Search the Community

Showing results for tags 'serial comms'.

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Found 54 results

  1. HI ,  Thanks a lot for the reply & help on previous topic. Now i setting up a new system with 2x CJ2M CPU13  and 2x SCU32 and the connection via 1000M RS485 cable. May i know the best communication to use for the serial communications?   Regards, TJ SHARON.
  2. Hello At first - sorry for my bad english. I have a FX2N-48MR with a FX2N-232IF and i only want to watch the X and set the Y over RS232 with a Crestron Contolunit. I use GX Developer 8 on a XP Laptop and figure slowly out how it works. I read the manuals i found, managed to send from the PLC to the Serial Program on my Laptop (Program named HTerm) But i do not figured out the sending. Can you give me some hint?   Greetings FT
  3. Connect PLC to Kepserver

    I have Delta 12SA2 PLC it has RS232 port and I have connected it to kepserver (by Modbus serial) and then factory IO Now my problem is that when I connect my PLC to kepserver the RS232 port becomes busy with the kepserver and not available in the ISPSoft and therefore I could not demonstrate factory io and my logic in run mode in the isp soft together like you do in your videos. My PLC don't have ethernet port but is there an option in kepserver or any way by which i can use the same serial port of the PLC in isp soft run mode and kepserver+factory io together so that I can simultaneously show the logic running in isp soft and application working in factory io to my students. I googled a lot and found some softwares which make virtual serial ports for a given serial port but they don't work and soon hang Please help me I am in a great need of it. Thanks in advance.
  4. OMRON PLC

    Is it possible converting Omron and Keyence plc's serial communication into Ethernet using serial to RJ45 converter?I need to connect these plcs with MOXA 5600 terminal service for communicating it to the Server.Thanks in Advance....!
  5. 90 30 CPU350 serial connection

    ok running into a issue here, so we were able to communicate with the processor to download a program. transfer went fine. upon cycling power, we can no longer connect to processor. we used LM90 for the software. i've tried removing the battery and shorting out the "mem clear" points on the board, however we can no longer communicate with the CPU. we have a POWER and OK light solid on the power supply. kinda stumped here if anyone has any insight.
  6. Hello. I am trying to make a serial RS 232C connection between Schneider Magelis HMIGXU3512 and Omron PLC CP1E. However, there seems to be a communication problems between both of the equipment. I am using cable XBT Z9740 for the serial communication cable. The format used is 8.2.N for both equipment. The baud rate is 115200. No Flow Rate is choose. Anyone can help with this kind of problems?
  7. Is it possible to use FX3U-485ADP-MB as a serial port to send and receive user defined string/data to and from a computer? I have a FX3U-32M PLC and two FX3U-485ADP-MB adapters. I have been using PLC with one adapter as Modbus Master. Now i want to use both adapters, where one will be Modbus Master as usual and the other I want to use to send and receive data to and from computer terminal (Example - Realterm). I have a third party 232/485 converter which works really well. Lets me just describe my requirement straight forward. I want to display process parameters on a windows computer based user interface (UI) and also set some variables in PLC from the same UI. The UI has access to serial ports of computer.
  8. I'm trying to understand the basics of using a serial to ethernet converter such as this Comtrol DM-EIP-2101, with Studio5000 code. Basically I have a weighing machine that only outputs data via RS-232 and I need to send that data to a PC that will process it through a Studio5000 program and have the data displayed on an HMI using FTview SE. Is it as simple as just connecting the serial and ethernet to the converter and it does all the work? Obviously checking ip addresses and firmware will need to be verified. The main thing I am unsure of is the process of passing the individual data packets from the machine to the Logix code on the PC,  things like what the weight of the item was, was it over weight or under, etc....  Would there be an AOI or tags built into the software for a machine like this Checkweigher? I've worked with much smaller items like Cognex Dataman cameras and I know you can just use their AOI that allows you to simply call a tag if you want to display information like if a scanned barcode was correct or whatever. If anyone has done something similar I'd appreciate any guidance. It can be difficult getting the information from the manufactures so I'm looking for answers anywhere I can. EDIT: I guess I should also clarify that only using one or the other (serial or E/IP) is not an option. It will be a serial connection from the Weighing machine to the converter and then Ethernet to the PC.
  9. I have OMRON CP1E PLC and I want to read memory address of PLC via serial communication. I want to use ESP8266 OR ARDIUNO OR PC Hyperterminal Please help me in any direction. How I should proceed?  
  10. PC send data to PLC

    Hello, i'm newbie for plc. i want to ask about PC/computer send data to PLC CP1E with serial communication (RS232). my wiring cable is: PC                         PLC 2                             2 3                             3 5                             9 4&6    7&8                               4&5 and if i send data from PC to PLC, my indicator in COMM is blinking. i think the cable have no problem. but if i send data from PC to PLC, the memory is not same as what i send and whatever i send data, the memory didn't change. i will attach my ladder diagram. what should i do?    New folder.rar
  11. G9SP Configurator

