Search the Community

Showing results for tags 'communication protocol'.

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Found 190 results

  1. Hi Guys, I need to send temperature data from PLC to LED Display through RS-485 communication, so How can I proceed further in this. Please guide me Thanks in advance
  2. Fatek PLC Communication Problem

    hy all. i am having an error while communicating with fatek plc. when i communicate it gives an error. " Com port open fail, plz check if this port is used by other programme when we online the PLC (Fatek/ WinProLadder). kindly Guide me   as it looks like port is already used by another program . and i dont know how to kill that program ..       
  3. Hello, I'm trying to read data from a PLC using TCP/FINS protocol. I am able to read the data in the memory area from a supervisor PC (using command 01 01) but I do not know how to read the information specific to this machine. Extract from the machine manufacturer's document: Name Data type Address/Value Usage comment Loc_in1 BOOL 1.00 In Local Input 1 Loc_in2 BOOL 1.01 In Local Input 2 Loc_in3 BOOL 1.02 In Local Input 3 UPS BOOL 3.00 Work UPS Input Int1 BOOL 3.01 Work Interlock 1 Int2 BOOL 3.02 Work Interlock 2 T1_LSB CHANNEL D20 Work UPS Hold time LSB T1_MSB CHANNEL D21 Work UPS Hold time MSB REM_1 BOOL H0.00 Work Remote input 1 REM_2 BOOL H0.01 Work Remote input 2 REM_3 BOOL H0.02 Work Remote input 3   This is the document I've written to understand the protocol: 1st frame to send: 46,49,4E,53 : ‘FINS’ 00,00,00,1A : Length(8 de l’entête + 18 de la chaine qui suit) 00,00,00,02 : Cmd (2) 00,00,00,00 : Error code (0)   Second frame to send 80,00,02,00 : ICF + RSV + GCT + DNA 0F : DA1-FINS node address of Ethernet unit (Server node=15) 00 : DA2-Destination machine address (0=PLC Main unit-CPU) 00 : SNA-Source FINS network address (0) FB : SA1-FINS node address on the PC side (Client node=251) 00 : SA2-Source FINS network address 01 : SID-any data from the source process identifier 01,01 : MRC,SRC-FINS command code 0101: Read memory areas 82 : Memeory area=Variable type: DM (Dxxxxx) 00,14,00 : Read start address (20) 00,01 : count (1) This shoud send the UPS hold time but everything is at  zero. Who could help me ? What is wrong ? Thanks  
  4. Delta plc AS228R

    hi i have a as228r delta plc and i want to connect it to two endress & hauser D400 flow meters over ethernet can anyone please give me sample code for ispsoft. the flow meters do have ethernet connections.  i want to read flow rate and flow total on the flow meters  please thanks
  5. Hello, everyone I have to query a SICK distance sensor from an L26CPU via the onboard Ethernet interface. I have created a simple protocol which I start with the function block SP_ECPRTCL. Unfortunately it takes at least 25ms until the next telegram is started. The sensor responds within approx. 1.5ms. Does anyone know whether that works faster or is that a limitation when using the predefined protocols? Sensor manual:  OD5000, 8021391 (sick.com)  (Chapter 7.4) I am grateful for all the hints. Thanks and regards Dave SICK_Protocol.tpc Messaufbau_vTest.gxw
  6. Monitouch HMI slow screen

    Hi there! I'm having some issues with a FUJI MONITOUCH V9100iSD HMI that communicates with a CJ2 PLC via Ethernet. This HMI is a migration from a previous V810iSD model. The thing is that the previous model worked correctly, but when using the new one, the HMI seems to be pretty slow when switching screens, for example. All parameters are the same, and after reading Fuji's FAQ, I've run out of ideas. Have you faced the same problem? Thanks in advance!
  7. Hey! Is there any possibility to acces the PLC variables in GXWorks from another program? Like I want to read and write the I/O-s or Merkes in the Mitsubishi PLC from another program Could someone help me with this? Thank you!
  8. I am working on project where I need to program delta PLC to receive ASCII code from scanner. I anyone know how to program it helpls me alot.
  9. Omron PLC Python communication

