Siemens Simatic PC Panel PC 870 - Manual (Page 67)

SIMATIC Panel PC 670/870 Start-Up Instructions a
6 Appendix
Abbreviations
ANSI American National Standards Institute
ASCII American Standard Code for Information Interchange
BIOS Basic Input Output System
CD-ROM Compact Disk – Read Only Memory
CPU Central Processing Unit
DC Direct Current
DHCP Dynamic Host Configuration Protocol
DNS Domain Name Service
DP Decentralized Periphery
DSN Data Source Name
ESD Electrostatically Sensitive Device
EMC Electromagnetic Compatibility
H Height
HF High Frequency
HMI Human Machine Interface
IF Interface
LCD Liquid Crystal Display
LED Light Emitting Diode
Mbps Megabits per second
PC Personal Computer
PU Programming Unit
PPI Point to Point Interface (SIMATIC S7)