B&R Industries Automation PC 620, User Manual

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Appendix A • Glossary
Automation PC 620 User's Manual V 1.90
MTC
An abbreviation for »Maintenance Controller« The MTC is an independent processor system,
which provides additional functions for a B&R Industrial PC that are not available with a normal
PC. The MTC communicates with the B&R Industrial PC via the ISA bus (using a couple
register).
MTCX
Abbreviation for »MainTenance Controller EXtended«
Multitasking
Multitasking is an operating mode in an operating system, which allows several computer tasks
to be executed parallel and simultaneously.
OEM
Original Equipment Manufacturer;A company that integrates third-party and in-house
manufactured components into their own product range and then distributes these products
under its own name.
OPC
OLE for Process Control > A communication standard for components in the area of
automation. The goal of OPC development is to provide an open interface that builds on
Windows-based technologies such as OLE, COM and DCOM. It allows problem-free
standardized data transfer between controllers, operating and monitoring systems, field devices
and office applications of different manufacturers. This development is promoted by the OPC
foundation, which is made up of over 200 companies from around the world, including Microsoft
and other leading companies. Nowadays, OPC is also interpreted as a synonym for Openness,
Productivity and Connectivity, symbolizing the new possibilities that this standard opens up.
OPC server
The missing link between connection modules for the InterBus and the visualization. It
communicates serially with the connection modules via the ISA or PCI bus or Ethernet.
Panel
A common term for B&R display units (with or without keys).
PCI bus
Abbreviation for »Peripheral Component Interconnect Bus«; Developed by INTEL as an
intermediary/local bus for the latest PC generation. It is basically a synchronous bus. The main
clock of the CPU is used for synchronization. The PCI bus is microprocessor independent,
compatible with 32-bit and 64-bit and supports both 3.3 V and 5 V cards and devices.
O
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