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  1. Hi everyone,  I am new to Mitsubishi PLC. I am trying to see from where Run or speed commands goes to Servo. I have MELSEC FX2M-32MT with FX2N-1PG cards for the Servo and I am using GX Developer 8.91v  Also, I would like to mention that initially I found out that BATT V light was lit so here what I didi. >I replaced the battery within 20 second while powered ON. Before changing the battery I took upload of the program successfully.  >I have cleared PLC memory and re downloaded the program.  > Checked Memory addresses M8005 8006 both are Low.  Now, when I am trying to run  my machine it is not giving output to two Servos while a conveyor operates when started from the HMI so it means program is inside PLC, right ? Program is attached if someone wants to have a look.  labeling mc 300322.rar
  2. Here is a post that we recently completed on the Automation Direct USB to RS485 Adapter.  The USB-485M is a 2-wire USB to RS-485 serial communication adapter for RS485 use. It does not require an external power supply or complicated configuration. It has a Type A (plug) USB connector for the computer side and a universal female RJ45/RJ12 modular connector. This will accept RJ12 and RJ45 plugs.  The USB-485M supports multiple baud rates and is USB V2.0 Compliant. Read the rest of the post... YouTube Video on the installation and communication to a Solo Process Temperature Controller via Modbus RTU. https://www.youtube.com/watch?v=aWE05ZNZNXw Let me know what you think, Garry www.accautomation.ca  
  3. RS485 COmmunication

    Hi all, i am looking for a solution to connect 7 plc with a single scada. is it possible according to my topology diagram ?   Kindly make me suggestion and if you have any information regarding the solution then share .   Thanks in advance. 
  4. Good Morning,   My name is Joseph Rhodes, I work as an electronic technician for the City of Tuscaloosa at the wastewater treatment plant. I work to keep the plant up and running as well as 64 lift stations spread out around Tuscaloosa, Alabama. A majority of our lift stations utilize Verizon Cell Modems, RV50s to be exact. It's rather easy connecting remotely to these lift stations as I can configure a driver as an ethernet / ip driver then associate an IP of that lift station (ex. 10.181.3.104 is lift station 104, 10.181.3.105 is lift station 105, etc). However, for the lift stations that do not utilize cell modems. We use GE MDS 9710 and 9810 radios. It is these lift stations that I have yet to figure out a way to connect remotely to the LS RTU PLC. All of our lift stations use Allen Bradley MicroLogix 1200s or 1400s. These lift stations that use the MDS radios communicate information to water tanks then that information is sent back through other channels. I was wondering is there a way to associate these lift stations on RSLinx that use GE MDS radios ?   
  5. I would like to send ascii data  to other devices using RS232 interface. and the example format is "0009" (it is product counter machine marking). how can I do this? I am using q03ude, I usually convert 1001 to ascii using BINDA and use the last data (01). but, when it double word data e.g. : 100009 the last data is 9 and null, not 09 
  6. OT: Mitsu web redesigned

    Hello, since they redesigned the mitsubishi FA website I am unable to find software updates. Is it my fault or did they forget to put them in?   Thanks
  7. GOT2000 as MODBUS TCP slave

    I have this setup: FX3G CPU connected to GT2103 through RS422 (CH1). GT2103's ethernet port connected to LAN and set up as modbus TCP slave (CH2). I want to read/write PLC word devices using a modbus TCP client, from a PC. The HMI is acting as a gateway between PLC and PC. I used the Device Data Transfer function to send PLC's D register values to GT's internal GD registers. D0....D9 ==>  GD0....GD9 After some tries, I get valid response from the modbus slave. Reading the holding registers 0....9 (40001....40009), I get only zero values. Those registers can be written back with different values, correctly. I'm sure I didn't understand correctly the modbus address mapping to GT's internal memory. Can anybody help me? Thank you.
  8. PLC DEVICE NET

    how to use device net in FX5U SERIES PLC WITH FANUC ROBOT DEVICE NET CARD A20B-8100-0490 /03B
  9. Hello! I just recently started learning about PLC's at University. While using Gx Works 2, how do I turn on auto complete for existing variable names? With this I mean, after creating a variable, for example bSystem_Started, if I want to use it again, what setting do I need to change so that by just typing "bSy", a pop up appears saying the whole name "bSystem_Started", so by just pressing enter it auto completes. Thanks in advance, Greetings, Patrick.
  10. MELSOFT RECIPE

