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Found 31 results

  1. madhan
    Hi all , I have been using MELSEC - Q series plc for the past two project i dont find any issue with that but for the third project used same PLC same model but there is issue which I found unable to resolve The issue is when i try to communicate PLC using LAN cable by direct ethernet connection it works normally but by communicating using HUB network I cannot communicate, I checked all the parameters setting, I dont know what is the issue even contacted mitshubshi service to troubleshoot but they are not responding So here i am for your guidence to solve this issue see the images below to analyse this issue This connection is direct ethernet connection which works normally The parameters are set and writed to PLC The IP is set to my PC for communication When i try to find the cpu in the network it shows the cpu IP After that I checked for connection Test it show error I have also attached the Network route which i used to communicate Network Drawing.pdf I hope someone will help me to solve this issue Thank you , madhan ravichandran
  2. MatthewDuhamel
    I currently have two NX1P2 PLCs communicating back and forth over ethernet IP. However, I am looking to expand this project across multiple PLCs and I need a way for one PLC to see all other PLCs that are connected to the LAN network via Ethernet IP. I can use the _EIP_EstbTargetSta[255] function which is a boolean value that returns true if there is an established connection to a device where the last octet of the IP is specified in the array [255]. This function works well but my PLCs are configured with the subnet 255.255.0.0. And I need to see the connection status based on the third octet. Is there an existing function that I can use, or is there a way to view the full structured text for the _EIP_EstbTargetSta[255] function and modify it to suite my specific application?
  3. OmronOmicron
    I am trying to change the subnet of this CP1L plc. Currently it is at 192.168.250.*** and I would like to change it to 192.168.54.***. I already tried starting fresh by writing to the controller with ip 0.0.0.0 and then putting my desired ip address after. When I try to write to the controller with a subnet other than .250 for example 192.168.54.13, the controller saves the node address(.13) but keeps the same .250 subnet which results in me being able to ping 192.168.250.13 successfully but get no response from pinging 192.168.54.13. Yes I did change my local network card when pinging different subnets and also did a network reset in CX-P after every ip change. Let me know if there is anything I am missing!!
  4. martyndwn
    Hi,I am running a Windows 10 VM with Rockwell Studio 5000 on a Windows 10 host PC. I communicate to the PLC network through a USB-C to ethernet adapter. Occasionally, the communications drop out, if this happens the only way I can re-establish comms, is to shutdown the VM and restore defaults in the virtual network editor, as this can happens a few times each day, it can be very frustrating.When this happens I cannot ping the host either, until the defaults are restored and the VM re-started.I am using the bridged connection in the VM.Can anyone help with this?Thank you
  5. e5frog
    Currently have a A1SJ71E71-B2-S3 in the system for coaxial (thin) ethernet (10BASE-2), it's connected to a conversion module for TP-cable and from that then to a PC with plain TP network card. I was thinking about getting an A1SJ71E71N3-T to replace it and that way get rid of the converter from coax to TP. I wonder if it's possible to just have it hooked directly to the computer without hub - if I need a hub there's really no point in swapping - as there's still another thing between the computer and the PLC system that can cause problems. I was looking through the manual at mitsubiSIH.com and they seem to think they are connected to large nets with a bunch of hubs, PLC systems and computers. Appreciate thoughts and help.
  6. AP7311
    Hi, First of all, thanks in advance for those who support and advises. I have a Modbus/TCP operational network as shown below. However, at any 1 time only 1 LAN is able to communicate instead of both LAN networks of the device. In another system with S.E Premium Unity PLC, both LAN networks are able to communicate at the same time. Thus, I would like to enquire if this is a limitation of Quantum NOE 771 whereby only 1 LAN can communicate at any one time or whether I have missed out any parameter/configuration settings? Any issue on the IP address configurations? Please advise. Thank you very much for the advise and assistance.
  7. Cwayman
    I am trying to set up a brand new network of PLCs and GOTs in a classroom. Something I haven’t ever done before. I’m using simple Ethernet and going from a pc to a switch then the switch to each device. I can not get anything to communicate to each other. I can read from one GOT or one PLC but that’s it. Any help would be appreciated, thank you!
  8. crustyneon
    Scenario: You show up on site and the only knowns are Omron PLC and EtherNet/IP network. You have a laptop loaded with CX-One, an ethernet cable, and the ethernet port that is connected to a known EtherNet/IP Omron network (you can not see the PLC). I have previously worked with Siemens systems and used Primary Setup Tool and Proneta with wonderful results. Do similar tools exist for an Omron environment? Question: How to (relatively quickly) scan an EtherNet/IP network for connected devices without knowing their ip addresses?
  9. grubb
    Hey all - I am working on a car wash system design that will utilize the Nayax payment system. Has anyone utilized them? How do I incorporate the device with PLC to automate the system. After payment is approved how can I send out that signal from them, all via ethernet on a managed switch w/ wifi for exterior comms for the Nayax.
