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  1. i am using a VSD Altivar71 and controlling it through serial MODBUS communication, the probllem is sometimes after stoping the motor the drives gives the "nst" fault which means according to the programming catalouge "freewheel stop" it doesn't do that all the time but it happens a lot and after uploading the code again to plc the problem is gone for a while before it happens again. i am sure that the fault is happening because if communication because when i controll the drive from hmi it never gives that fault, i checked the setting and tried different cables but it still gives "nst" and motor never moves, i found that in catalouge but i am not sure how to address the problem.
  2. Hi everyone, I just want to layout the structure of the question. I have a GOT2000 (GT27* series) that I have hooked up and communicating with an Allen-Bradley PLC. I have established connection and can pull out certain tags values from the PLC program in RSLogix 5000. While I can read the tag values, I cannot modify them (in certain conditions).  So let say that I have a User-Defined Structure named "Smoke_Detector" and here are it's available members: Smoke_Detector:   - ALARM (BOOL)   - ON_TIME (DINT) * DINT in Allen-Bradley but Signed Binary 32   - Battery_Life (REAL)  My question is that while I can read and display the tag and its members through the following:   - LAMP for Smoke_Detector.ALARM   - Numerical Display for both Smoke_Detector.ON_TIME and Smoke_Detector.Battery_Life But when I tried to modify the values via a Bit Switch or Numerical Input, it does not operate on them.  However, if these tags are members are just standalone tags, meaning that they are not within a UDT in RSLogix 5000, then I can operate/ modify them just fine.  Here are the things that I have tried: * Making sure that the permission are set to Read/ Write in RSLogix 5000 * Making sure that the tag definition in GT Designer 3 follows the structure where @[channel]:[Network #]:[Station #]::[Tag instance and member (e.g Smoke_detector is the instance and Alarm is member] Any possible insight and input are appreciate! 
  3. Hi all !    I need a help about connection between mitsubishi GOT Simple series (gs2110) to kawasaki robot via crossed ethernet cable on tcp/ip protocol. I actually have a fx3g for main unit of my project, and also i have a kawasaki robot for slave unit. My purpose is basically to control both with HMI. I used RS422 between plc and got gs2112 and I want to use a crossed ethernet cable between robot and got but i did not communicate with ethernet even between pc and got. There is a manuel which I found on internet about GOT2000  Connection Manual (Microcomputers, MODBUS/Fieldbus Products, Peripherals) I think i need to work on  microcomputer connection (ethernet) subject, what do you think about that ? I need all advices and ideas which come from you.   [ROBOT]--------Ethernet--------[HMI]--------RS422--------[PLC] https://electrobit.ee/web/file_bank/Manuals/operaatorpaneelid/mitsubishi/GOT2000/GOT2000-connection-manual-ENG.pdf
  4. Hello All, What are the methods to get the monitoring data from A series PLC? I know its not supported any more, interface modules are not available...,    So the basically,   If I want to write customer software (may be embedded) what is the protocol I need to follow? I am connected to CPU unit by the way, there is no other modules except few digital and analog interfaces on PLC. Thank you in advance for your direction, direction in any way would help!
  5. Hi guys,  I have been trying to sync up my RSLogix 5000 tag to GT Designer 3 (GTD3) objects but I noticed that GTD3 only recognize certain native data types from Allen Bradley Logix5572 Controller (Model 1756-L72).  In the documentation that I found, it show that certain AB Native Tags are transferable to GTD3 Data Type (See the attached file "AB Tags to GTD3 Tags" ) One of the User-Defined Data Type from the RSLogix 5000 that I am trying to sync to Text Display Object in GTD3 is called "UDT_MY_CLTR_INFO" here is it's hierarchy of inheritance from RSLogix 5000     Name                                                                     Force Mask                                                                                   Data Type MY_CLTR_INFO                                                     (...)                                                                                                 UDT_MY_CLTR_INFO      MY_CLTR_INFO.NAME                                                                                                                                           STRING           MY_CLTR_INFO.NAME.LENGTH                                                                                                                      DINT           MY_CLTR_INFO.NAME.DATA                                                                                                                           SINT[82]    In my exported tag which is a CSV file, it doesn't list the sub-classes MY_CLTR_INFO.NAME, MY_CLTR_INFO.NAME.LENGTH, and MY_CLTR_INFO.NAME.DATA, it would only list MY_CLTR_INFO.  How do I link up my "Text Display" Object in GTD3 with the tag "MY_CLTR_INFO.NAME" whose Data Type is STRING and GTD3 does not have a STRING Data Type?  I appreciate anyone that took their time to read my problem and any attempt to help me out. Thank you. 
  6. C200H communication issue

