Appendix; A.1 Abbreviations - Siemens Sinumerik 840D sl Diagnostic Manual

Appendix

A.1 Abbreviations
ASCII American Standard Code for Information Interchange
AV Job planning
BA Operating mode
BB Ready to run
BCD Binary Coded Decimals: Decimals encrypted in binary code
CNC Computerized Numerical Control
CP Communications Processor
CPU Central Processing Unit
CR Carriage Return
CRC Cutter Radius Compensation
CSB Central Service Board: PLC module
CTS Clear To Send: Signal from serial data interfaces
DAC Digital-to-Analog Converter
DB Data Block
DIN German standard
DIO Data Input/Output: Data transfer display
DRF Differential Resolver Function: Handwheel jog
DRY Dry Run: Dry run feedrate
DSB Decoding Single Block
DSR Data Send Ready:
Signal from serial data interfaces indicating that they are ready to send
DW Data Word
EIA code Special punched tape code, number of holes per character always odd
EPROM Erasable Programmable Read Only Memory
ETC ETC Key: Expansion of the softkey bar in the same menu
FDB Product database
FDD Feed Drive (spindle)
FIFO First In First Out: Memory, which works without address specification where data are
read in the same order, in which they were stored.
© Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
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