    Hello,  I got problem with melsoft GT Designer 3. I created a project and i must go threw recipes. I think I did everything well but my Record No. doesnt work as it should...   https://drive.google.com/drive/folders/1p06cnkcfnmodmuLDfrhlshtlYgbUsFnj?usp=sharing   Here is video with presentation as it works and GTX file. It have to be done with this kind of recipe. I dont want standard recipe table I think its pretty easy and i have small error Thanks
  11. Hi all, I am trying to communicate KEPServerEX with FX3GE vis UDP protocol. I have tried but unable to get data on Kepserver. While configuring communication properties in PLC we have configured PLC IP, PLC Port, Destination IP, but unable to find correct Destination Port. Although we tried various port nos like 49320, 57412, 57512, 56233, 1025, 32402, 57212, 57012, 57612, 57812 but there was bad quality data using UDP For same PLC using TCP/IP we were able to read all tags properly. This change in communication protocol is required as there are some PLCs whose communication port drops after few days of connection establishment (no error logged; can be re established with just restart). Someone from Mitsubishi said to try communication via UDP as it continuously fetch data regardless of kind of response received. If anybody has tried or have any solution, please do share.   Thanks
  12. hello everyone, I using stepper 17HS2408, microstep driver, modul motion QD75D2, PLC QD3UDV,, i've been trying to use program Absolute in axis 2. When I trigger the command to run absolute program the current value is running but the stepper motor still not moving, is there any suggestion about this?
  13. Question. After install 3 months ago...What would cause a plc module to stop working during production, not let people apply settings and revert back to old settings and permeters. Using some Intelligent design functions. Also it would not let the backup be applied. 
  14. Hi everyone. I need help with iQ-R system. Is it possible to connect an additional expansion bus to an existing system without powering down? Also, can I install new I/O module (RX40C4) to an existing system at hot state (like a hot swap)?
  15. Scada/ Site management

    Hi,  I have basic experience with PLCs but have a degree in electrical engineering. I have landed a job which requires me to advance my plc knowledge. I am based within the UK and need some advice on how to go about a solution to a problem. The site I am doing this for needs a site managment system. The site is within food production, this would be monitoring of mostly trips and faults within a wide range of industrial equipment (Pumps, compressors, fridges). The site is mostly Mitsubishi and would like one centralised portal within the workshop to view all of the equipment availability. Thank you.
  16. Encoder for fx1n

    Hi all! How can I use two AB phase encoder at the same time. I use Mitsubishi FX1N PLC, and I would like to use a high speed counter. I think the plc has 6 high speed counter input, but I cant use only one at same time.
  17. Mitsubishi Fx2n Modbus rtu vfd

    Hello everyone, may you all bless with the best. Can anyone please help me on connecting and programming In Modbus rtu INVT CHF-100A vfd with FX2n having rs485-bd moblue. I want to connect 11 vfd and one fx2n plc also 
  18. Byte to Word

    I am having problem working with Mitsubishi FX5 PLC. How to send two bytes data into one word. I want to send first byte into lower word and second byte into upper word.
  19. Byte to Word

    I am having problem working with Mitsubishi FX5 PLC. How to send two bytes data into one word. I want to send first byte into lower word and second byte into upper word.
  20. i wana connect gs2110-n with a2ushplc-s1with rs422 icant find diagrn wireing ? can you helo me please...
  21. Analog

    I have plc mitsubishi A2USHCPU-S1 and there is already a program in it. The problem is, the analog input data doesn't want to be saved. How do i find the analog address instructions? Can anyone help?
  22. Hi, I managed to communicate a Kinco HMI with a Xinje PLC (XC3-48R) using RS-232. Also, I've established connections between the both equipment and my personal PC, for programming purposes. Currently the uploading and downloading, PLC bits reading and writing happens normally. But, when I disconnect any of the equipment from the PC, (HMI or PLC), the communication is lost between the PLC and HMI.  How can I solve this and, remove my PC from the network by making the HMI master and PLC slave ?    The software I use for programming is, (XCP Pro, Kinco HMIware)  
  23. Can someone help me how to transfer D memory in gx works 2 but only 8 bit (Mitsubishi D memory is 16 bit cmiiw) ?
  24. FX3GE Communication issue

    Hi all, There's an issue I am facing for multiple FX3GE PLCs in a plant. Communication breaks between a PLC and OPC server. PLCs after few days (4-10) does not respond over ethernet. No ping response is received over network as well as when checked one to one direct connection. If I restart the PLC the connection is resumed and again after some days it goes down. Error LED on ethernet port does not glow red (no indication for error). If anybody has faced similar issue and has resolved, please share.
  25. Q and iQ-R series

      Hello,  I want to know, if it is worthwhile to transfer from Q series to iQ-R? Currently our equipment is using Q series, which ss a vacuum coating equipment with about 10 power instruments, 20 gas controllers, and pumps and so on. As for the analog and X, Y points, Q is quite capable.   I can not see any advantage to switch to iQ-R, but some people want to. So I want to know,       1. will Q be outdated in the near future?       2. will use iQ-R cost much more than Q? including peripheral units.       3. has iQ-R really been widely adopted?       4. thoug iQ-R may be powerful, I think use multiple middle size CPU's can be more advantageous,              is this right? Many thanks in advance. Ting