Siemens SINUMERIK 840D Programming Guide

3
File and Program Management 08.97
3.1 Overview
3
840D
NCU 571
840D
NCU 572
NCU 573
FM-NC 810D 840Di
Siemens AG 2000. All rights reserved
3-122
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA)
−
04.00 Edition
3.1 Overview
Memory structure
The memory structure available to the user is
organized in two areas.
1. User memory
The user memory contains the current system and
user data with which the control operates (active file
system).
Example:
Active machine data, tool offset data, zero offsets.
2. Program memory
The files and programs are stored in the program
memory and are thus permanently stored (passive
file system).
Example:
Main programs and subprograms, macro definitions.

Siemens SINUMERIK 840D Specifications

General

Series	SINUMERIK 840D
Axes	Up to 31
Channels	Up to 10
Operating System	Windows-based
Power Supply	24 V DC
Control Unit Type	CNC
Interface	Ethernet, PROFIBUS
Display	TFT color display
Interpolation	Spline
PLC	Integrated PLC
Data Storage	CompactFlash, USB