UTAH EN

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CLEVER Soft s.r.o. Sluneční 127 280 02 Kolín II

Contact person: RNDr. Petr ZALABÁK petr.zalabak@clever.cz Ing. Jiří ŠIRC jiri.sirc@clever.cz Phone: +420 321 751 081 Fax: +420 321 751 088 The UTAH system is used for the collection and safe archiving of the torque tightening technology data from screwdrivers on production lines. It consists of two software parts:

   Collection and control of data during the actual tightening process

    data archiving on non-rewritable medium, preparation for statistical processing

The whole system assumes deployment in a local area network (LAN) environment, although it can be installed on a separate computer and perform data collection and archiving in one place.

The wrench workstation consists of a wrench itself, a PC (minimum PC / AT 386 configuration, 1 MB RAM, 40 MB HDD, VGA monitor, optional AC adapter), a handheld barcode scanner (connected to serial port) and a wrench-PC connection (serial cable). The wrench used must allow the connection of an output peripheral - eg a PC or a printer. A suitable type is the Georges Renault Twin 5200.

The archiving site shall be equipped with a drive for writing to non-rewritable media and appropriate software corresponding to the drive type.

Communication between the two sites is done via the <NetDir> network directory, which must be accessible from both locations. tightenings are immediately saved to the local (<LocDir>) and network (<NetDir>) directories (in OFFLINE mode only to the local directory). Data is stored in text files with fixed column widths, allowing easy post-processing by database and / or statistical applications. The following information is recorded for each tightening performed:

<ID> 	product identification number - scanned by barcode scanner
<MachineID> 	identification number of the wrench
<Pistol> 	Identification number of the tightening gun
<Date> 	 
<Time> 	 
<Moment> 	 
<Angle> 	 
<Tightening result> 	identifier of correct or incorrect tightening
<Correct number> 	Correct number of tightenings per product (it makes sense for further processing)
<WorkerID> 	employee identification number
[<Worker Name>] 	Optional

The first time you run the program after archiving (UTAH_Arc), the daily files in the network directory are deleted, the daily files in the local directory are moved from the <LocDir> directory to the <LocDir> \ ARCHIVE directory.

UTAH.EXE is used for data collection and automatic data checking at the tightening station. The program operates according to the parameters specified in the configuration file, which is specified as a parameter when running the program.

In addition to storing technological data, the program also checks the correct number of tightenings on individual products. If the product moves to the next product and the number of correct tightenings is different from the defined one, the program will visually and acoustically report an error that needs to be acknowledged from the keyboard and the correct next procedure, most often tightening all connections on the product again. Confirmation and correction of technological errors can be protected by entering the access password of authorized persons. All error situations are written to log files of individual workplaces. For noisier operations, the PC can be equipped with a sound module at the driver's station, which can be fitted with a sound generator of adequate intensity.

Data archiving is handled separately from the wrenchers' own workstations, although it can be operated on the same computer. However, by default, it is recommended that you archive to another network station, preferably directly on a computer that is equipped with a drive for writing data to non-rewritable CD-Rs

The actual archiving is done by separate software. It takes place in the following three steps:>

   Create an archive
   Record data to a CD-R
   Reconciliation of the archive

After checking that the archive is written correctly to CD-R, it is necessary to run UTAH_Con to approve the archive. Only after this approval, the daily data files in the network directory are deleted and moved to the local directories of the tighteners. The record of the last executed archive is stored in the <ArchDir> directory.