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Joe Tauser

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Joe Tauser last won the day on October 16

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About Joe Tauser

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  1. @AlexUT - When was this added? @Cara Bereck Levy Also - let somebody know that the link to the Visilogic version changes loads the Bug Report document, not the Version Changes. Joe T.
  2. @Cara Bereck Levy Yes. Plus - 1. Ask one of the technoboys what happens if a negative signal is applied, Have them actually hood one up if they have one. If this is indeed single ended and non-isolated then it should return a zero for a negative input. Get back to us with what happens. Or, better yet, @kpetro07 already has one in place and maybe he can hook one up backwards and let us know the results. 2. Nobody cares. Delete it. 3. Depends on the test results from (1). If the output of the module does return a negative number with a negative signal, then this is relevant. If the module returns a 0 with a negative signal, then delete this as it implies that the module can read a negative. Joe T.
  3. The question is do you need reliable 24V power or uninterruptible 24V power? If you lose AC power to the system, can the PLC go down? Reliable power is parallel power supplies as kratmel suggests. Many power supply vendors have a model that allows connecting two together in parallel with a feedback wire between them so they don't have an amps wrestling match if the output voltages differ. I had an application a while back which required battery backup, which is uninterruptible power. If I lost AC power the PLC needed to have a few minutes of DC power available to park some air cylinders that positioned a powered roller. Look at something like this- https://www.powerstream.com/24v-150w-backup.htm The power supply keeps the battery charged and switches over in "zero time" when power is lost. Joe T.
  4. I Googled that error and it pops up all over as a database connection error coming from VB, which is what DataXport is written in. It's probably intermittently having an error connecting to it's own internal database, which is almost Access but not quite. Maybe one of the Creators can chime in. Joe T.
  5. You may be new, but I spent half an hour last night trying to figure out why my new Brick (what I and others call the PLC product) kept telling me it wanted an SD card on the VNC client when I just put a new one in. Then I tried reading it with an adapter on my computer and it made the Windows "ching - happy bell" noise but wouldn't read. Then I tried re-inserting it in the adapter. Four times. Then I got another new micro SD card and put it in. The problem went away. The moral of the story is you are not the first to get bit by defective removable media. Nor will you be the last. It's something we all need to keep in mind. Joe T.
  6. OMG. This is near and dear to my heart. Behold, the latest iteration of the JTA ILD Tester- "ILD" stands for Initial Loft Deflection Test and was developed by a customer / manufacturer of nonwoven material (think white fluffy stuff in cushions) and is based on the ASTM IFD test used for foam. I incorporated a 25/65 test into the program if they want to test foam, too. This was developed to be a production tester to test samples several times a day. It's not as accurate as an H-frame tester, but super rugged and a hell of a lot cheaper. Accurate to 0.1 pound and 1/8 of and inch. The first iteration used a V120 back in the day. It's come a long way. Joe T.
  7. If you're going to go shopping on the Evil Empire's website, this would be so much easier- https://www.automationdirect.com/adc/shopping/catalog/relays_-z-_timers/electro-mechanical_relays/slim_interface_relays/kpr-sce-24vacdc-1 Joe T.
  8. 1850 RPM should give you a frequency of about 31 Hz. If you're getting a frequency of 190 then you're getting more than one pulse per rev. That prox has a frequency response of 900 Hz, so it's very possible that when you're running the prox is triggering a couple of times and you can't see it without a scope. The thing to consider is resolution. The PLC can't do fractional frequency, so you'll have to multiply the frequency by 60 to get RPM. Which means your RPM display will jump by counts of 60. This may or not be OK. If your setup is repeatable and you always get 190 Hz at full speed, then you can take advantage of that and multiply your frequency by 9.73 to get RPM, which will give you about 10 RPM resolution. A better way may be to run the 0-10V pot signal into an analog input and read that instead (assuming the pot is separate device and not built into a drive). Then you have 16384 counts to play with and will be able to display RPM much more precisely. Let us know how your motor is controlled. Joe T.
  9. There can be only one answer. I've said many times that empirical data is the best data. If kpetro put 0 in and the linear block worked properly then the spec sheet is misleading and the scaling is spread over the whole 15 bit range, not starting with the 4 mA offset like we're used to. I configured a remote I/O drop with that module. You can choose what your input will be: I haven't personally used this module, but we can deduce that the module takes the configuration into consideration and returns 0 counts at 4 mA. Allen Bradley does this on their CompactLogix I/O, so it's not out of the ordinary. It would be nice if it were documented better, but I have a feeling that Unitronics is relying on the manufacturer for this. Joe T.
  10. OK. Set your com parameters 9.02 to mode 4 - 9600 8E1. For some reason Even works better than Odd if None is not available. Cut off the end of your com cable on the PLC side and put a new one on- This is in the Visilogic Help if you dig deep enough. PLC VFD 2 2 4 4 3 3 You also don't need to put the "4" at the front of the Modbus address. This is implied as it's a holding register. Confusing, yes. And Unitronics starts counting at 0, so you need to subtract 1 from the register you want, so for frequency you need address 8450. Also confusing. I've hacked the program a bit. Let us know if it works. Joe T. MODBUSTEST_JT.vlp
  11. Take a look at this post- Download a look at the program I attached called Jazz Stage Example. This should help you start to form your sequence - you'll be stepping through a timer-based sequence where you move different setpoints to your PID block. How are you controlling the air pressure? Start your program and then post it here with questions you have. Joe T.
  12. Your "Timer Scale" UDFB had INT8 data types in the Function In definitions. You were calling it with numbers larger than 256. Stay away from this data type unless there's a really good reason to use them. Stick with INT16s and INT32s. Joe T. TestMachine JT.ulpr
  13. What is the size of the USB drive you used to update the firmware? It needs to be at least 8 GB. Joe T.
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