    Hello All,    I am college graduate student and I know little bit of cx-programmer for modifying existing program. I have master CJ2M CPU34 PLC connected with three CP1L PLC. All 4 PLC are connected via hub through Ethernet cable. I want to read/write some memory data to/from PLC through Python programming. As I am new to PLC and Python I have not much idea regarding omron PLC and python communication. So is it possible to connect python with master/slave PLCs directly? If yes then how can I communicate? I was trying with cpppo library to connect with PLC but I could not connect it.  I have attached the master PLC communication setup for the reference.    Any kind of lead/help is appreciated.    Thank you in advance.    -Yash
  10. QJ71E71 100

    Dear Anyone. Anyone can help me. How to communication two plc Q SERIES MITSUBISHI.With QJ71E71 100.It Can Read/write .Can Show me. example instruction command ladder.or parameter CPU 1.D0 to d300. CPU 2 D400 to D700. Two Plc can Communication  read / write data register. Thanks you for your attention.
  11. 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.
  12. MPI Connection problem

    Hi there. Recently I've experienced problems when connecting to a S7-300 PLC via MPI/PROFIBUS. I use a PG with CP5711 processor. The thing is that I'm able to connect when I plug the 6ES7901-0BF00-0AA0 cable (male to male) directly to the PLC connector, but when I try to do connect to a PLC that has any device connected to the DP port (let´s say an inverter or HMI) I get 33:17075 error. PG/PC Interface it's correct, in fact another PG with the same configuration is able to connect through the already connected DP device's cable. Station number and transmission rate is all correct.  So I tried the Simatic NET Diagnostics Test and I got error 0x0313 and since the mentioned parameters are correct I refered to this link:  How do Diagnostics and Remedy work in STEP 7 when an online connection with the CP... - ID: 11492532 - Industry Support Siemens Where they say the following:    I've searched for this readme file but can't find it, and there are no useful results when looking for it on internet.  Why am I able to connect directly to the PLC but not when another device is connected and I have to use the female connector of the DP connector itself? Should I try to reinstall CP5711 drivers? According to Windows, I got the last drivers for the CP.    Thanks in advance and I hope you can help me!
  13. Hello,   Any one  have idea how to read and write variable for Schneider tm221 plc with Modbus function codes 3,6,16. I attached file for power supply communicator with registers, I need to adjust power supply from 25% up to 100. Please need help. Best regards,   Chyngyz   Modbus OPERATING INSTRUCTIONS.pdf
  14. FX-2NC-32MT Battery & Communication Cable

    Hi, FX-2NC-32MT PLC need to change Battery, Can you please tell me the battery model no? Which communication cable require  for FX-2NC-32MT PLC upload or download program? Thanks & Regards Sohel Ahmed
  15. CompactLogixL24ER

    Dear Experts Request to let me know in case it is possible to get communication software to communicate with CompactLogixL24ER. As per my understanding Rs Logix Studio 5000 is needed , version number required is V21.000 Thanks and Regards
  16. Hi there! I've been working with NB HMIs with good result. But today I loaded a project to a NB7-TW01B and it feels slow, both offline and online. Switching screens and reading/writing take around 1sec or more. It first had some bmp images created with .bmp and .png files, so I tried using vector graphics instead, but didn't get any better. I don't have another NB to try it right now so I'd like to ask you if you've been in this same situation before or what could be causing this. PLC is CP1L and communication it's via Ethernet. Both devices are actually pretty close (cable is less than 3m) and the previous HMI (Pro-face GP) felt a lot faster. Thanks in advance!
  17. Delta plc Communication Issue

