Joe E.

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About Joe E.

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  1. Defaulting Memory Card to fix connection issue

    If the RS232/USB adapter is connected to the VM using the "removable devices" menu, go to Device Manager and double-check which COM port number it was assigned. It may not be the same port number it got last time, especially if it's plugged into a different physical USB port. But, from what you said, it's configured for an ASCII protocol that RSLinx can't use (if your research is right, I haven't confirmed that). Are you still using that scale? If so, you're not going to get very far with setting the COMMS to default. Once you download the program back to the PLC to get online, the port will revert and you'll be dumped offline. Since you're using the COM port for a scale, and DH+ to an HMI, you won't be able to use a 5/05 since the 5/05 doesn't have a DH+ port. Your best bet right now is probably to connect to it via DH+, which won't be cheap. Actually, a better bet is to replace the 5/04 with a 5/05 and the HMI with one that supports Ethernet. That may not be in your budget, though. We've had very bad results from the AB U2DHP modules. They are very expensive and just stop working without having been "abused". For systems where we must use DH+, we have a couple of Prosoft Ethernet to DH+ modules (AN-X2-AB-DHRIO). They're pricey, and need an external power supply, but they've been flawless. We used to have a ControlLogix chassis on our computer cart with a 1756-ENBT module in one slot and a 1756-DHRIO in another. That worked well too but was a little cumbersome and would only be cost effective if you had those components lying around unused. Our standby for aftermarket cables has been these guys: https://www.plccable.com/allen-bradley-1784-u2dhp-alternative-usb-to-data-highway-plus-dh-anc-120e/ We haven't tried their DH+/USB system since we already have the Prosoft system working, but it is cheaper than the AB version, at least for us with our AB pricing. The SLC 5/04 has a round mini-DIN port and the 3-pin phoenix connector on the front. Both are the same DH+ port, so you can get your gateway device connected at the same time as the HMI.  
  2. Defaulting Memory Card to fix connection issue

    Also, are you using a virtual machine? If so, try connecting the USB-Serial adapter directly to the VM instead of the host. We've had trouble with the physical COM port of the host not translating predictably to the VM.
  3. Micrologix 1200R Communication port & cable

    You can also get a "standard" programming cable for the MicroLogix with their custom mini-DIN type connector on one end an a 9-pin d-shell connector on the other. I think that's the 1761-CBL-PM02 cable. Then, get a programming port with the 9-pin d-shell connector. You can then use just a standard serial cable to connect to your PC. Edited to add: The AB cable tends to be expensive, but here's an aftermarket one: https://www.plccable.com/allen-bradley-micrologix-cable-serial-1761-cbl-pm02-90-deg-end/ We've used their cables before with great results.
  4. plc5 conversion

    Can you post your RSP file?
  5. I've also seen issues with doors when the enclosure isn't level. make sure all 4 corners are on a level, flat surface. If it's sitting on a pallet, move it to a flat, level floor and try again.
  6. Controllogix 1756-OF8 Wiring help

    Looking at the wiring diagram in the user manual, the 1756-OF8 doesn't require an external power supply connection. The analog signals are generated within the module using power it gets from the backplane. See page 144 of this manual: https://literature.rockwellautomation.com/idc/groups/literature/documents/um/1756-um009_-en-p.pdf  
  7. this is for the HMI

    HMI manual.pdf

  8. Hi, Joe E,

    please find attached  some part of the documents 

    electrical diagrams.pdf

  9. Have you gotten anything back from the machine builder? You really need the *.apa file for the HMI for this project but you should try to get their copy of the *.RSS file too so you get the documentation for future use.
  10. As mentioned above, someone with time on their hands will need to trace out the code and figure it out a line at a time. I can't do it for you on company time or on the company laptop and I don't have the software to do it on my own.
  11. I hate to say it, but without the source files you have your work cut out for you. Do you have pictures of what the screens were and what they displayed?   The best possible outcome is that whoever built the machine is still around and you can get the source files from them.
  12. The file you uploaded from the PLC is what's running the process, but it's not documented so it's difficult to identify what's going on. Does the HMI power up at all? If so, do you have the software to upload the runtime file from the HMI? You need Factory Talk View Studio for ME. If so, that would be a far better resource for replacing the HMI if it's a new enough software version to be decompiled and the OEM didn't password protect it.
  13. Another option, if you can rearrange the data (or copy it into an array that can be rearranged), is the SRT instruction. You give it an array and it sorts in ascending order so the largest value will end up at the bottom of the array.
  14. Sorry, that looks like a large task, too much to tackle on my own time right now.
  15. Rotation animation in Factory talk view

    If you want a very accurate sample every x amount of time, you can also use a periodic task. For what you're describing, though, it sounds like it doesn't have to be super accurate, so you can just use a self-resetting timer Your HMI would display SampleDest.