  10. Bobodopalus
    Hi all, after my complaing about my lack of network access in the workshop ive been tasked with fixing this so ive have some general questions about networking and concerning Ewons so this network will be used for connecting ewons to test products as well as general computer access the plan is to have 7 computer access points as well as 2 points to connect to product lines for testing my intial thoughts were to run 2 cables from our network to 2 routers, 4 computer access points and one line testing connection on 1 and 3 computer access points and one line testing connection on the other so first question is what type of ethernet cable should i use? i assume cat5 is fine, is it worth going for cat6 or is it just a waste of money? and should i be running crossover cable or straight through? do i need any specific routers or will anything do? will i be able to add splitters later down the line and be fine? or should i future proof a bit with more robust routers? my years of avoiding networking at uni has come back to haunt me i know the basics but thats all really thanks to anyone who can offer some usefull information i mention the Ewon units because ive been told that they need to be the only one on their connection to the network, although i dont know how true this is
  11. GuyMiller
    We have been having a re-occurring issue where some of our PLC's throughout our plant have a network outage that occurs around the same time every night. The PLC's are disbursed among the plant and it has been confirmed no large pieces of equipment are being turned on around this time every night... The network traffic does not fluctuate around this time and is not near a "troubling" level. There was a reboot to one of our servers on the same VLAN as the PLC's that are having the connectivity issues... What could have changed from a server reboot to remedy this issue, the server is not communicating to the PLC's, they are just on the same VLAN.
  12. GuyMiller
    Has anyone had any issues with dirty power or disturbances from Utility that occur duration the night?
  13. darknightshine
    Hi guys, I was programming my CP1L-E over ethernet with no issues at all. I did get an error when uploading my program regarding cycle time, so I went into PLC->Settings->Timings and changed both values to maximum (4000*10ms watch cycle time and 32000ms constant cycle time). Once I restarted the plc it just wouldn't connect. I've tried option cards CP1W-DAM01, CP1W-CIF41, CP1W-EIP21 and i just cannot get comms with the PLC. I can see the CP1W-EIP21 card on my computer, however,, in its own IP address. From what ive figured, the plc is getting stuck somewhere in its boot cycle as I am unable to ping it either. The POWER and RUN lights are both green, and the LNK/ACT light flashes when i connect an ethernet cable to the inbuilt ethernet port. Any help is appreciated, thank you! Any way to factory reset the whole plc or even just the settings? I've disconnected the battery for 30 minutes before plugging it back in aswell but that did not help me.
  14. horvatmiha
    Hello! I am trying to connect my PLC with SCADA. I am using S7-1200 1212C CPU (RELAY outputs). My SCADA system is iFIX 5.8 with driver S7A. I am trying to establish connection via GPRS router (TCP/IP). Port being used is 102 (default by S7A driver). In my company we have private network, SIM card in GPRS router gets static IP (set by RADIUS server) which is 10.247.XXX.XXX. My PLC has IP 192.168.0.10 set in Project. I am not sure what am I doing wrong. How to correctly set IP address in PLC to communicate in private network via GPRS router with static IP? I already enabled TCP port 102 in my router but I am not sure to which IP should I enable it because I am not sure if IP address set in PLC is correct. Should I use some communication blocks in program? I also enabled PUT/GET function (see attached pictures). Please help. Thanks in advance! :)
  15. antonio sanchez
    Hello I have a Mitsubishi FX in my production line, but I have a problem, If I lose the electric power I lose the connection between PLC and network, I need to restart the PLC for connection again of PLC in my network.
  16. haledwa
    Hi All I'm struggling to a PLC using WAGO's e!cockpit software which I am new to. In the network tab when I click to select "ETHERNET" from the "Scan Settings" area all that comes up is a drop down with "update selection" which does nothing. As a result I cannot scan for the PLC's on my network. Has anyone got any ideas on this issue. I'm running on windows 10, could that be a problem?
  17. retirednow
    Hi, I am replacing an AB SLC 5/03 installed in the garage in my garden with a 2nd hand 5/05 I have acquired. I am hoping to get some advice on connecting to the 5/05's Ethernet port using WiFi, allowing me to go online with it either from my desktop in the house (connected to my hub/modem) or via my laptop (connected to hub/modem via WiFi) Can this be done using inexpensive 'domestic' WiFi/Ethernet devices? The garage is just inside the house WiFi range when tested using my laptop down there. I have RsLogix 500 and RsLinx Classic. Any help/advice/comments would be much appreciated.
  18. ABlearner
    Hi guys! Can anybody help me? I have an existing controlnet network. How can I connected a new module? Like an 1794 IB16. What should I need to do after I connected the new module? One more question: What's the difference if I do not connected the new module right after the last module, but I connected between already existing module. Then what should I need to configure. If anybody want to help, please write like step by step. I'm a beginner, but I want to imporve myself. Thank you for your help. I almost forget, I need to work with Allen-Bradley PLC, and I have RSLogix 5000 software.
