Siemens Sinumerik 840D sl Programming Manual page 145

RTS Clear To Send (clear to send message for serial data interfaces, activate sending part, control signal
from serial data interfaces)
SBL Single Block: Single block
SD Setting data
SDB System Data Block
SEA Setting Data Active: Identifier (file type) for setting data
SFB System function block
SFC System function call: System function call
SK Softkey
SKP Skip block: Skip block
SM Stepper motor
SPF Sub Routine File: Subroutine
PLC Programmable logic control system
SRAM Static read-only memory (battery buffered)
TNRC Tool nose radius compensation
SS Interface signal
LEC Lead screw error compensation
SSI Serial Synchronous Interface: Synchronous serial interface
SW Software
SYF System Files: System files
TEA Testing Data Active: Designation for machine data
TO Tool Offset: Tool offset
ISO Milling
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
Abbreviations
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