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JohnR last won the day on February 8 2018

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About JohnR

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  1. JohnR

    RJ45 to wifi

    Ahh, well I have not yet purchased this device, but thought if you remembered how it was setup I could apply the same thought process to the devices I already have....
  2. JohnR

    RJ45 to wifi

    Flex, I work in a meat processing facility, and every night the whole place gets pressure washed from ceiling to floor. Everything that shouldn't get wet does, wired connections that should be disconnected before moving equipment usually get yanked out, or at least thoroughly soaked. The wash crew is just a bunch of animals when it comes to moving stuff. Anything I can do to make my stuff a bit more foolproof only benefits me. So, can you share with me how you configure this devices to work with the vision PLC's, perhap's I'll see what I'm doing wrong. Thanks, JohnR
  3. JohnR

    RJ45 to wifi

    All I'm trying to do is make a couple portable machines wireless so I don't have have wired drops. Of course, our IT guy has got our wired infrastructure divided into different subnets; one subnet for workstations (XXX.XXX.70.XXX) another subnet for printers (XXX.XXX.69.XXX) my PLC network is on subnet (XXX.XXX.68.XXX) the wireless infrastructure on another subnet (XXX.XXX.203.XXX) And through some IT magic my workstation on .70 can talk to my PLC's on .68 and my laptop can connect via wireless from .203 to my PLC's on .68 but when I try to setup a bridge to connect a plc to .203, I can't get it to talk back the other direction (although the IT guy says it should all work).
  4. JohnR

    RJ45 to wifi

    hmmm, well I have tried to make a vision plc wireless a few times, tried several different wireless bridge/ap devices, but never was able to get a connection, if you got it working then I must be going about this all wrong. I'm certainly no IT whiz.
  5. JohnR

    RJ45 to wifi

    I can see this working on a unistream device as it is a linux box, but has anyone gotten this to work with a vision device? JohnR
  6. JohnR

    What NOT to do when you run out of fuses!

    at least the second fuse down is properly insulated.....🤨
  7. JohnR

    shaft resolver

    Hmmm, No expert here, but years ago I had a couple of machines that used resolvers. If I recall they were not like encoders as they did not have a pulse output, but rather they had a two or three phase AC output and the PLC (old Giddings & Lewis) had special resolver modules. My understanding was that the controls compared the phase differences to "resolve" the rotational position of the device. I mainly remember what a pain they were to keep calibrated. I always thought they were pretty "old school" technology. JohnR
  8. And I find that I like to use the Jump to Display with a touchscreen for repetitive use touch buttons, like an EXIT button or Arrow button. For instance, I make an EXIT button assigned to MB40, I can re-use that button on any display, but it only Exits from the current display to whatever display the jump is assigned to it for the particular display it is on. JohnR
  9. Thanks Flex, I guess I really have not paid attention to that option on the Links & Jumps tab, but it makes sense. JohnR
  10. Hey All, I'm in the process of converting a project I originally did in a V570 into a V1210 Along the way I have been revisiting logic I did several years ago and cleaning up some bad habits from the past (multiple lines in a net, conditional sub calls, etc). I ran the Project Optimizer and it came back with this suggestion for a few different "HMI Display Loaded" calls that I have, and says to use "Bit to Display" instead. I looked in the Help section but do not see "Bit to Display" Anyone know what/where/how ? JohnR
  11. my experience with true "gaffers tape" goes back about 30 years or so when I worked in pro audio (concert sound), and the "gaffers" used "gaffers tape" to tape down cables and hang scrim cloths and such on stage for the concert. it was cloth tape that was more tacky that duct tape but it pulled off without leaving adhesive residue. so far as the snap I/O, I've made a little drill template to drill holes in the four corners and screw it down to the nice little screw bosses that the creators started putting on the V280, V560 ,V570's a few years back (why they have not followed through with holes in the snap I/O beats me, as they redesigned the PCB to have clearance in these corners). JohnR
  12. Yep Flex, that's the way I'm looking at it, in my 30+ years of industrial control I've not run across that term either, and like you say "doesn't mean it doesn't exist"..... Somehow I get the feeling the guy I'm talking to is more "sales" than "engineer"....... I'll figure it out when I get the device in my dirty little hands, just thought perhaps I was being challenged with some new technology
  13. Hey All, The boss has made arrangements for a "try before we buy" test of a Mass Flow Meter to monitor liquid nitrogen usage on one of our cryogenic freezers (if the test goes well, there is a possibility that we install these on eight freezers at which point I'll build something to accommodate). At this point though, I plan on doing some quick and dirty logic in the existing V570 I have on this freezer. The "sales engineer" sent me a blurb sheet that tells me this device can output an analog 4-20 signal, or a pulsed output via HART or MODBUS RTU (note the attached screenshot of the blurb sheet "output signals"). I figured for this test (since the flow meter will be 10 feet from my V570) that I would just take his 4-20 into an unused analog input and scale (linearize) it into whatever they want it to be. A couple weeks went by and the "sales engineer" called me to verify something else for him, so while I had him on the phone I questioned him as to whether they had a starting point for the scale factor (based on pipe size or something) or would we just have to do some trial and error to get it close. He responded that the signal would be "direct reading" (and as he is saying this my head is saying "no, I'm feeding this into a 14 bit analog input and 4-20 is going to give me a range of 3277-16384"), and then he said something about it was "pulsed analog", so I just agreed with him at that point to regroup my thoughts. Now, I have heard the term "pulsed analog" before, but I was thinking that it had something to do with digital audio (pulsed digital simulation of analog audio signals). I can see the pulsed output via HART or MODBUS, but pulsed analog clearly has me stumped. Can anyone out there clarify this for me? Am I missing something obvious? Regards, JohnR
  14. JohnR

    What is Industrial Internet of Things?

    If you build it, they will come The first "wireless phones" (radio telephones) were developed in the early 20th century, which evolved into cell phones by the late 20th century. My brand new cell phone would ring, I'd press a button and say Hello? It was a brave new world, and you felt pretty special to actually have one of these devices.... By the turn of the century we started using "smart phones", not only could I talk to someone, but I could send my friends text messages when I didn't feel like talking, even take pictures, how cool..... 20 some years later these smart phones have evolved into do everything mini computers/cameras/you-name-it, and we can't live without them... (I accidentally left mine at home one day, and I actually felt lost at work without it). Now we are living in a cloud world where everything has to be able to talk through the internet, whether it really needs to or not. What worked well 20 years ago in industrial control, still works well... and while controls have been refined over the years, life without IIoT is still possible, but then we would all feel left out on the new technology..... So they are building it... Here we come...... My 2 cents..... JohnR
  15. JohnR


    Or 120V for us folks here in the US