Changing Machine Data - Siemens Sinumerik 840D sl Function Manual

Commissioning

9.4 Changing machine data

9.4 Changing machine data
The user must enter the correct password before he can change the machine data
for SI functions to the system. After data for SI functions has been altered, a new
acceptance test must be carried out on the SI function(s) involved and then
recorded and confirmed in the acceptance report.
Change report
Changes made to NCK machine data important for Safety Integrated are recorded
in a display data. The time that the change is made is displayed in
an axis 36996 $MA_SAFE_CONFIG_CHANGE_DATE[0...6] and
an NCK--MD13316 $MN_SAFE_GLOB_CFG_CHANGE_DATE[0...6].
This MD can neither be overwritten by manual entry nor by loading an MD archive.
The only way to delete this MD is to boot the control from the general reset mode
(service switch position 1).
This data is updated when the following changes are made to the NCK machine
data:
S A modified safety MD configuration is activated
(NCK--Safety--MD have been changed and acknowledged by correction of
$MA_SAFE_DES_CHECKSUM or $MN_SAFE_GLOB_DES_CHECKSUM).
Changes, depending on the modified MD context (axis--specific MD or NCK--
MD), are listed in MD $MN_SAFE_GLOB_CONFIG_CHANGE_DATE or in MD
$MA_SAFE_CONFIG_CHANGE_DATE.
S Changes in the S7 configuration regarding PROFIsafe--relevant parameters.
These are all of the values that go into the PROFIsafe CRC1 (e.g. PROFIsafe
source and target address, PROFIsafe monitoring time). Changes are listed in
MD $MN_SAFE_GLOB_CONFIG_CHANGE_DATE.
S When MD $MA_SAFE_FUNCTION_ENABLE is changed from values not equal
to zero to zero, or from zero to values not equal to zero. These changes mean
that the safety functionality of an axis is completely enabled/disabled. Changes
are listed in MD $MN_SAFE_CONFIG_CHANGE_DATE.
Other changes to MD $MA_SAFE_FUNCTION_ENABLE (selecting/deselecting
individual safety functions) always change MD $MA_SAFE_ACT_CHECKSUM,
which themselves have to be acknowledged by changes to MD
$MA_SAFE_DES_CHECKSUM. Changes are listed in MD $MA_SAFE_CON-
FIG_CHANGE_DATE.
S When MD $MA_SAFE_FUNCTION_ENABLE is changed by reducing the
safety option. If the scope of axis--specific safety functions is enabled for more
axes than are set in the safety option data, the function enable for the excess
number of axes is automatically cancelled again when the control boots. This
deletion is noted in MD $MA_SAFE_CONFIG_CHANGE_DATE. This proce-
dure is associated with the initiation of alarm 8041 "Axis %1: MD %2 reset, the
associated option is not sufficient" This alarm disappears at the next power on,
however the entry in MD $MA_SAFE_CONFIG_CHANGE_DATE is kept.
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
© Siemens AG 2015 All Rights Reserved
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