    Dear allI have DVP14SS211R series Delta PLC Which is having 24V DC supply voltage. I am using PLC as master and My end device as slave. My slave device set device_iD=1I am using Modbus RTU protocol for Function code1baud rate =9600parity =noneStop bit=1data length=8I would like to know how to send request with Function code 1(Read coil Register). i have attached code reference. Communication block it wont give error it shows 0 .means No error
  18. Hey Everyone,   My company decided to purchase a piece of equipment from China, and I have the pleasure of updating its terrible existing controls. We were given the PLC program by the manufacturer, so I was able to make my changes pretty easily - or at least that would be the case if I could actually connect to the dang thing. The source program is indeed openable and editable via GX developer (the original configuration shows it as an FX3). I figured connecting should be straightforward, but I was wrong.    I initially used a serial/usb converter that I've used on some older Allen Bradley equipment (which worked fine for that). However, after no luck using it on the "Mitsubishi", I purchased a different cable that I found recommended on this forum (Tripp Lite USA-19HS - https://www.alliedelec.com/product/tripp-lite/usa-19hs/70101537/?gclid=Cj0KCQiAj9iBBhCJARIsAE9qRtB_n8TVAnJdFyYokoEu42W6H6LaT4kVsgJQI1qvPUsUF3rFviKpbt0aApLHEALw_wcB&gclsrc=aw.ds). Still, no luck. I've tried 7E1 and every baud rate possible, as well as some other bit/parity configurations (and yes, I've verified that I'm using the right com port, as well as tried moving the converter to different ports and trying those). Nothing seems to go through.  I have almost no experience with Mitsubishi beyond a couple of FX5s (which have worked fine, but I connect to those via ethernet). Any help would be greatly appreciated; if I can't make these changes, I'm going to end up rebuilding the whole cabinet with a PLC I can rely on.   Thanks in advance.
  19. Hi, I am doing a project to extract analog data from Kashiyama pump through RS422 port. I am using QJ71C24N to establish the connection. But it encounter error code 7D00. Can someone help to take a look what go wrong?
  20. Modbus with CJ1W SCU31-V1

    Hi every one, I want communication Inverter mitsubishi D700 with module CJ1W SCU31-V1,  any one give me a correct solution and send any sample program. Thanks
  21. Error Indicator on FX3U-ENET-ADP

    Hi all, I have finished installing ethernet adapter module FX3U-ENET-ADP on the FX3U-48M PLC. From the ethernet module, i connected it to a wireless router and then i am planning of connecting to the ethernet module using GXWorks 2 on my laptop through wireless router. On the ethernet module, the error indicator LED is on (red). From the FX3U-ENET-ADP, it means that there might be setting or hardware errors.  I am asking if i have missed some steps on the installation process and if any of you have experience with similar problems. Thanks in advance for the answers.
  22. Good day everyone!   I have some question relate with above subject. While i try make protocol for the CJ2M PLC.  i found out "Primary Expression (yN+x)" function but i cannt understand what`s this for. even i tried to find in the reference manual. i can not.  you can find it "Message Editor" -> "Message Variable" -> "Variable" sorry i tried to upload picture many times but it kept showing failed to upload.    hope so i could find the answer. thank you!
  23. Hi all,  I want to ask some questions regarding Ethernet Communication with FX3U PLC series. I have 2 PLCs of FX3U series (FX3U-48M and FX3U-64M) and I want to monitor its data (input and output) using ethernet communication in real time. My questions are: 1. Does FX3U PLC have ethernet port so I can connect it directly to my Laptop/PC? 2. If no, do I need to use FX3U-ENET-ADP and can it be used for 2 PLC or only 1? 3. What software do I need to use to configure the communication between PLC and FX3U-ENET-ADP? 4. Does this configuration change the existing PLC program? 5. Can i transmit the data wireless-ly using some kind of ethernet to wifi adapter and what additional hardware do i need for that?  
  24. Check serial connection to Omron PLC

    Hello, I am building an application in CitectSCADA and I want to communicate with an Omron Sysmac CS1G. The connection between the plc and the Citect computer is through an ethernet to serial adapter (the computer doesn't have com ports on board). I'm having some difficulty establishing the communication and I want to make sure that I can actually reach the plc. Is there a way to check that the computer can reach the plc over the serial connection without using CX programmer? Maybe using Hyper Terminal, Putty or something similar. Thank you, Liron
  25. Greetings everyone. I'm new here. Hoping to get help to operate the Omron V400-R2 barcode to the Mitsubishi QJ71C24N so that they can communicate the two devices with the correct method. PLC: Mitsubishi: Q03UDVCPU; barcode: Omron V400-R2; serial communication module: QJ71C24N. I use RS 232 communication cable, I have tried using predefined protocol and non protocol procedures but still can't communicate the two devices. I really appreciate your help.