Shiner

equipment is a KTP600 Basic PN Software is TIA Portal (Step 7) V11 I am looking through the help menus and other documentation, and still can't find how to animate an object the way I would like. I have achieved movement of the whole object, but I want to rotate a fan. I did this in a similar app in AB, does Siemens support this?? Thanks in advance for any responses.

Am I missing something or is this just not something that anyone has done. In the AB software they have fans motors ect, that you can animate with rotation, I am jsut curious if Siemens has this and how it works. I can get objects to move up down left right ect, and can rotate the whole object on certain objects, but I can't find anything to make these work the way I had envisioned.

You could always post the program here and someone might be able to figure out where the error is if you are uncertian.

You need to figure out why you are getting the math fault. If you can see that one particular math function reaches the max value of 32767 you need to assess why that is occurring. Once you determine why, then you can determine the best way to deal with it, either by changing the math function so that the limit is not reached, or if that is not possible, putting a limit statement in front of the math to prevent it from going over limit. The key is, reaching that limit and triggering the overflow is a flaw in design, whether it is program driven(incorrect math) or hardware driven (eg: an analog input which has a scale that is incorrect). The best remedy is to correct the flaw. Putting ignore (reset) statements does not change the fact that something is triggering a state that is out of range.

There are some things we directly connect to plc outputs eg: indicating lights on enclosure doors, but as a general practice anything with a field or a decent current draw gets an interposing relay. The main reason is maintenance cost. One of these is that when a coil field breaks down during deenergizing it puts a spike on the output, which can lead to failure. Then you are faced with replacing the output card, or if it is an integrated unit, the whole PLC. Much cheaper and easier to replace the relay.

For any rotating equipment, our shop provides scheduled balance testing. The results I have seen from our repair division are that the customers who use this properly avoid the larger catastrophic failures places that do not test get. You have to think of it not as just balance testing because you get a record of the rotating equipments noise levels across the spectrum, and over time you can see if that changes it is a red flag to pull it and repair. It is the noise equivelent of megger testing motors, you wait to see if the readings change over time, and when they do you know you have a problem. Your local tech would probably recommend a schedule for this testing, and not all equipment needs the same frequency of testing. Lower rpm devices will have less wear and not fail as badly when a component goes bad, coupled devices will have less side load on bearings and just make noise instead of being pulled off center when failing, these can give you warning before they are expensive repairs. High rpm stuff can fail pretty quick. A 2 pole motor can go in a day if the bearing heats up from something as simple as too much grease. A pump can get some gook on the impeller and be out of balance and tear itself up, or not be catastrophic but begin to leak just the same. For the valves, counting cycles is a good idea, and most manufacturers will provide a failure rate you can use to determine when you want to pm them.

http://www.foxautomation.com/wingpc/ That will get you most of the D series, but not the 100 if I remember right. You have to get toshiba software for that (they built them for CH)

CLR is the quickest cleanest

How stable is the mounting environment. I had a set on a steel stamping press that needed blanking for a side dump that gave us tons of headaches until we fabbed up a solid mount instead of the flimsy ones that came with them. Once they stopped rattling around during a hit, the problem went away.

Use just the less than statement only put your variables opposite. You really only need one function anyways, one will always be on the greater than side, who cares if it reads left to right or not.

we use the "old School" way on our rectangulars, we have tried plasma cutters but the painted boxes always get discolored from heat. Anyone have some suggestions on this?

Something must be wrong with your program. Don't you know, programs have a mind of their own, always changing by themselves to give production a heart attack. Those physical devices out in the real world exposed to the dangers of process, or even more scary, the meddling hands of the incompetent, can never be the problem. Had that same call today, got onsite, they asked "Where is your laptop?" I said, didn't this work when I left weeks ago? answer yes. Well then maybe a broken prox is the answer and you just paid me two hours minimum to find it!!! Thanks.

I have read over posts on PID and without practice the deciphering all that information is getting to me. I have a process where I am trying to do two things. First, on initial start up, I want to monitor the output of a device using a sensor. The input of this is very unsteady so I need to do smoothing. I need some advice on how to set this up. The output will increase with temperature until max output is reached. At this point any increase in temperature will begin to decrease the output. I want to record this peak and use it as my setpoint. I would like to do this "on the fly" because the output will also diminish with the age of the equipment (at some point necessitating change which will again change the peak point). So each time the machine is started the max is recorded, and used as my target run temperature with a second sensor for temperature. Second, based on the setpoint, I want to ramp up or down cooling fans to hold the output devices at their optimum temperature that we determined above. The processor is a 1769-L23E-QBFC1. I have 4-20mA going to the drives, 4-20 in from the temp sensor, and 0-10 in from my emitter sensor.

