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  1. Hello,  I have two pressure transmitters connected to a tank. One at the top and one at the bottom. How can I calculate the level of the tank ? I know the height and Specific gravity of the materials.    Thank You  Pratik Jain

  2. GX Works 3 glitch?

    Crocket posted a topic in Mitsubishi

    Hi all, I have a program I am editing in ladder mode It is getting quite large, nearly 30k steps now At some point after a continuous paste (I think) the editing has become glitchy If you try and change an item it inserts the new one and keeps the old one It puts in horizontal and vertical lines seemingly randomly which you have to play around to delete before conversion It is only this one program I tried editing on 2 pc's, no different I cant find anything in mitsubishi manual  Has anyone else had same issue? Thanks in advance  
  3. Hi there! I've been looking for some fault codes table for the 1734-AENTR adapters, since I'd like to show a message in HMI with some information when there is a faulty adapter, but I haven't found anything on the internet. So my question is, is there any type of table like this for these adapters? Right now I have a PLC with some AENTR adapters in the program for testing, and since there is actually no adapter connected to it, I can see a 16#2024 error in the module properties, but can't seem to find that info in the module variables.   Do you guys have any clue on how to find this information in order to show it?   Thanks in advance!

  4. Memory Data in FX3S

    Yuto24 posted a topic in Mitsubishi

    Greetings Can someone tell me about a memory that saves the data even when the machine is turn off? I need one for a speed pulse for a driver and all the memorys that I used where not saving the data. The PLC is an FX3S-MT32
  5. I need to Migrate 10 micro logics 1100/1400s. They are all in the same room but in different cabinets. Changing any wiring would be expensive and not an option. They all have small projects and have between 0 and 30 I/O each. The processes are critical and can not shut down or be unreliable in any way. Option one: Micro 800s and CCW.   I realize this is the straight forward answer but my customer hates CCW and may refuse this. Option two: Install one nice modern controller to replace all of them and use remote I/O. This is my first instinct but I am worried about these critical processes now depending on Ethernet networking to function, I doubt the customer wants to pay for network upgrades. Option three: Multiple compact logics i.e. L306s To me this is nice, but overkill and expensive.   Any better option?   Open to opinions     
  6. Hey everyone, I'm new to programming PLCs and I've run into a problem. I have a Micrologix 1400 Series B PLC, and for the past month, I've been using a free trial of RSLogix 500 Starter. But now, the trial ran out, and so I bought a license for "RSLogix Micro Starter". The problem is that when I downloaded my updated file to the PLC for the first time with micro starter, the PLC's outputs don't work anymore. I checked the PLC screen and the inputs from the HMI screen are getting recognized, but the inputs from the physical sensors are not. Also, none of the outputs are being activated on the PLC at all, which I can tell by looking at the I/O status on the PLC screen itself. I then uploaded a new test program, where you press a button and a light turns on, but that doesn't work either. I haven't changed any of the physical wiring, only thing I've changed is that I'm using RSLogix Micro Starter as opposed to RSLogix 500 Starter. I spoke to a Rockwell technician about this and he said that there shouldn't be any problem, as I haven't done anything wrong. So I now ask everyone on this forum if they could help me out a bit.
  7. I have an Allen Bradley 5069-L306ER CompactLogix 5380 Controller that I cannot connect to. I tried pinging the controller and I did not get a single reply. I went on RSLinx Classic and I can find it there. My coworks have no issues connecting to it. They use the same cables and adapters that I use.  What am I doing wrong. I can go to different PLCs in our plants and I have no issues connecting to them.
  8. Hello! First time poster!I am trying to access a PDF file on the removeable SD on the back of the panelview (Storage Card2) and get an error using ActiveX Controls;"There was an error opening this document. Sharing Violation!"The HMI is a  2711P-RDT15C I have called Rockwell support, as well as used various articles from the RA DB and still nothing. Things I have tried: - Reading from various storage cards and USB devices - Reading from my documents - Various syntaxes:       "\Storage Card2\M1.pdf"       "Storage Card2\M1.pdf"       "Storage Card2/M1.pdf"       Many others as well w changes in slashes, spaces, etc - Power cycling between failed reads FoxItReader CAN open. The file CAN also be selected and opened by browsing the OS on the PV - both on the storage card and when moved into my documents. The current parameters for the ActiveX program launcher are: Program location: "foxitreader.exe" Program Parameters: "Storage Card2\M1.pdf" If anybody has any insight into this issue it would be greatly appreciated.

