Siemens SINUMERIK 840D sl Function Manual page 270

Data Description
8.1 Machine data for SINUMERIK 840D sl
10098
MD number
Default value: 1
Change becomes effective after: POWER ON
Data type: DWORD
Significance:
Special cases, errors,...
10099
MD number
Default value: 0.0
Change becomes effective after: Power On
Data type: DOUBLE
Significance:
Special cases, errors,...
10385
MD number
Default value: 0
Change becomes effective after: POWER ON
Data type: DWORD
Significance:
Special cases, errors,...
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
$MN_PROFISAFE_IPO_TIME_RA TIO
Factor PROFIsafe communications clock cycle time
Min. input limit: 1
Protection level: 7/1
Ratio between PROFIsafe communication and interpolation clock cycle. The actual PROFI-
safe communication clock cycle is the product from this data and IPO_CYCLE_TIME and is
displayed in MD INFO_PROFISAFE_CYCLE_TIME. In this clock cycle, OB40 on the PLC
side is initiated from the NCK to enable communication between the F master and F slaves.
The PROFIsafe communications clock cycle may not be greater than 25 ms.
$MN_INFO_PROFISAFE_CYCLE_TIME
PROFIsafe communications clock cycle time
Min. input limit: –
Protection level: 7/0
Display data: Time grid for communications between an F master and F slave. The value is
obtained from the interpolator clock cycle and MD $MN_PROFISAFE_IPO_TIME_RATIO.
The value cannot be changed. PROFIsafe communications via the OB40 in the PLC use
this time grid.
$MN_PROFISAFE_MASTER_ADDRESS
PROFIsafe address of the PROFIsafe master module
Min. input limit: 0
Protection level: 7/2
Defines the PROFIsafe address for the F master NCK/PLC. This is used to uniquely assign
an F master to an F slave. This parameter must be entered in accordance with the
"F_source_address" parameter set in S7–ES for the F slaves. An attempt to establish com-
munications is only made for F slaves that have entered this address.
Max. input limit: 25
Unit: –
Max. input limit: –
Unit: s
Max. input limit: 0x0500FA 7D
Unit: –
© Siemens AG 2008 All Rights Reserved
05.08