S7: Memory Configuration; Brief Description; Memory Organization; Active And Passive File System - Siemens SINUMERIK 840D sl Function Manual

Hide thumbs Also See for SINUMERIK 840D sl:

Table of Contents

S7: Memory configuration

Memory types

To store and manage data, the NC requires a static memory and a dynamic memory:

● Static NC memory

● Dynamic NC memory

The memory areas of the individual data groups in the static and dynamic NC memories

have defined sizes, which are fixed when the memory is configured.

This type of memory organization ensures the deterministic behavior of the control:

The reserved memory area is guaranteed throughout part program processing.

Memory configuration

When booted for the first time, the system enters default values in all other memory-

configuration machine data. This configuration is adequate in most cases. However, the

machine manufacturer/user can make changes at any time (Reconfiguration).

Memory organization

The static NC memory contains an active and passive file system.

Extended Functions

Function Manual, 09/2009, 6FC5397-1BP20-0BA0

In the static NC memory, the program data (part programs, cycles, etc.) and the current

system and user data (tool management, global user data, etc.) is saved to persistent

In the dynamic NC memory the data is saved to non-persistent memory. The data here

concerns information generated by the NC that is only required for a limited time (e.g.,

macros, local user data, interpolation buffer, etc.).

Show Quick Links

Table of Contents

Sinumerik 840de sl Sinumerik 828d