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SINUMERIK 802D sl Operating and Service Training Manual Page 1

C18

Restore Saved Data

C18

1 Brief description

Module objective:

Upon completion of this

module you can restore the data which is stored in the flash memory to the

internal SRAM (active,

volatile) memory of the CNC controller.

See hand book module C17 Save data

Module description:

The 802D SL controller

executes with data which is stored in volatile memory. This volatile memory is

retained using a GoldCap capacitor

. If the machine is powered off for more than 50 hours, the data

which is stor

ed in the volatile memory can be lost. It is therefore necessary to Save this data to Flash

memory wh

en the machine is switched off for periods which are longer than 50 hours. When neces-

sary this pre

viously saved data can be reloaded to the volatile memory from the Flash memory.

All data excluding the PLC program

are saved, the

PLC is st

ored always in non-volatile memory

(Flash memory) and will not be lost

upon dissipation of the GoldCap.

This module describes t

he methods of re

storing t

he previously saved data.

See hand book module C17 Save data

Module content:

• Performing a Restore of saved data

Performing a Restore

of saved data

Section 2

Siemens SINUMERIK 802D Training Manual

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