    I am at a client site that has a line with multiple Omron G9SP-N20S safety controllers installed and I need to make a modification to the system.  I tried to install the Omron Configurator and it asks for a serial number, and will not install without one.  Omron said that it is on the CD that ships with the unit, but the equipment manufacturer did not supply any of the CDs.  The only Omron solution is to order a replacement CD, that will take 5 days, which is 5 days too long as there is a hard stop in 2 days.  I have tried entering numbers found on the controller, with no success.  Does anyone have a better way, special contacts at Omron, to et it faster?
  12. Hello every one. I have three FX3U plc needed to be communicate over a wireless network. I'm using serial adapter FX3U-485ADP. I got E-byte data trans reciver E-30 for wireless communication. Now need help to setup the whole thing. Previously the PLC's serial connectors were connected through a flexible bus but when the platforms are running fast there is interruption in the  communication. So we want those PLC's to be connected over wifi.  Thanks in Advance 
  13. Here is a link to a thread on a recent post showing how to communicate serially to an Omron PLC using VB.Net. This uses the Omron Host Link serial protocols. (C-Mode Commands) It will read 10 DM registers and display them on the form.   http://accautomation.ca/implementing-the-omron-host-link-protocol-vb-net/ Here is the source program that can be downloaded. Other links: VB6 Program: http://accautomation.ca/how-to-implement-the-omron-plc-host-link-protocol/ VBA Program: http://accautomation.ca/how-to-implement-the-omron-host-link-protocol-part-2-vba/ Regards, Garry www.accautomation.ca
  14. PC-PLC CP1E - USB-to-SERIAL cable

    Hi,   I have a self-bought usb-serial cable converter for CP1E. Currently can't connect to my PLC using PC. CX-One says "Failed to the PLC". I am supposedly to use "SYSMAC WAY" as my Network Type in PLC settings?   EDIT: The CPU type is N30   I've checked the following settings: 1) COM number is correct ( as checked from windows Device Manager side) 2) Cable driver is installed, there is no "unknown" driver in my windows Device Manager 3) My RS232C LED in PLC is not lighted up.   Any other suggestions to check settings ive missed out would help, other than buying a new cable for the moment.   Regards, Summerstone
  15. Is it possible to add another AB Rockwell PLC to the network tree as a Generic Ethernet Module and use it as IO? Any idea where I would find information regarding assembly instance and size of I/O/C for AB Rockwell products? If possible, what are the pros and cons when compared to produce/consume and MSG instructions? Don't need to use it real world, just curious. Many thanks in advance.
  16. NX-105 Received Data

    Hello,  PLC: NX1P  Comm module: NX-CIF105   I am running a serial (RS485) network to control several motors. As a trigger for to read the serial port I am using the ( Ch1 Receive Data Exist) bit, which is an internal bit that's ideally should be energized when there's data in the Receive buffer. However, this bit isn't reliable at all. I am reaching out today to figure out if there's another way to trigger the receive command ( preferably without a delay)    thank you all  Cheers! 
  17. 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!
  18. mitsubhishi serial drivers

    Hello write now i am working with Q6UDEH PLC  project in which (nextgen 2000) 6021 card is used for conversion of serial to Ethernet data & vice versa , is it possible  by only installing the Mitsubishi serial drivers ?? or can anybody tell me how these Mitsubishi serial drivers works ??  
  19. mitsubhishi serial drivers

    Hello write now i am working with Q6UDEH PLC  project in which (nextgen 2000) 6021 card is used for conversion of serial to Ethernet data & vice versa , is it possible  by only installing the Mitsubishi serial drivers ?? or can anybody tell me how these Mitsubishi serial drivers works ??  
  20. Morning Guys, For my latest project I need to read a gas sensor via 485 from a Momentum PLC. I've been through the help files, but they seem to only raise more questions than they answer, they only seem to reference PLC -> PLC comms. I've had a play with the 'MBP_MSTR' & 'OUT_IN_MBUS' function blocks, but i can't seem to get anywhere, Has anyone got any examples of reading in data via 485, or can anyone lead me in the right direction?
  21. RS485 Async

    Hey guys I don't have much experience in PLC serial communication and I'm tasked to integrate 6 OP-905 scales with our EATON based control system. The scales are rs485 asynchronous serial communication, my concern is that if the device is not designed to be an RTU then I cannot use modbus. And if that is the case how do I talk to multiple scales using the async protocol. Has anyone done this in a similar platform? 
  22. 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!  
  23. Hello,             I need to communicate Power meters ( GE Multilin EPM 5500P) to  GE Multilin EnerVista Software. The present communication system uses Ethernet for communication from LAN Switch to Computer. There are a few existing Power Meters which need to be connected to the  Network. The Meters having output ports as RS485. I need to use a convertor for that right. So when I contacted GE they told me to use GE Multilinet Serial to Ethernet Convertor. But due to the price and unavailability of the material I am thinking to use a universal convertor. Is that compatible for Multilin Devices?? and In Case of using a universal Convertor does we need any other drivers for that. Please Help Me.. Thanks In Advance  mnetman-a3.pdf multinet (1).pdf PM-GE.pdf
  24. Hello everyone, I have difficulty to setting up the GSM configuration or the serial RTU configuration so that I allow you with another RTU. I use Schneider CPU Modicon M340 in conjunction with RTU communication NOR0200H and a Modem Schneider SR02 MOD02. This is the first time I'm working on this kind of project, want to help me, I'm stuck and I need a solution, thank you for your time.  
  25. Hi to everyone,    I have done an intense search on the web and this form, also went on to the download section here to try out a simple RS232 program, so far I can't get it work. Long story short, I am working on a PLC CP1E( w/ built in RS232) to communicate with the PC hyper-terminal . PC will send a string of messages to the PLC, then the PLC will convert the message to a pulse parameter, eg. computer will send ( 90, 40) to PLC, then the PLC will take the string 90 to pulses parameter( PLS2) and 40 will be the duration period. I am willing to learn and try out your sample program, let me know! THank you in advance.