  9. Emerson 90-30

    Jtech posted a topic in GE

    I'm working with Emerson 90-30 on proficy machine edition and I'm trying to use a string variable to display words on a graphical panel in target 2 but withing the code itself on target one I cant seem to understand how the reference address works? can some one explain how string variables function and how to use them?
  10. Hi everyone! I am attempting to read EIP tags from an Allen-Bradley ControlLogix from an Omron NX1P2 using the Sysmac Studio function block "CIPUCMMRead." I have been successful in reading arrays and single variables no problem. However, when I want to read arrays from a structure in the Allen-Bradley PLC, I always get an error code in the CIPUCMMRead ErrorID of either 0400 or 1C00 for ErrorID and ErrorIDEx is FF00 2105 depending on what I enter in for Size on the function block (attaching screenshots with both error codes).   The errors show on multiple "read" function blocks at once but it only affects data coming out of the function block where I try to read in a BOOL array from a structure in the ControlLogix PLC. If I enter a UINT#1 for the Size, I get ErrorID 0400. If I enter UINT#2, 3, or 4, I get ErrorID 1C00 with ErrorIDEx being FF00 2105. I've been digging for a while and can't find that specific combo of codes, but it looks like it's a size issue. From what I can tell, the Size is in Bytes. So if I have 32 Bools it should be a Size of UINT#4 max, right? Any help would be greatly appreciated! The function block having issues is setup the exact same as the other two that read from the same structure; I even copied and pasted them from each other and just changed the FB name and the postfix in the SrcDat string (from MyBools to MyDints/MyReals). Here are the screenshot: 1. Allen-Bradley Structure 2. CIPUCMMRead Function Block with size 4 3. CIPUCMMRead Function Block with size 1

