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Showing results for tags 'now a software solution is available for your modbus (mb) needs in rockwell/allen-bradley control logix or compact logix (clgx) family processors instead of a traditional 3rd party hardware like prosoft mvi-56'.

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Found 401 results

  1. CJ2M-CPU35 and LS drives

    Hello, I want to do communication between CJ2M-CPU35 and LS drives. I am new to Omron.I searched the manuals regarding protocol macro.but it's bit confusing for me.please send if anybody have the sample program and document so that I can do it.Please support. Also I need to communicate Citect SCADA with CJ2M-CPU35 on Ethernet, please send me the documents if you have. Thanks
  2. hello everyone,, I use the QD03UDV PLC and the modbus QJ71MT91 module, I want to test the module using modbus poll but it fails continuously, and when I upload the program to the LED notification PLC "COM.ERR." the module is ON ... but in GX Works2 I have no errors .. why is it like that, can someone help me?          
  3. Good Evening, wanted to introduce myself. I've been in the Electrical, Instrumentation and Controls field for 25 years. I'm looking for opportunities to build control panels, any info will help.
  4. Hello, I'm using Allen Bradley Micro850 , 2080-LC50-24QWB. I wrote a program using Connected Component Workbench which reads certain indications and controlling contactors. My customer would like to connect that PLC to a PC by an Ethernet cable RJ45 and read those input registers and write those output registers into his application that he had built. He would like to know the commands in order to read or write the data and the TCP/IP data structures and frames. I would like to have the registers mapping of this PLC as well. i have been searching this information in the data sheets and have found none. i hope you could help me or at least instruct me becasue that's really urgent. thanks in advance.
  5. Hi, i uploaded program from my Allen Bradley 1400 PLC. when i tried to go online, a notification pops up showing program in processor has changed causing offline state do u want to upload, when i upload the same information comes up Uploading from PLC.pdf
  6. Square Wave Problem With Micrologix

    Hello all, this is my first post. I am using an AB Micrologix 1400 (1766-L32BXB Ser C FW 21). I was trying to generate a pulse train using the PTO instruction. I have modified PTOX funct. file. The ladder is just a simple XIO followed by PTO, (The Quick Start ladder from 1766-RM001). When I looked at the output waveform on my oscilloscope, I noticed that it wasn't a square wave. I decided to run it at several different frequencies to see how the wave form would change. At 10Hz i got a square wave. As I increased the frequency the falling edge became sloped and almost horizontal. Is this how the output should behave? The data sheet indicates a max frequency of 100kHz, but at frequencies over 150 Hz. The wave form looks like the output of SMPS. 
  7. PLC as Modbus Slave

    Is there any function for Mitsubishi PLC to perform as a Modbus Slave?
  8. hello.   I've been trying to communicate this omron plc CP1L-EM30DT1-D, with a yaskawa inverter cimr-vu4a0004faa. but i can't figure out how to make de correct mov or configuration in de DM. i need to run/stop, change frequency.    some help, please. :) 485PRUEBA.cxp 485PRUEBA.opt
  9.  Hi, after implement the following steps to configure my Allen Bradley 1400 programing logic controller, I tried uploading program from the PLC, a got a notification displaying (no respond from processor at selected path/node) please will appreciate any help to rectify this error uploading program from AB 1400 (1).pdf
  10. details: panelview (2711P-RDT15C) connected to "switch A" (ntron p/n: F-716TX) "processor A " (1756-L62) is connected to "switch A" "processor B" (1756-L73S) is connected to "switch B" (ntron p/n: F-716TX) "switch B" is connected to "switch A" I'm trying to use a single panelview to communicate to 2 separate PLC processors (separate chassis). When I go to add the shortcut in factory talk I find the "processor B". When I connect my laptop to  "switch A" I can see every thing in RSlinxs.  Any one experience this issue or know how to make this setup work? Maybe there's a switch setting that is not allowing RSlinxs enterprise in the PV to see both processors? 
  11. Hi  I have a MSG instruction which checks the status of the DLR network which I have attached as an Image below Message Type - CIP Generic Class 47 ,Attribute 0,Instance 1,The destination element is a SINT[57] called Services_DLR My question is, how do I interpret the results.  For example Services_DLR[1] is the network status, but I have seen a value of 0 when the ring is okay but I have also seen values of 1 and 4 and don't know what they mean. I assume 1 means ring fault but I do not know what 4 means etc. or  The last active IP goes to Services_DLR[17] but I would not of known this, only the code was wrote by someone else. (Image attached) On page 189 of https://literature.rockwellautomation.com/idc/groups/literature/documents/um/20comm-um015_-en-p.pdf I can see the DLR object but I dont know how this populates my SINT array or what each element is for so if someone could explain or point me to some documentation that can explain it to me, i would greatly appreciate it   Hope I made myself clear, I am new to PLC programming so just looking for some guidance   
  12. Hi there, Im having issues controlling ATV 320 VSDs over Modbus RTU with a M221 plc, does anyone have any pointers for me to look at? I believe I Have set everything up correctly but when I run the program on the plc the atv's just stay in 'NST' state I have included screenshots if they are any use   My speed reference in this example is taken from the memory word %MW0 which I am inputting via a HMI   I have addressed all my ATVs accordingly in there setting with the correct Modbus parameters and selected Modbus under the FR1 configuration, am I missing anything?? Any help is appreciated as I am really struggling   Tom
  13. SLC-500 Power Supply Short?

