A 
 
Appendix  03.04 
 Abbreviations 
 
 
Ó Siemens AG, 2004. All rights reserved 
A-468    SINUMERIK 840D/840Di/810D Operator’s Guide HMI Advanced (BAD) – 03.04 Edition 
   
INI 
Initializing Data  
 
   
IPO 
Interpolator 
 
   
IS 
Interface signal 
 
   
ISA 
Industry Standard Architecture 
 
   
ISO 
International Standardization Organization 
 
   
ISO Code 
Special tape code, number of perforations per character is always 
even 
 
   
JOG 
Jog mode: Setup mode 
 
   
K
UE
 
Transmission ratio 
 
   
K
v
 
Servo gain factor 
 
   
LAD 
Ladder diagram (programming method for PLC) 
 
   
LCD 
Liquid Crystal Display 
 
   
LEC 
Leadscrew Error Compensation 
 
   
LED 
Light Emitting Diode 
 
   
LF 
Line Feed 
 
   
LUD 
Local User Data  
 
   
MB 
Megabyte 
 
   
MC 
Measuring Circuit 
 
   
MCP 
Machine Control Panel 
 
   
MCS 
Machine Coordinate System (Machine) 
 
   
MD 
Machine Data 
 
   
MDI 
Manual Data Input