  19. trabelsi
    I have 6 PLCs CPM2A and 4 PLCs CP1LM I'm going to network them to do the supervision and data acquisition from each PLC and connects them to a pc via an ethernet port So what are the hardware and software used?
  20. MrRobotics
    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!
  21. Dan.b
    Hello all, i'm looking at installing a completely new network for our PLC system, using a ring topology. at the same time i would like to incorporate the IP cameras and VOIP into the same network. each system is on a different sub net, PLC = x.x.1.x, Cameras= x.x.2.x, VOIP= x.x.3.x estimated camera traffic will be 25 Mbps, PLC 10 Mbps, VOIP no more than 1 Mbps switches would be capable of 100 Mbps question: managed or un-managed switches? if it is possible to use un-managed without affecting operations then this would be a massive cost saving please only comment if you have practical experience implementing this many thanks Dan
  22. manowar
    Hello. I'm trying to talk with different OMRON PLCs over network. You can do this using SEND(090)/RECV(098)/CMND(490). I can't find any FB using IP of destination PLC. From what I have read about FINS you only define: - Destination network number - Destination unit address - Destination node number The problem is, that I have the same node number in different IP ranges. For example: - IP 192.168.1.10 (PLC Node:10) - Master - IP 192.168.1.50 (PLC Node:50) - Slave - IP 192.168.2.50 (PLC Node:50) - Slave - IP 192.168.3.50 (PLC Node:50) - Slave How can I comunicate from master to slaves wich uses the same Node number 50? Where can I define IP Address of slave unit? I can see that Multiway is doing that without problems. Please help.
  23. Rolf_Inge
    Hi again I browse through half a dozen mitsubishi manuals but turn up nothing for mitsubishi plc cross-communication. In this project there are about six L-06 plc:s. All are on the same ethernet network already, communicating nicely with the SCADA system. Per today information is (temporarily) exchanged via the SCADA system. Here is another hole in my knowledge. Namely how to correctly setup communication between these plc:s. I plan to continuosly exchange some 50 bytes of information. I would be grateful for some pointers and/or perhaps a reference to a manual. Cheers to all of you //
  24. zofim
    Hello guys, I have the following distribution in a profibus network: S7-315-2 DP(--> Salida del conector)1- Free DP connector2- RS485 repeater3- Periferia ET200S4- Periferia ET200S5- Periferia ET200S6- Periferia ET200S7- Periferia ET200S8- Variador MM440 (Cabinet C)9- Periferia ET200LENDS7-315-2 DP(<-- Entrada del conector)1- Variador MM440 (Cabinet A)2- Variador MM440 (Cabinet A)3- Variador MM440 (Cabinet A)4- Variador MM440 (Cabinet A)5- Variador MM440 (Cabinet A)6- Variador MM440 (Cabinet A)7- Variador MM440 (Cabinet A)8- Variador MM440 (Cabinet A)9- Variador MM440 (Cabinet A)10- Variador MM440 (Cabinet A)11- Variador MM440 (Cabinet A)12- Variador MM440 (Cabinet A)13- Variador MM440 (Cabinet A)14- Variador MM440 (Cabinet A)15- Variador MM440 (Cabinet A)16- Variador MM440 (Cabinet A)17- Variador MM440 (Cabinet A)18- Variador MM440 (Cabinet A)19- Variador MM440 (Armario A)20- Variador MM440 (Cabinet A)21- Variador MM440 (Cabinet A)22- Variador MM440 (Cabinet A)23- Variador MM440 (Cabinet A)24- Variador MM440 (Cabinet A)25- Variador MM440 (Cabinet A)26- Variador MM440 (Cabinet A)27- Variador MM440 (Cabinet A)28- Variador MM440 (Cabinet A)29- Variador MM440 (Cabinet A)30- Variador MM440 (Cabinet A)31- Variador MM440 (Cabinet A)32- Variador MM440 (Cabinet A)33- Variador MM440 (Cabinet A)34- Variador MM440 (Cabinet A)35- Periferia ET200S36- Variador MM440 (Cabinet B)37- Variador MM440 (Cabinet B)38- Servoamplificador E94AYCPM (Cabinet B)END What would be the best way to configure the network? As you can see I have more than 32 nodes in 1 segment and the RS485 repeater is not being used properly. Hope you can help me, Regards!
  25. Chickenkiller91
    Hello, I have to work now with a cj1m cpu11. I would like to connect it to a ns10 display. My first obvious problem is when i made the project in cx programmer, that unlike in cj2m i wasnt able to select the cpu unit in the IO table and set the ip adress. How do i need to set the ip address? im reading an omron guide, but it is confusing, and so long, i only want to set the ip address :/. Also how can i set the fins network to 2? On the cx-designer i set the network address:2 and the node adress:40. I know that the 40 means the end of ip address. Thats why i want to set the plc. How about the network address 2? Help is much appreciated. Thanks!
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