    Hi We got 2 laptops Laptop1 communicates with a CJ1M and a C200H PLC. No problem. Laptop 2 communicates only with  the CJ1M, Not with the C200H, Same program, same conditions. I also tried with "Direct online" but no succes How can I get laptop 2 also to communicate with the C200H? Thanks
  7. Hello,   I need to communicate a Datalogic Qw2120 ( with a USB connector  )  to a Modicon M251, it has a RJ45 Serial, i don´t know where to start , can anyone please give me a hand ? I would appreciate it very much.    
  8. Hello,   I need to communicate a Datalogic Qw2120 ( with a USB connector  )  to a Modicon M251, it has a RJ45 Serial, i don´t know where to start , can anyone please give me a hand ? I would appreciate it very much.
  9. Dear all, i have using nexgenie 1000 cpu for my new project. but i am not able to connect with codesys v2.3 . I have installed target file T1.4 and T2.4. trie with both. Now i have doubt with communication cable. I have used standard RS232 Cable with 5and 8 Pin short. Kindly suggest the correct one. Thanks in advance
  10. Modbus/TCP PN communication

    Hello, I'm trying to make communication between a 315-2 PN/DP and MSA Gasgard XL. I want to read out 40010, and 40020 from GasGard, it works sometimes, but most of time the connection does'nt  build up.  The parameters i using are: Start address: 9 Lenght: 10 Recv_Time: 5s Conn_Time: 5S I did playing with Recv and Conn Time and it effected the rate of succesful connections, but it still drops too often. Also i tried to read only 9 and 19, but then it didn't read 19. Anyone knows how could i optimize the connection? Thanks  
  11. Fx3ge to Fx3ge communication trough lan

    Hello, For my assignment, I need to control lights from 2 seperate locations. I have two FX3GE-24M plc's connected through a LAN network. The idea is that when input X004 gets high, relays Y000 to Y004 gets disabled. I'm trying to use the Fixed Buffer communication protocol.  Master IP address: 192.168.1.80 Slave IP address: 192.168.1.81 I'm using GX Works2 together with the FX configurator  I'm lost in all the different datasheets... Could someone point me to the direction on what settings i need to change using fx configurator and a basic program of communication?  Thanks in advance, Dennis
  12. We have a Injection Molding Machine from Mitsubishi with a A2US-S30 CPU. I would like to establish a communication of this PLC with a  PC. The CPU has a 25 Pin Dsub connector. How can I achieve this? This is an old machine and we don't have any manual for this PLC. Somehow I could find an instructions manual on the internet but this manual does not contain information regarding PC communication or supported communication modules.  I have never worked with this Mitsubishi A series PLC. Please suggest a way to start and share any manual which I could refer to. Thanks!
  13. WeinTek to AB PLC Issues

