Siemens PC 670 manual Glossary, COM2 port

Glossary

A

APM

Advanced Power Management.

Application

An application is a program directly linked to the MS-DOS or Windows operating system. Applications on SIMATIC PCs are, for example, the visualization packages SIMATIC ProTool/Pro, SIMATIC WinCC and others.

Automation system (AS)

A controller in the SIMATIC S7 series (for example, SIMATIC S7-200/300/400).

C

Cache

Buffer between working memory and central processing unit.

COM1 port

Serial V.24/modem port, 25-pin, sub-D connectors, sockets. The port is suitable for asynchronous data transmission. It can also be used to connect printers having a serial interface.

COM2 port

Serial V.24 port, 9-pin, sub-D connectors, pins. Preferred for connecting a mouse of other external devices (for example, a printer).

Configuration file

Contains data which define the appearance of a configuration following a complete restart. These files are e.g. register files.

Panel PC 670 Computing Unit, Equipment Manual Glossary-1