    Anyone have experience with the old SLC-500s? I have one machine that is about 13 years old and I think they used a new old stock SLC-05/04 when they built it. Anyway I had a battery error, which makes sense since the battery was very old, and I lost my program when I tried to replace it, which makes sense because the capacitor which is supposed to hold the charge is very old. When I tried to re-download the program to the PLC, I could not connect, I realized my issue now was no null modem... and my driver not working on my RS-232 to USB converter. My question is:  What is the port above the DB-9 port used for? It was labeled PROG, so when my DB-9 serial cable didn't work I tried a serial cable for a mitsubishi FX series on the top port... and.... my power supply died. Is this a common thing on SLC-500 power supplies? Can you short them by using the wrong cable? The weird thing is the fuse on the front was not blown. Is there a fuse inside I can get to and replace? We are planning on just keeping this machine a few more years so we don't want to upgrade it. The CPU was fine afterwards.
  14. Hi all, I am new AB family, currently got into a new project but i have following doubts, Please clarify my following doubts. Project Details : I need  to implement 21CFR part 11 Compliance in AB HMI (1&2) -  2711P-T10C4D1 & 2711P-T6C5D As per my study, i understand that 21CFR can be imlemented by FactoryTalkView(FTV) ME edition V10.00. But HMIs currently available are programmed using FTV 5.0 version. Can we upgrade the FW version of HMI and convert the old HMI backup (from FTV 5.0) to new Backup (FTV 10.00) and load it  without disturbing the old backup HMI screens/settings ? So, Please give me solution .... If you have datasheets, documents, Videos also , kindly share with me. Thank You in Advance, Thanks & Regards, M.Monish Kumar monish.uatpl@gmail.com  
  15. Hello - I've recently started my adventure into PLC programming and I've found this site to be very helpful. I took on a project that requires control of a cylinder - the short and skinny is that the cylinder will have to provide position feedback and stroke to various set lengths determined by position of a selector switch. So - If position 1 is selected, the cylinder will stroke 20"inches. If Position 2 is selected, cylinder will stroke to 25"inches - so on and so on.   My questions is how to best go about this process. I may be having a brain-block and not viewing this clearly, but something is not clicking for me and wanted some advice. Planned on using Allen-Bradley's Micro850 PLC (had one on the shelf, and CCW software is free so why not). Thanks
  16. 1756-L55/A Controller

    Respected Friends, Good day. I face a serious issue please help me to fix the problem.  We have a 1756-L55/A controller with 1756/M13 A memory card. after 2 or 3 months the program washout and the LED status on the controller are following 1. RUN --- SOLID GREEN 2. I/O--- OFF 3. RS232 --- SOILD RED 4. OK --- SOLID RED 5. BAT-- OFF 6. FORCE-- OFF  At that time CONTROL NET MODULES OK Light for Chanel A and Chanel B are also blinking and communication not established via control net and serial port AB-DF1. I switched off the power supply and after 10 second again power up the controller then OK LED becomes solid green.  i download the program and its run fine. But the problem is still there. In the controller properties the major fault shows  TYPE 01 [ POWER UP FAULT] CODE 60 [NON RECOVERABLE FAULT] what are the possible reason for wash out the program from the memory?  At that time version 16.03 firmware installed and the rslogix program convert from version 10 to version 16.03.  Is 1756 L555/A with 1756/M13 A support the version 10 firmware? i ask because the original program is in version 10 if its supported then i update the firm ware and download the original program.   Hope you will help me in this issue. Regards
  17. I have the following for sale. I would prefer to sell as a lot. I can send pics if there is any interest. EX40 + 20 IO Extension with 2 Unused output PCB for ext unit. 2 EX40 Plus PLC. Timer Counter access unit Operational. With 2 PCB with errors showing. Handheld Programmer (Squeekbox) excellent condition. CutlerHammer Original software with hardware dongle. Some spare parts, they were operational before I used for testing various functions. PM ME IF ANY INTEREST.
  18. 1769-SM2

    Hello. I have a communication problem between an L30ER and SM2 module. It gives me a message error 16#001e, extended err code: 16#0000_0002, Error Text :Embedded service resulted in error. I have a Lovato network analyzer connected to SM2 module via Modbus RTU, on channel 1. The setting in the MSG instruction are: Configuration:Service type - Custom, Message type - CIP generic, service code 4b, Class 33f, instance 0, attribute 0, Source CH1_REQ[0] - INT[10], CH1_RESP[0] - INT[10]; Communication: slot 4, port 2, channel 1,  Connected - not checked. baud rate is 9600, DSI/RTU is 5, format 8-N-1. the channel led from the SM2 module is flashing. I read the value at a 2s. The rung is: XIO.TON.EN+TON.2s.EN+MSG.EN. The Cable betweenSM2 and Net.Anal is a CAT5, pins 4(A) and 5(B) Maybe someone has a clue.
  19. Modbus Addressing in Weintek HMI