    I am connecting a WeinTek eMT3105P to a CompactLogix L2 series PLC via the WeinTek Rockwell PLC (CompactLogix) - Free Tags driver and I cannot for the life of me get the thing to connect. I have all my tags imported and have played around with all the settings in the manuals I can find. Any help/advice would be greatly appreciated. I know my IP addresses are correct and if I connect my cable directly from the HMI to the PLC I still get the "PLC no response" message 
  14. Hello to all, I am new here, and I have a project with FX3U plc and CR 2DA 700 robot controller. Does anyone have some experience in establishing communication over FX 3U enet module and robot controller, I need to send and receive 5- 10 M registers and D integers. Thanks
  15. Hello everybody, I have network from : PC - 192.168.3.11 PLC - 192.168.3.250 I change this option in FX5U PLC in GX Works3 for Network Ethernet port --> Application Setting -> Security -Disable Direct connect with MELSOFT : Enable/disable -DO not respond CPU module search : Respond / not respond and I upload program to PLC. After upload program to PLC and restart it was impossible to connect again. I Have ping between PLC and PC, but could't write program. Always writes me Error <ES:0180840b> So to disable Security Option you should to do : 1. Open Works3 2. New Project (Choose your PLC - FX5U) 3. Online menu 4. Specify Destination Communication 5. Click twice in PLC module 6. Set Connect via hub (In my case i connect PC and PLC directly !) 7. Choose IP Address ( in my project : 192.168.3.250 , PC must be in same network 192.168.3.X) 8. Give OK 9. Connect Test. With steps I disable security options and it was enable to connect to PLC and Write data on it. I Hope that will help to other with same problem. Special thanks to : Piotr Tynor(Mitsubishi, Poland ) , Adam Syrek (Mitsubish, Poland ) , I. Ayvazova (Bulgaria) , K. Raykov (Bulgaria)
  16. Hi All, Networking guy here, looking for network experts on a AB PLC (1756-EN3TR/B v217021900) which seems to STOP ARPing for a device after 10 ARP's. The device is purposefully powered down, but when powered up, it can take minutes before the PLC sees it again. The PLC team says only changes in the PLC's logic are made. When an older backup is restored though, I do NOT see the issue somehow. 1) The devices that are powered down are back on the network and reachable within 10 seconds or so (ping). The initial thought was that they were not even on the network, but they are. Just that PLC shows a comms loss. 2) With the 'good code', the PLC, once the device is offine, keeps sending ARPs to find the device. The first one is a directed one, the subsequent ones are broadcasts. These broadcasts keep happening till the device is back online and is able to talk to the PLC again. 1st ARP after comms is lost: 474.423859     Rockwell_cf:a7:6c     Hilscher_2e:ea:08     ARP      60     Who has 192.17.150.208? Tell 192.17.150.30 Next and subsequent ARPs after the first one: 475.423471     Rockwell_cf:a7:6c     Broadcast             ARP      60     Who has 192.17.150.208? Tell 192.17.150.30 These ARPs keep happening every 1 second, till the device is online again. 3) With the bad code, the PLC, once the device is offline, sends only 10 ARP messages total and then stops sending ARPs altogethe . Then it takes 10 minutes* before it sends another one. If the device is backup online by that time, the PLC finds it right away. SO with these 2 different code bases, how is that a low level L2 protocol like ARP is impacted so much. The PLC team tells me that they have no idea and not set anything related to it. My question is where is the ARP network behaviour governed and how to change it? How can older code which supposedly only has changes in logic have different ARP behavior? * The 10 minutes interval might lead people to think it's a ARP timer and most likely it is, but then people usually ask about gratuious ARPS (garp) and I've verified that they make it through from the device to the PLC OK. If the device is offline for say a minute, the PLC mirrored port does indeed see the garps, yet at that point the PLC is no longer ARPing and regardless of that garp, it has to sit out the time till it sends a next ARP till it connects. Thus, I suspect the coming back to life process is governed by the PLC ARPing for it, and not by the detection of a garps. Thanks everyone!  
  17. 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? 
  18. I am using rslinx in my configuration with 2 devices: windows xp computer and an SLC 5/05 CPU.  The XP PC is running a program that relies on a file that is automatically dropped in a shared folder from a separate networked PC.  The file is deleted immediately from the shared folder.  The program on the XP PC uses rslinx to control the SLC 5/05 CPU to complete the operation.  The original XP PC hard drive failed and a new PC was installed with all the necessary software and services.  Ounce I completed the  setup, the process worked for 48 hours, then stuck in one operation (one file).  Now, I can restart rslinx and the software and the process will function normally, but stall, then get stuck on one file.  There are no files in the shared folder, rslinks has not lost connection.  The original router was replaced at the same time as the PC.  I am leaning towards rslinx storing the files somewhere and stalling/stopping the operation.  I can not find files anywhere.  Does the SLC 5/05 CPU store the files?  I'm lost.  Do you have any troubleshooting suggestions?  
  19. Is it possible to communicate from a PC program to PLC program for reading inputs and setting outputs? How can it be made ? is it possible to do from TER connector or AUX connector , without special comm module?
  20. Hello everyone, Is there any way to communicate with Mitsubishi Servo amplifier MR-J2S-350CP through RS232 ,I prefer to use 224XP because i already have it... thank you 
  21. Greetings everyone, I am using a VERY OLD laptop, Windows 98, the correct AB cable....and only used to download programs into equipment to restore in emergencies into AB 5/04.  I was able to connect to SLC 5/04 using RSLinx (used Auto-Config, all worked correctly) , and wanted to install a program from earlier version using RSLogix500.  It seemed to download correctly, the pop-up asked if I was sure I wanted to install new program, hit YES...then said it would change channel, pop up buttons were "ALLOW" or "DENY" (something like that). I hit "ALLOW". All seemed good until I plugged HMI back in....had a bunch of codes it didn't like, so I went to install back to original version.  When I went through the same procedure (mentioned above)....5/04 and laptop no longer wanted to communicate.  I assume it has something with allowing the channel change.  As you can tell, I know Jack Squat...I'm not a programmer (duh), but was handed a computer with instructions....and now the machine is down.  Any help with getting me in right direction is highly appreciated in advance.  I searched the forum, and wasn't able to find a solution... I suppose it has to do with an in-experienced, well intending human messing with stuff he shouldn't be messing with !!
  22. FX3U PLC WITH OPTIDRIVE E3

    Hi can anyone help me to undestand more about modbus RTU between fx3u with optidrive e3 ?? I'm using rj45 with fx3u 485adp-Mb for the connection. Then specially in making the ladder program in Gx Works 2. I'm stuck understand the command code there. I'm first time using this. Please help me. Thank you.
  23. Hello   i have a versamax icu200udr064 and i want to connect it with simatic basic panel ktp 1200 dp  both support modbus rut but the problem is that i cant find GE communication driver on the tia portal by whom i program the HMI.  One more thing is that i found a communication driver for modbus rtu but the tags addresses are in the standard form for modbus, so is there any solution for this?  thanks a lot .  
  24. Hi, I'm trying to set up a TCP communication between a Q03UDECPU and a Beijer E110 panel  I've tried both TCP and UDP as "communication mode" in E-Designer. nothing seems to work.  What I'm I doing wrong Se attached files from E-designer and Gx IEC Developer
  25. Hello I downloaded a .mer file on the Panel view 1000 but it shows errors on the display graphics. i have configured the Rslinx communication several times by selecting the rigt PLC in Design and Runtime mode. I am using Facotry Talk view 8.20 and creating 5.10 runtime file. Please advice. I was able to correctly download and use the HMI on a similar machine. I dont know what am I missing on this one.    Thanks Pratik Jain