Try candy corns....noone is allergic to sugar. What about eliminating the screen label for tanks ect.....once an operator pushes a button for fill with material 2, have a popup "which tank do you want this material to go to" and have them manually enter a number from a popup keypad. Then there will be no button confusion or I didn't see what screen I was on garbage. It will be, you manually entered the wrong number?!?! I guess this does not help for those operators who didn't like Count from sesame street.....one tank ah ah ah.

If you can calculate the percentage above setpoint, then you can use that number to open the valve. The larger the overage, the more the valve will open, and conversley as the tank drains and approaches the setpoint again the valve will begin to close. This should keep the surging of the tank down. It is still a PID it is just that the output is controlled by a derivative instead of the raw data.

It almost seems you need a ramp down function. If tank 1 rises 10% above desired height, it opens the valve and drains. From what you say it sounds like it then closes the valve after passing the desired height so then you are below level. You need some way of determining that the level is approaching your setpoint, and slows the release of material. The valves, are they two position or variable position?

If the system operates in the way I questioned above, it sounds like you may have to do some math. Tank 1 recieves an increase of X. Volume of increase = % deviation * tank volume. To level all tanks Deviation volume/5 tanks. I the problem with this is that it only corrects an occurence, not a continuous addition. More information on your process would be helpful.

If you want to have smoother level changes to the tanks down the line, have you tried using an averaging function instead of PID the raw value of tank 1. If the fluctuations are short in duration this could keep the tanks from rippling the tank 1 rush. Still use the raw data for alarms and it is a good idea to put in an override if the level were to get too high. An averaging function should have an input that allows the raw data to be passed through in certian circumstance. AB does it when you have the Initialize bit enabled and the input is at 1. The input data is put directly to the output until the bit is clear. The HC900 should have this in there too, the engineers come from the same school of thought. So does the processor and rack, looking at it you would think it was a slick 500 with someone elses name on it.

Try OSEA. They have pretty good training and personnel. All of the construction trades in my area use them for LO/TO and many other safety oriented training. If they are not available sometimes a local safety equipment supplier may have someone who can train, or the local electrical union hall may have a certified trainer as well.

Earth ground is a ground derived from an individual source, (rod, ring, ect) a pole ground is derived from the ground of the transmission system and can be noisy from line transients, frame ground is a common using the steel of an enclosure or system used to tie all signal grounds together and usually having a separate ground tied to the earth ground (this way transients on the system become common and will not be as noticeable on the signal) but can also be floating, and line ground is referred to here as a high leg or corner grounded delta system and depending on the strength of the resistance to ground, potentially dangerous. There are only a few places in my area that have this last type of system still in use. I have seen frame grounds in controls, where niether side of the load of the control transformer is grounded, and the system has two ground detection lights. The idea is if a wire shorts, one of the lights will light letting you know that you have a fault. Without this if you were to have a fault on the Nuetral (grounded) side of the control, current would pass through the frame of the machine or enclosure undetected(until someone provides a better path to ground). This too is becoming less common as breakers with ground fault detection come into use more and more. What is it you are trying to determine?

We use Sola unless otherwise spec'd by the customer. Never have any problems with reliability or lead time issues or anything with them so far.

Try this: http://www.emersonindustrial.com/en-US/documentcenter/EGSElectricalGroup/products_documents/control_power_solutions/power_supplies/sl_single_multi_output_linears/SL-Single-Multi-Output-Linears.pdf You should be able to bridge the +12 and -12 for your 24v and center tap one side to get your 12v. Same theory as the 120/240 you have at home.....

Ah, so simple. See what I get for not memorizing the manual....or reading all of it for that manner. Thanks for the replies.

Is there an easier way to rename a project once it is created than importing into a new file with the new name? I have a situation where a project was created and finished with one name, and the customer wants a name change. I have been trying to do this unsuccessfully bu renaming the file and folder, this resulted in it not seeing the file, so I changed it back and it works again, but I still have the name problem.

Stainless steel is actually relatively soft. It does however, self temper, meaning that if you apply heat it will harden quickly. If using any type of drill bit, you need to use a very slow speed, I cannot emphasize that enough. Some sort of cooling oil is a very good idea as well. One slip on the drill trigger will be enough to harden the steel and then your bit is scrap. We do alot of stainless for food and corrosive environments and with practice our guys are now able to get the nice curley-Q off the flutes of the bit when drilling through. Note: If you use too large a pilot bit at slow speeds on your final hole you risk breaking through the other side without making a hole and the bit will thread into your work. This is not a happy situation.