JDHammond1

MrPLC Member
  • Content count

    14
  • Joined

  • Last visited

Community Reputation

0 Neutral

About JDHammond1

  • Rank
    Sparky

Profile Information

  • Country United States
  1. SMC pressure sensor

    Can you post a pic of the program? What are you using for a scaling function?
  2. Hiperface to Standard Encoder on Kinetix 6500

    Encoder.docx
  3. I am looking to replace a SIC Hiperface encoder with a standard 1024 encoder. I see how to change the protocol here but am wondering what else I would have to change. Thanks for your help!
  4. Need some help! Programming issue!

    Thank you for your help. I was able to go off what you had to make it work! Thanks again!!!
  5. Need some help! Programming issue!

    They both do the same thing except when the operator wants to clean or calibrate the probe he can push the maintained button and it goes through all the steps except the last (go in), until they are done with the probe, then release the maintained button and the probe goes back in.
  6. Need some help! Programming issue!

    This is what operations wants I thought it would be best if I tried to document what we decided yesterday. 1) Under normal circumstances, the D3 will initiate the automatic flush sequence. It will do this based on a time interval entered by the technician. (Presumably about 15 minutes). It will flush both the A probe and the B probe, but never at the same time. It will only initiate automatic flushes while the Fermenter is in either the ‘inoculating’ or ‘Fermenting’ state. The technician will be able put the flushes into either ‘Auto’ or ‘Manual’. When in ‘Manual’, he can start a flush by pushing a button. When in ‘Auto’, the D3 will initiate flushes based on time. If a probe is manually flushed and then put back into ‘Auto’, the time resets and it is 15 minutes before the D3 automatically initiates another flush. 2) When the D3 is ready to initiate a flush (either Manual or Automatic), it will first store the current value of the pH probe reading and put the probe in hold for a set period of time (Presumably about 60 seconds). Once the reading is fixed, it will then send a pulse signal to the PLC to initiate the flush. (We have two cables going to the PLC, a pulse on the first cable flushes the A probe, a pulse on the 2nd cable flushes the B probe. 3) When the PLC receives a pulse signal to flush, it will send a 24V signal to the air solenoid valve (on the appropriate probe) to switch positions. This will switch the air supply on the flushable housing and cause the probe to retract. After about 5 seconds, the PLC will send a second signal to the Broth Condensate solenoid valve (again, on the appropriate probe) to open, which will start supplying broth condensate to the tip of the probe. After about 30 seconds, the PLC will reverse the signal to the Broth Condensate solenoid valve, thus causing it to close. 5 seconds after this, it will reverse the signal to the Air Solenoid valve, switching the air supply on the flushable housing back to its original configuration and causing the probe to reinsert. The flush is now complete! 4) For maintenance purposes, each probe will be provided with a local disconnect switch (a toggle of some sort). When this disconnect is pushed, the PLC will send a signal to the air solenoid valve (on the appropriate probe) to switch positions. This will switch the air supply on the flushable housing and cause the probe to retract. After about 3 seconds, the PLC will send a second signal to the Broth Condensate solenoid valve (again, on the appropriate probe) to open, which will start supplying broth condensate to the tip of the probe. After about 30 seconds, the PLC will reverse the signal to the Broth Condensate solenoid valve, thus causing it to close. Note that these steps are identical to those of a normal flush. However, at this point, the PLC goes into hold, AND DOES NOT SIGNAL FOR THE PROBE TO BE REINSERTED. The air lines to/from the retractable housing will all be fitted with block valves, as will the Broth Condensate lines to each housing. If the probes require a calibration (or any sort of maintenance), these block valves should be closed after the probe is retracted and flushed. Once the calibration or maintenance is complete, the block valves are opened up and the toggle switch is reversed – this will cause the probe to reinsert. (Note that we’re leaving it up to the Technicians to insure that the other probe is on control before they do a calibration or maintenance on a probe. This is the same risk that we have today.) Sorry for the length of this message, but I was trying to be complete. Please let me know if I missed anything.
  7. Need some help! Programming issue!

    It will be the top portion of the program. The bottom will be the same in the end. FERM PROBE FLUSH.RSS
  8. I have been out of the game of PLC's for going on four years and I have a project im working on. I got 99% of the programming done but im having one issue. I'm doing a probe cleaning sequence with a timer. One way is from our DCS and another is from the operator. I have everything the way I need it when the DCS calls for it. All it is, is a probe going out (air solenoid on) latch bit, probe clean (water solenoid on) latch bit, 30 seconds later, (water solenoid off) unlatch bit and (air soenoid off)unlatch bit. That works fine. My problem is when the operator pushes a maintained button for the manual cleaning it does all the steps except the last. It isnt untill the maintained button is pulled out that the air solenoid turns off. Right now I have the maintained input NC, after the accumulator and it holds it out for the last step, but as I turn the input off, I loose my timer and then the unlatch does work due to them in series. I know this is easy but, i cant seem to figure it out. Please help Thanks,
  9. Datapanel 85 Issue

    I spoke with GE and they even think its too old. I might have to go with a diffrent PLC and HMI. Thanks for your help.
  10. Datapanel 85 Issue

    5.2 Im guessing thats what it was programmed with. I did the transfer and it completed. When I open the project its like a new project. Am I missing a step?
  11. Datapanel 85 Issue

    Is that the GE videos on youtube? I watched them and im doing the same thing. When I go to open .dtb file I'm getting a source database version too old message. I can't get any tag names, or anything thing on Datadesigner to see the program?
  12. Datapanel 85 Issue

    I see a box you posted but I click it and nothing comes up?
  13. Datapanel 85 Issue

    I have a Datapanel 85 connected to a Versamax Micro PLC. I need to change the program but I have no comments so I need to get the program off of the datapanel so I can create comments in the PLC. I uploaded from the datapanel to the PC and saved it, but when I open a project or the DTB file I get nothing under the project. Its like is opening a new project. When I open the DTB file it says unable to import file, Source database too old. I am new to the datapanel so any help would be greatly appreciated!!!