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  1. Is it possible to reset " Motor replacement detected error" ( Error code 95.01) using code without connecting to PLC through sysmac studio? If yes please suggest how to do it... Thanks in advance...
  2. A1S68AD CARD

    Hello. I have a system in which an A1S68AD card is used, that card has been damaged . I replace that damaged card with the new A1S68AD card with same wiring and same setting of dip switch. But at channel number 3 there is a RTD connected which gives 4-20 mA signal. But in Plc at channel number 3 the data register is showing -2400 fixed value all the time and in actual the temperature is varying. But PLC SHOWS FIXED VALUE OF -2400. PLEASE HELP ME OUT.
  3. All of the ethercat servos I have installed are Omron. I have used many many brands in the past - over analog, pulse train, but not ethercat. I have one of the Yaskawa servopacks that can control two servos independently. The drive is all wired (POT, NOT, safety), autotuned, it's in RUN OK state, I have installed the ESI file, set up the axis, mapped the PDOs.. it's all working, but they do not move. I made a test program just with MC_POWER and MC_MOVEJOG/MC_MOVERELATIVE/MC_MOVEABSOLUTE along with the resetting of MC and EC and the servos do turn on, but ignore any movement command. They do not flare up with an error, and they give me their actual position, so the network is working. If I send the movement command the command position starts to differ, so the plc is/should be sending the command. I feel like there's something missing in the PDO mapping screen, but I didn't need to do all of this with Omron so I have no idea. I thought at first the servos needed huge units of movement and speed but the actual position value confirms this is not the case since it doesn't ever change.
  4.  What is the difference between Active Immediate homing and passive immediate homing ?   Does Motion servo axis have to be turned ON for active immediate and turned OFF for passive immediate homing ?.
  5. I have seen some programs in which they manually unlatch all bits like in figure 1, and in some programs they don't do that.  The instruction help page, ladder execution says that in pre-scan .EN, .DN, .ER, .IT bits are cleared to false So do we need to unlatch all these bits before giving a motion command like MAM ?  
  6. Dear all, I have a FX2N-20MR chinese semi-clon of a Mitsubishi PLC. It has only a serial DB9 port that cannot be removed or exchanged (which is possible in the Mitsubishi original PLC). I wonder if I can make a simple SCADA system using that port and just one computer. I am reading this post: https://forums.mrplc.com/index.php?/topic/9653-fx-series-and-modbus/ And I am wondering how I can do what it is suggested there in the second message:  to use a free FB block, available in GX IEC (but not in GX Developer), which will communicate modbus via a standard RS232 BD board. Later on it mentions a library called ModbSFX. That message is from 15 years ago so I am wondering if now there is some other way to do it, perhaps some other software has that functionality? I don't have GX IEC. I am a student trying to make a project so I would like a cheap and simple solution. Any help to do so will be very welcome. Thanks Regards Marcelo
  7. Mitsubishi a1s connecting to

    Hi..looking for some help....trying to connect to an A1Scpu using an old DOS based version of 'medoc'using serial port..what lead do I need to connect between  pc and plc cpu?...have tried sc-03 lead using pc 232 cable but doesn't want to connect...tried changing budgets rate etc with no success...I also have an sc-09 lead if usable?  
  8. We currently have Delta DVP60ES2 and DVP32ES3 PLC's doing positioning control on Inovance IS 620PS2R8I 400w Servo Drives by Pulse/Direction. Under both of these environments our pulse count read on the Inovance drives are reading higher than what the PLC is outputting. We also have Mitsubishi & Inovance PLCs, which when connected to the same Inovance drives dont have any discrepancies in the pulse count. We also have Delta ASDA servo drives, which when connected to the Delta DVP PLC's also don't have any discrepancies. Given we have tested these combinations, it has led us to believe there is something unique about the pulse train output from the DVP PLC's that is causing the Inovance drives to read additional pulses. Has anyone experinced a similar issue with Delta PLC pulse output? If so what was the solution? 
  9. Hi guys, I am using a GT2107-wtsd HMI and a FX5U-32M PLC with gx works3 and designer3, i setup some simple ladder code to test that everything works, but i cannot get a normally closed contact to open when i press the button on the HMI and make the light turn off? screenshot below shows the code and the HMI buttons, when just looking at the HMI screen, all lights should be off with the exception of light number 2 as it is conected to a Normaly closed contact and i want it to open when i press the button on the HMI beside LT2 (light 2). I cant seem to get it to work.. please help, thanks.
  10. Analog input melsoft (fx3u)

    Hello, I am new to the programming of logic controllers. I have a Chinese FX3U 24 inputs and outputs with analog in and outputs. I am trying to teach myself the basics of the programming but I am stuck at the analog part.    what I am looking to do is create a program so that when a 12v battery bank voltage drops and rises it can trigger other outputs. I have a voltage divider which outputs 1/5 of the input.    Thanks for your help in advance.  Ben. 
  11. Hello everyone, I have this weird problem that the PC (process complete) bit of MAS command does not clear after a cycle time.  As you may probably see in the picture attached when the desired torque has been reached, the servo has to be stopped using MAS command; however, this is good only for one cycle!! The PC bit will remain on even when the whole sequence gets unlatched/reset. I have to manually reset this bit. I was wondering if you could help me with this issue, please?  Thank you!  
  12. Hey guys, I am new to mitsubishi software and hardware and i need help connecting to my PLC. My setup goes as following: PC to HMI Via USB HMI to PLC via Ethernet the HMI is a Mitsubishi Electric GOT2000 Gt2107-wtsd and the PLC is an fx5u-32M I dont know how to go about connecting to the PLC so that I can setup buttons and light to make sure everything is working fine, I dont have a full understanding of GX Works 3 and Designer 3 so this is why I am looking for some help please and thank you! pictures below of the whole system.        
  13. GT2107-WTSD not showing in GT Designer3

