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  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. Dear All, At the moment, I have project with PLC Delta and HMI Proface. I design HMI GP2500 by GP-PRO/PBIII ( V7.0). I see in List Device PLC of Software  not support PLC Delta.  Can you tell me how do you connect or Software HMI Proface ( Gp2500) support PLC Delta ? Thanks you very much.
  3. 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 ..       
  4. 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  
  5. 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
  6. Hello, I'd like to ask for a technical confirmation on using MODBUS TCP in a M340 + Fiber Converter Card (BMXNRP0200C) or Switch (ADAM 6521) + Fiber Optic patch cords and cable topology to communicate with a SCADA system. The main objective is to provide a fiber optic connection point inside a control panel because it is located in a area prone to electrical interference. The protocol to be used would be MODBUS TCP. We have two simple topologies in mind but we are not sure if they are feasible. So i'm asking for a little support about it. Considering the attached simplified topologies (Drawing1.jpg), am I able to use MODBUS TCP to communicate a M340 with a SCADA workstation with no problem? I'm not sure if the protocol allows this kind of change on the physical medium like if it was pure Ethernet.    
  7. How to enable modbus in mitsubishi plc

    hello there, I have Mitsubishi FX3G 24m PLc which has an ethernet port for communication port. how to enable Modbus TCP/IP for data collection of sensor values and sending it to a 3rd party. If this has been answered pls link to the thread.
  8. 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!
  9. 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!
  10. Hello, Has anyone got an Omron PLC NX1P2-1140DT1 running with Modbus TCP/IP? I tried to reach Schneider several times, but there is "live" or email to discuss or get help, has to go to thru someone from Mexico then he will email to France. All of my attempts was lost, I can establish a "CONNECTION" but I can't READ the Coil - I got the error "Gateway Path Unavailable" (that means  "Used alongside gateways. Basically, this code means the gateway couldn’t allocate an internal path to process the request. Therefore, the gateway could probably be misconfigured or overloaded") My program is based on the MTCP_Client_NJ_E (Revision 2.3 date 23/07/2021 - JP Viskovic from France) I can read the coils using MODBUX Doctor (France) but I can't make work with Etherway. Any advice is welcome. Thanks   MTCP_Client_NJ.slr MTCP_Client_NJ_E.pdf
  11. If this has been asked and answered already, please point me in the right direction. I have a production line that uses Gefran Geflex temperature controllers on a Modbus and Machine Net communication system. The main control panel (MCP) is the master on the Modbus and communicates directly with 3 slave Geflex units (Group Leaders?) which then communicate with the others in that group via a Gefran Machine Net type interface (ribbon cable daisy chained from one unit to the next). The issue is twofold: These temperature controllers are slowly becoming harder to find AND they are a PITA to change out because they have to be put in place and then properly addressed using software on a laptop. This means more downtime waiting for someone who knows how to set these up to get there to do it say on a weekend/middle of the night type situation. (I do like my beauty sleep). I'm looking to replace these units with standard SSRs and control them with a PLC (P-2000 most likely). What I would need to be able to do is interface between the MCP and PLC in some way that the MCP still believes it is controlling 24 units (24 Modbus IDs) and have the PLC receive the reads and writes from the MCP and know which ID it was meant for in order to set the SV and respond with the PV and/or alarm codes as that ID. I hope that all makes sense. Basically I need a way for a PLC to act as if it were 24 separate Modbus slave units. Could I just use a separate HMI next to the MCP? Yes, but there are temperature dependent routines in the main operation of the line (extruder run inhibit, etc.) that requires the information reported back on the Modbus. I've looked into Modbus Gateways but the MGs I've found so far don't seem to be capable of assuming the role of 24 different slaves and interfacing with the PLC in a way that would allow the individual control.  Any ideas would be greatly appreciated.
  12. Hi every one. I have strange problem with Modbus communication in Citect 2018. I am communicating to the site switches through Modbus TCP protocol using MODNET driver and reading its sates. I am reading data from Input registers (registers addresses starts from 3x). In default, MODNET driver initializes communication trying conecting to holding register 40001 so I changed initialization in citect.ini to address 30001 because driver didn't want to establish connection because switches don't support holding registers. Now, connection to switches is working but only when page is open where I showing data from them. When I change the page, Citect loses communication and inform this showing alarm on HW alarm page. When I again open page where I show read data, communication back again. Where could be a problem? I will mention that I have more different Modbus TCP devices in project configured and with them don't have such problem. The only difference is that I am reading from holding registers and initialize parameter in citect.ini is not defined for them as for switches.
  13. 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.
  14. Hello All, Please Help Me.. How I can to connect Omron CP1L-M + CP1W-Cif11 with Mitsubishi Inverter D700? Thank you. Omron modbus belum fix.cxp
  15. 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
  16. Hallo, i want to connect PLC Omron CP1E to indicator weighing scale with modbusRTU connection and i have a CP1W-CIF11 module to connect indicator with CP1E. ,but I have no experience in RTU modbus communication in the PLC. How do i start?   *i just need output: 1. Coil (Reference No = 0. Output bits) for input switch with address 3 (Tare). 2.Input Status (Reference No = 1) for output lamp with address 17 (stable) 3.Input register (Reference No = 3) to read data with address 5 (gross weight) 4. holding register (Reference No = 4) to write comparison data with address 17(over) page 85 - 94 in attachment     ad4402_manual.pdf
  17. 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.
  18. Hi guys, this is my first topic on this forum. I need an help with modbus communication through NX1P2+CIF12 and slaves inverter. I have never used this board, so i need an example to understand. Thanks
  19. Has anyone successfully used a 1783-NATR for Modbus TCP communication between a ProSoft MNET card (in the ControlLogix rack) and a Modicon Quantum? ProSoft MNET:  10.x.y.z Modicon Quantum:  192.168.1.x There is one (1) ProSoft MNET and four (4) Modicon Quantum's. NOTE:  I know there are other devices that support this behavior...the NATR is the suggested standard hardware.  We are getting various responses from distribution and support.  ...I was hoping someone in the community could confirm.   Thanks for your time!  
  20. Hi I'm trying to set up Modbus RTU communication between FX3U PLC and a weigh module. I would use the ADPRW command using 0X03 to read the 16 bit Holding Register but in the weigh module the Data Address/Holding Register of the value I want to get is 400047 - 400048. How to translate the value in 16 bit?   Thanks, Fabio
  21. 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.
  22. Hi,   we have a Mitsubishi PLC Fx3U-128MT and a A&D weighing module AD 4212L. The weighing module supports MODBUS RTU communication via RS-485. We are looking for the most affordable and simpler way to establish communication between PLC and weighing module. At pag 20 of the manual " MODBUS Serial Communication Edition " https://dl.mitsubishielectric.com/dl/fa/document/manual/plc_fx/jy997d26201/jy997d26201g.pdf there are three options of communication equipment. According to your experience, what specific interfaces do you suggest us to invest in? Thanks    
  23. 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!
  24. 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
  25. 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