A text-based game that will work in Windows with screen readers.
Track the presence or absence of a part at each location Work even with imperfect part sensing Track the work done to each part Works regardless of mode even in manual mode Optionally track other metadata such as lot or serial Be resilient to abnormal operation such as faults or loss of power Allow the operator to recover from an abnormal operation, such as by removing a part from the system Using a Structure to Track a Part in TwinCAT 3 A good way to implement part tracking in TwinCAT 3 is to use a Structure.
Imagine a welding machine where the operator places a part into the machine, it welds the part, and then the part is automatically ejected either into the good part bin, or into a reject chute. A reasonable Part structure might look like this: Part tracking data needs to survive the reboot of the controller PC, so we need to declare this as a persistent variable.
Tracking Part Presence We presumably have a sensor or some other method to detect part presence. Perhaps an operator has to place a part in the fixture, we detect the part with a sensor, and then they have to push a button to initiate the cycle.
When this happens we need to set the Present bit and generate a new serial. To generate a new serialwe need a persistent LastSerialNumber variable: The reason this is only on for one scan is because in the second rung, we use a Set coil to set the WelderPart. Present bit, of which we have a normally closed contact in the first rung.
The third and fourth rungs are responsible for incrementing the serial and assigning it to the part tracking variable. The part is still considered present, and the serial is fixed. Tracking Weld Status The weld status is tracked presumably by feedback from the welder.
number = number / 10 Notice that number is still , even though we have already used that 4 on the end. To remove the last digit from number we simply divide it by Jul 22, · Earlier this year, the realms of law and new media collided when Lori Drew was hit with federal charges for creating a fake MySpace page and harassing a . Search the world's information, including webpages, images, videos and more. Google has many special features to help you find exactly what you're looking for.
Notice also that the first three conditions on the first rung could be moved over to the program that fires the welder, and it could be used to create a coil called OkToWeld. You could then use OkToWeld here in place of those three contacts.
This logic will prevent the welder from welding the same part twice, which is very important. This is useful both for testing and to prevent mis-tracking the part.
Tracking Part Removal There are three ways this part can leave the welder: It can be ejected into the good part bin It can be ejected into the bad part chute An operator can remove it I like to create a separate pulse for each event so that I can use that pulse bit for other tasks like part counters and logging events.
Ejecting the part with the toggle in the good position sends it to the good part chute, and ejecting the part with the toggle in the bad position sends it to the bad part chute.
When removing the part from the part tracking memory, it needs to clear the entire structure. Declare a constant of type Part and use a MOVE instruction to copy the empty structure over to of the part tracking variable: Somewhere else in your logic, you need to make sure that the ejector only extends if the chute position matches the part status, so the part tracking should have the Welded and WeldOK bits set in order to eject in the good position.
You have some options. One way to handle it is to just accept that the part was removed. I prefer creating a cycle stop fault, and then having the operator press a button to manually remove the part tracking data: This is a nice handshake with the operator.VbScript has a string function to reverse the string.
But, Interviewers think different, they want you to write a program without StrReverse function. Microsoft Access comprehensive list all Error Numbers and Descriptions. The AP is really a piece of junk but they did design it so that a straight through cable won’t harm it.
If you can’t get chirp (or the config app) to talk to it you might need to upgrade the firmware. downloaded the exe only..
one problem is the exe i have from trendy.. is "iiNet ashio-midori.com" whereas the new version is "ashio-midori.com" sure a quick name change will fix that but for some people.. i.e. parents maybe (my dad uses this app).. it might not be as easy. Search the world's information, including webpages, images, videos and more.
Google has many special features to help you find exactly what you're looking for. The above program is wrong therefore output is zero,. r_m = remainder, d_v = dividend and rev = reverse, 10 is always the divisor here – Avinandan Bose Apr 9 at You should probably add the text and description to the code within the answer, instead of comments for clarity.