The programming and test software 907 PC 33 serves to
create programs for the ABB Procontic T200, ABB Procontic
CS31 and Advant Controller 31 programmable logic
controllers (PLCs). An installation program that functions
largely automatically installs the software package
on the PC.
This specification is valid for 907 PC 331/332. Following
table gives an overview of the different PLC systems and
the pertinent software packages:
PLC system programmable with:
ABB Procontic T200 907 PC 332
ABB Procontic CS31 907 PC 331
Advant Controller 31 907 PC 331
The programming and test software 907 PC 33 is executable
on:
commercially available, IBM–compatible personal
computers with the following technical
features:
â— at least 4 Mbyte RAM for optimum performance
â— Hard disk drive
â— Diskette drive, 3 1/2", 1.44 MB
◠EIA RS–232 serial interface for the PLC system
â— Parallel or second serial interface for printer
◠MS–DOS operating system V5.0 or higher
â— Optionally a mouse for fast cursor control
ABB Procontic ABB Procontic,ABB High Voltage Electric Motor Xiamen The Anaswers Trade Co,.LTD , https://www.answersplc.com
It is reported that these furnaces of GTAT were originally purchased and installed to supply sapphire glass to Apple. At the same time, the latter also provided GT Advanced with a loan of 439 million US dollars. 
However, although GTAT has invested heavily in increasing its production of sapphire materials in order to supply Apple, the company publicly complained in October that the supply contract with Apple led to bankruptcy.
In fact, GTAT filed for bankruptcy protection in October this year, less than a year before the company announced the supply of sapphire glass to Apple.
Previously, analysts have determined that Apple will use this sapphire glass to enhance the screen strength of mobile devices in new devices, but the latest generation of iPhone has unexpectedly not used this material.
After the news was exposed, investors were shocked. The company's share price also plummeted by more than 90% to less than $1, and was even suspended.
GTAT's lawyer, Luc Despins, told the court before that he expected each sapphire furnace to cost around $500,000. 
On December 24, GT Advanced Technologies, a former sapphire glass supplier, said that the company plans to pay a portion of its cash to its partner partner Apple by selling a sapphire furnace.