    Modbus addressing in Weintek HMI to poll data from Temperature sensor through RS485. In my system i have connected Temperature sensor to I/O Scanner has output in terms of RS-485 which directly connected to COM3 Port pin. No. 6 (as Negative) & 9 (as Positive) of HMI (Model No: MT8071iE) and HMI connected to PC via ETHERNET. I want to read temp on HMI screen via MODBUS protocol. So, can you please provide me instruction about addressing of MODBUS register in Easy-Builder Software so can read data of corresponding register. Because when i do compile i got an error like " Device no Response". I hope i will get reply from your side as Fast as possible to overcome this problem. Thank you.
  20. Hello I have a scenario that's been bugging me for some time now. The scenario consists of a Micrologix 1400 that I need to control it's output from modbus/tcp. In detail what I really need is to be able to manipulate the O0:0 through modbus/tcp. The PLC would be the master and I would be the slave that triggers the connection to the master. I'm using a Modbus-Client on my PC and that should be the slave. Any idea as to how I can manage that? Currently I can send data to the master but everything is "stored" on B10 and I have no idea how I could write directly on O0. Thanks a bunch guys. PS: I'm borderline noob. 
  21. hy everyone.. I want to communication inverter SJ700 to hmi mitsubishi GS2017 for read an code error in interface HMI? is it possible to communication between them?
  22. MAOC Instruction Help

    I'm using a 1732e-ob8m8sr scheduled output block and the MAOC instruction to create a punching task. I'm already somewhat familiar with the instruction but I'm not sure if you're able to have two different MAOC instruction scheduling to the same armorblock. The first five outputs I want to make an output cam using position and duration as the condition for a punching task, but the last three outputs are cutter blades that need to be enabled at specific start and end position. I would also like to be able to phase shift (compensate) these features separately. Can I use two MAOC instructions as long as they don't try to overwrite the same output?
  23. Good day, I would like to extract the FT View SE Alarm Log. We currently have got a Excel spreadsheet set up with a connection to the FTAE SQL Database.  When I refresh the data, Excel give an error telling me that the data is more than what can be displayed in a spreadsheet. So it then discards the latest data. I have tried setting a database limit in the Factory Talk Administration console to only keep the last 60 days worth of data but it does not seem to take effect. I get data from January 2017 up to 15 October 2018. Is there a way to configure the ODBC connection in excel to only give me the data for the last 30 days or is there someone that can help me to limit the size of the database? I have attached the current connection config.
  24. I am needing some guidance on an application I'm working on. I'm trying to obtain data from a profinet slave device to an Allen Bradley compactlogix PLC. I am using a Prosoft PLX82-EIP-PNC profinet-/ethernet-ip gateway as a median to allow me to access the profinet data. In RSlogix5000, I have created an EIP Class 1 connection for the profinet controller and AB PLC (248 words of input data, 248 words of output data). The same structure is created in the profinet controller (248 words of input data, 248 words of output data). The profinet gateway and PLC are communicating properly. From my profinet slave device, I have a specification that the data is structured within a 23 byte format. Connecting to my profinet gateway, I can see this data. I have attached an image that shows the specification of the profinet data and the data values displayed inside the profinet controller. From the PLC side, I'm needing to be able to see this data and put it in meaningful values. I am using the profinet slave device's internal temperature as an example to work towards. I'm not sure the best way to be able to handle this data and structure it to a meaningful value inside the PLC. (I am using the device's internal temperature as an example to try and get into the PLC).   Thanks,
  25. I am needing some guidance on an application I'm working on. I'm trying to obtain data from a profinet slave device to an Allen Bradley compactlogix PLC. I am using a Prosoft PLX82-EIP-PNC profinet-/ethernet-ip gateway as a median to allow me to access the profinet data. In RSlogix5000, I have created an EIP Class 1 connection for the profinet controller and AB PLC (248 words of input data, 248 words of output data). The same structure is created in the profinet controller (248 words of input data, 248 words of output data). The profinet gateway and PLC are communicating properly. From my profinet slave device, I have a specification that the data is structured within a 23 byte format. Connecting to my profinet gateway, I can see this data. I have attached an image that shows the specification of the profinet data and the data values displayed inside the profinet controller. From the PLC side, I'm needing to be able to see this data and put it in meaningful values. I am using the profinet slave device's internal temperature as an example to work towards. I'm not sure the best way to be able to handle this data and structure it to a meaningful value inside the PLC. (I am using the device's internal temperature as an example to try and get into the PLC).   Thanks,