  11. Problem failed to start ladder engine

    puput Dani Prasetyo Adi posted a topic in CX-Programmer

    Hello my brother and sister at this forum, please help me, my problem is after i make ladder diagram and iam click button simulation -> Work online simulator ( CTRL + SHIFT + W ) then appear warning  "failed to start ladder engine", what a problem?? thanks before
  12. Hi there! I have an Allen-Bradley SCL05/04 PLC. It has an RS-232 port, a 3 DH+ connector and a circular port with programming pins. An NB-Omron HMI is connected to the RS-232 port. And of course I can only have the screen connected. Is there any possibility to connect through the PLC programming port to be able to follow the program online?   Here is atached photos of the PLC: https://imgur.com/a/PEPI4Wl      
  13.   Replacing dead powerflex 700 with 753 talking via ethernet. Any good instructions on how to update the file from 700 to 753 on rslogix 5000?                                    
  14. As the industry of plc and scada softwares continue to integrate more and more programming languages into their IDE, what is the most common language that should be learned by controls engineers (excluding Ladder Logic)?  I mainly use Python and VB for scripting but I am curious what languages other SCADA and PLC programming environments use. Should I be sticking to a specific language and learning it well or just know a little bit of them all? Let me know your thoughts!!
  15. Hi, Does anybody know if its possible to access the "Inhibit Module" tick box within the Hardware Device Connection tab from the PLC code? I'm hoping to turn this on / off depending on whether certain modules of machine are physically installed.  e.g. A Kinetix Drive / Point IO etc. Thanks
  16. Hi   New here.  Trying to create a cumulative timer with zelio soft 2 for a SR2B201BD So, whenever the plc receives a pulse (coming from a coin acceptor) it adds x amount of time, whenever receives a second pulse, adds x amount of time to the time left on the timer. This is a timer for a self serve car wash. Used to work with Ecostruxture Machine and a TM221, but do to a stock break on the supplier and time sensitive project was forced to change to a sr2.  Can't seem to make the transformation from my program on ecostruxtur to the zelio. Any help? Thank you
  17. I'm trying to exchange some data between two controllers. I've used a manual which describes Tag Datalink communication. Everything works fine on the Bradley side, which means I can read values from Omron without problems. However, on the CJ it isn't working. In the Network Configurator I get error every 10 sec (Tag data ling error, code 03D5) and cannot read any data from AB. When I open Connection Structure Tree I see that the input tagset from AB has 'Broken path (0000000000000)' and Unknown Device right next to IP address. I've tried using EDS from the Rockwell as well as uploading it from AB PLC directly - I don't know if it might be EDS issue. The only thing I noticed that inside CJ2M-EIP21 EDS it says that Ethernet/IP is Class 1 connection, however in the 1769-L35E EDS Ethernet/IP is Class 2 connection. Have anyone ever had such a problem?
  18. I am trying to use Reusable files, but it is greyed out. Is there a setting that needs to be enabled to activate it? I am using CX-Programmer v 9.74 Update 1: Apparently, when you create a data structure this gets greyed out  
  19. Array A INT[32] Array Index B INT Destination C INT I am trying to move an Array (A) Element (A[2]) using a symbol (B) in ladder into a destination symbol (C) C = A [ B ] Result: ERROR: Array Index of Operand 1 out of range at rung 1 ( 6, 0 ).  The documentation suggests that it is possible, but I am unsure if there is something I am doing incorrectly. Note* Fixed indexing works with no errors Is there another method to accomplish this?   PLC : CJ2M CPU31 CX- Programmer: Verion 9.74 Update 1: If I go online to the PLC It does look like the array look up is working. Is the issue with the mov block? Update 2: I changed the memory locations which has caused a different error to appear. This error is clearer but does not explain the manual excerpt I posted further up ERROR: Only the constant can be specified for the index of the array.  at rung 5 ( 6, 0 ).  Update 3: Solution 1 I managed to hack together a proof of concept using pointers and indirect offsets  Update 4: Solution 2 For some strange reason things work as expected inside of the function blocks so I made one where the array is In-Out and with an input and output respectively. Note* External reference to pointers inside of the function block produced an error. Function block Logic     Update 5: Solution 3 Now I feel like I am going crazy, I tried just the original code again and it works... I have no idea why and if it was not for all the documentation I would be lost as to why it works now... Update 6: Conclusion It seems to have array indexing work the array index must exist in the D Memory Block. The reason it did not work above is because I somehow had a MOVR block when I tested after moving all the variables to the D Memory Block. I hope this journey helps someone else :)
  20. Been seeing a high failure rate on these PLC's on 2 of our processes. The control power is feed through a APC UPS to a 24VDC power supply to power the unit. Getting a hard fault where the OK LED comes on red and stays red. It never sequences through all the LED on power up. Tried the hard boot by holding in the reset button and applying power. Has anyone on else seen a high failure rate on this model PLC? TIA..
  21. Hello, I am experiance a problem with a consumer tag staying stuck on. Producer and Consumer PLC are turned on. Information is getting transfered like it should. The Producer PLC gets powered off and the tag that is getting transfered over is ON before it gets powered down. When I check the tag in the Consumer PLC the consumer tag is still ON. Shouldnt the consumer tag go to the OFF state once the commincation has been lost?
  22. Hi Everyone, I have a small project where I need to detect temperature and smoke using Allen Bradley Micro820 PLC and send email when the temp is above or below a set limit. And since I'm new to PLC world I'm not quite sure which sensors would work with my plc model. It would be really helpful if anyone could guide me through and suggest any sensors appropriate for temperature (surrounding temp not liquid temp) and smoke. 
  23. Please let us know if anyone needs any of their Allen Bradley plc equipment repaired. We do component level repairs to restore your defective units back to full functionality. You can reach us at CustomerService@OttoAutomation.com or visit us at www.OttoAutomation.com to get a free quote. If you have a part you need repaired that you can not find, please contact us.  All repairs come with a full 1-Year warranty and also include a complete refurbishment and testing to extend your units life cycle. Any member of this site will also get a twenty percent discount.  Thank you, Otto Automation
  24. Hello, I'm new to setting up my controllers and communication between devices.  We wanted to see if using Modbus TCP/IP to communicate to a load bank was the right path for us.  I was able to configure my Micrologix 1400 controller Channel 1 for Modbus and set the data files.  I set up a read holding register 03 message, two write single register 06 messages and one write multiple registers 16.  I was able to read the data from the load bank, but I was unable to send any write commands.  I didn't get any errors in the messages.  I was able to send write commands through my pc to the load bank and it responded properly.  So I was thinking I must of missed something in my set up in the PLC. I'm attaching the PLC Program and the command set from the manufacturer.  Any help would be greatly appreciated. BENCH_TEST.RSS ALx Series Input Command.pdf ALx Series PWR Command Page.pdf ALx Series Setpoint Command.pdf
  25. Newbie in the field of Automation here! I have a waste water project that requires operating 6 pumps to empty a sump. The water level in the sump is being monitored by an analog ultrasonic sensor. The analog range is divided into 5 levels; level 1 being the lowest and level 5 being the highest. The way the pumps operate is analogous to the water level, i.e., 5 pumps will run at level 5, 4 pumps will run at level 4, 3 at level 3, 2 at level 2, and only 1 pump will run at level 1. The sixth pump is used to run the pumps sequentially and that's where I need help. Basically, the pumps can not be assigned to a certain water level as this would result in the pumps at the lower level run way more as compared to the pumps assigned to higher levels. The pumps need to alternate so as to keep the running hours of each comparable. Another requirement is that say if pump 1 turns on due to water level rise and then turns off due to water level fall, and again if the water level rises, then the next pump should start instead of pump 1, and so on for the rest of the pumps. Also, if one pump goes on some kind of fault, the 6th pump comes in and runs in its stead until the fault is reset. I'm trying to come up with a ladder program to make all this happen but hoped that I could find some help online. I feel like this is a common project and there should be someone that can give me the proper solution. With thanks, Aafaq.