feel its unnecessary.    We operate with micro logix and I have been told that there is a way to by pass this Comm loss in the program?  using a Debug type?  I am not sure and looking for any help.    Thank you 
  13. FX5u

    hi ... its the KUBLER-8.5873.5320.B301.S003 encoder , i dont have much more info on this unit ,i was told i can connect it to the FX5 built in rs-485 connection .
  14. Hi, tosza93   I will give it a try now. Thanks for replies. I will update the result here after I carry out the test.
  15. Hi, glanov.   The PLC model is FX1N-24MR.  The ladder diagram is developed in GX Works 2.
  16. You can use PLS instruction for first bit of D6 too.
  17. FX5u

    Encoder model/PN number?
  18. Hi, I am new to this community. My intention is detect trigger action at D6 and D7 (using PLS and PLF one scan feature).  I am here to ask how to reset the data bits in Data Registers, e.g., D6 and D7, as shown in Expected.pdf. My PLC ladder diagram is shown in Ladder Diagram.pdf.   Best Regards, sengkai   PLC Flinken v8.25 extreme D6&D7 stay at 1 after it is triggered.pdf Ladder Diagram.pdf
  19. 1734 VSHC24/C with a single encoder. Help Required?

    Hi guys, good afternoon,  I had the same problem as the friend above, but the use of Encoder is not to measure speed but terms as position reference.  But when using the PresentCounter variable, it does not seem to increase by 1 in 1, but rather seems to jump.  That is, I can not compare with my reference positions (in unit of pulses). The module we are using is VHSC24 and configured as counter and nofilter (for maximum speed).  The encoder we are using is programmable DFS60B (maximum limit of 10,000 PPR).   What could be happening?
  20. Last week
  21. Powerflex Step Logic Positioning

    I solved it.  I found the preset inputs.  Selecting them will jump to whichever step you want.
  22. Powerflex Step Logic Positioning

    You've set parameter 558 to Step Logic Last, which means the drive will, "Use Step Logic commands from last Step Logic step at last drive stop". In other words, the drive must complete a step and stop before it can continue to the next step. Have you tried using one of your digital input functions (parameters 62 through 66) as a Home command? Option 35 will make the input a home signal. The input must be on when the drive receives a start command, but I don't know if this will interrupt and over-ride a partially completed step logic command. To jump from one step to another step out of sequence (or (presumably) before a step is complete) you would have to change parameter 558 to "3" Preset StepL, where it uses digital inputs to step it through a sequence.  Have you considered putting an inexpensive controller in the system and just letting ladder logic monitor the steps and control the drive?
  23. 1734-VHSC24 Draw Wire Encoder rollover

    I'm not familiar with that encoder but the high speed counter you're using is pretty reliable. You said, "with the draw wire untouched"; does that mean that your encoder data is drifting when the process is not running? If so, you've almost definitely got EMI somewhere in your control wiring, or there may be slight motion on the machine that you can't see, that's being detected. If you suspect EMI, check your grounds, shields, adjacent higher-power equipment, RF equipment (radios or wireless SCADA), etc. To eliminate (or identify) actual motion as the cause, look at the counter's tags in the controller and check the raw, unscaled data. The problem is that each of these two possible issues can mimic the other, so you may have to temporarily disable the encoder either physically or in code to isolate the problem. That aside, I assume you've checked the usual suspects: Wiring is good, including proper grounding, shielding, and verified no EMI. Proper voltage / power is available to both devices. Mounting and coupling on the encoder is good, and device driving the encoder is subject to excessive vibration. (No bad bearings anywhere). The counter is set to encoder mode. Configured resolution (and other parameters) in the card matches the name plate on the encoder. The raw data being sent by the counter card to the controller is good, and the problem isn't somewhere in the controller's code. (Bad scaling / offsets are common). Just in case you don't have it, here's a link to the counter card's user manual: https://literature.rockwellautomation.com/idc/groups/literature/documents/um/1734-um003_-en-p.pdf   Hope this helps.    
  24. I have an application using a Powerflex 525 for positioning.  I really should be using a servo but the equipment is already in place. I have it set up with three steps.  First step is my feed.  Jump to the second step (rapid return) with a Logic Input 1 command.  Jump to the third step (ends cycle) with a Logic Input 2 command.  I have "Positioning Mode" (parameter 558) set up in StpLogis-Lst so that if I stop at any point in the cycle I can restart where I left off.  Everything works as it should.  It steps through the sequencer just fine.  The only problem that I am having is that if I stop it midway through a step it will not allow me to jump to the next step because the first step has not reached it's position.  For instance:  First step is an absolute feed motion in the forward direction for 5".  The second step returns this motion back to the home position.  If during the first step I stop it at 2" I can restart it and it will continue the last 3" no problem because it is an absolute move.  What if instead I wanted to go back home?  How do I jump to the next step if I have not completed the first step?
  25. Help translating Function block diagram to ladder logic

    Post your text of function block and we'll have a look at it. 
  26. Hi guys, good afternoon,  I had the same problem as the friend above, but the use of Encoder is not to measure speed but terms as position reference.  But when using the PresentCounter variable, it does not seem to increase by 1 in 1, but rather seems to jump.  That is, I can not compare with my reference positions (in unit of pulses). The module we are using is VHSC24 and configured as counter and unfiltered (for maximum speed).  The encoder we are using is programmable DFS60B (maximum limit of 10,000 PPR).   What could be happening?
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