    Hi guys, im just looking for some help if possible, I am trying to setup a HMI (2107-wtsd) but GT Designer3 does not have this model nor does it have any 2107 models in the GOT type dropdown. How can i get my model to show? I have tried setting the GOT type as a G2105 and the GT softGOT2000 and these did not work, the HMI is on a white screen with install package data but i cannot do this if it is not in the GOT dropdown correct? I have attached some pictures to show. the HMI is connected to the PLC via ethernet and the laptop is connected to the HMI via usb I am very new to this so we are using test benches so if anything looks wrong i am very sorry
  14. Hi, I am facing the strange problem with QCPU (Q03UDE) Controller, I have multiple modules in my project ( Analog, Modbus & Digital Modules) but after some time a random error comes and all my analog Chanel values hold the last values, meanwhile controller does not show any error in the diagnostic tool. After rebooting the PLC power Chanel values start to update. This thing happens randomly.  Kindly help me.  Thanks in advance
  15. GX WORKS 2 with MX component

    I'm trying to simulate the proface HMI and my ladder program using the MX component " communication setup utility". I followed all the steps on a tutorial vid however an error pops'up (check the attached file). i was wondering if you can help. Thanks in advance.
  16. Hello Mrplc's members I have a Korean version " goldsec Moj2" of Mitsubishi plc A0j2 I need to know the right software for it And how to get it I tried GX Developer but it didn't work because it have only A0J2h type And I tried melsec medoc (version 1.64) but it didn't have A series CPUs
  17. FX2N HELP!!!

    Hi!! i was wondering if you could help.  I'm currently working on my final year's project, in which i have to recreate a backup file of a LADDER program so i can transfer it later after i add the EEPROM extension.  if i transfer from my computer to the FX2N-32MR the ladder program, does it get saved in the EEPROM or RAM? 
  18. Hi, I have the following configuration where 4 PLC panels, with each having a Q12PH CPU and QJ71E71-100 module. All these QJ71E71-100 are connected to a HUB using straight cable. From the HUB one connection is going to an I-Fix SCADA which is already communicating with all 4 PLCs using MC protocol. I want to send data from 3 of this PLCs to the 4th PLC in the same network using fixed buffer communication. Can anyone provide a sample program for the same. Send and Receive side. I am using GX Works 2 for programming. Your help is very much appreciated.
  19. Hi,  Can someon help me with the following question. Like what makes a Kinetix 6000 drive a Guarded drive ? What type of safety stuff can you set to make it more safe.  Is it some parameter ? I am bit confused, by the manual. Should I active it in the PLC program or how ? Or it is some setting like a safe speed or torque.  I would really appreciate any help. Thank you so much ahead.  Have a great day, thanks for the reading.
  20. Hello guys!  Im using RS Logix 5000.  Can someone explain me what is the difference between when a servo is shutdown or disabled ?  I read the help but it says the same. I can assume it like when its shutdown, there is inside some circuit which is not allow the 3 phase for the drive.  Disabled is that when it have the 3 phase but nothing can happen ? Is there any difference with the break ? Like when its shutdown it can rotate until its slow down by itself or the break will be active ?  I tried to uplod a pic but it was not succesful. When you open a servo axis properties and you choose the Fault actions tab. You can find there these settings.    Thanks a lot. 
  21. Hello Guys! I have couple of questions about tuning an ab servo motor. -Actually what does the drive or plc doing when I launch a servo auto tuning?  - What are the little boxes like position error integrator ? There are checkmarks in fornt of the lines. Can I choose the methode or something? I mean its not "auto" ? Why it is auto then ? - Can someone send me some basic literature where they explain me what these stuff acutally meaning ?  - What is the hook up test what for is good ?  -When you are doing a servo auto tune what are the parameters that you are monitoring and why ?  -I should do the auto without or with load ? Whats the difference ? I know there are so many question I would be so grateful if someone could help me with these answears, or even just with one. Thanks again. 
  22. Hi. I would like to ask that like you guys are when using a kinetix servo motor what type of safety conditions are possible ? I found a fault actions label. Is there anything else like between the parameters or so ? Thanks ahead. 
  23. FX3U Output

    Hi,   we have  a FX3U 128 PLC. I connect 24V to COM and all the output in the partition Y0, Y1,.. have 24V even if some output are ON and some are OFF. Why?
  24. Consule timeout connection servo driver

    Hello everyone, Can you help me to solve of my problem? I have one type of servo driver Matsutame ALX series. Driver is using controller of MITSUBISHI. I need to change data point using my console, but when i try to connect to the driver, console always display message "Connection Timeout" . Maybe you have the same problem of me, please advise sir. Thank you.
  25. How to use RTU_Master ?

    How to use RTU_Master, Get_Bit_Mbus, Put_Bit_Mbus, RTU_CRC16 to process data from RFID reader? I want to take an RFID input an process its data to run a particular rung, any alternative option is also welcome. Thanks in advance.