11.03
3 Safety-Related Functions
3.12 SI I/Os using fail-safe modules connected to PROFIBUS DP (840D from SW 6.3.30)
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
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Note
Mixed 2v2 and 1v1 parameterization within an F-DI module can reduce the
number of usable SPL input data $A_INSE/INSEP. It is therefore
recommended that 1v1 is first parameterized followed by 2v2.
F-DO module
The NCK/PLC-SPL outputs $A_OUTSE/OUTSEP are logically combined in the
F driver to produce an F useful data signal (implicit 2v2 parameterization) and
mapped to the channels of the relevant F/DO module.
ET 200S F-DO module
FDO_ND1.DSF
Channel 0
Channel 1
Channel 2
Channel 3
SINUMERIK 840D
($A_OUTSE n
AND
OUTSEP n)
($A_OUTSE n+1
AND
OUTSEP n+1)
($A_OUTSE n+2
AND
OUTSEP n+2)
($A_OUTSE n+3
AND
OUTSEP n+3)
Fig. 3-50
Mapping the SPL output data to F-DO channels
When parameterizing the PROFIsafe clock cycle, the DP cycle time determined
by the HW Config must be observed to ensure correct PROFIsafe
communications. Also refer to the following Chapter: Parameterizing the
SINUMERIK 840D NCK
After the station has been fully configured, the DP cycle time can be
determined by activating the isochronous bus cycle as follows:
In HW Config, open the properties dialog box of the PROFIBUS: DP master of
the configured station:
Dialog box: Properties – DP Master system
Tab:
General
Subnet,
Button:
Properties
Dialog box: Properties – PROFIBUS
Tab:
Network
settings
Button:
Options
Dialog
box:
Options
Tab:
Equidistance
Checkbox:
Activate equidistant bus cycle
Recalculate
equidistant
time
(
Note: Activate the equidistant bus cycle via the option field: "Activate
equidistant bus cycle/Recalculate equidistant time".)
Display field:
Equidistant bus cycle
(
Note: The value calculated by HW Config and displayed in the field:
"Equidistant bus cycle" is the same as the DP cycle time)
Cancel
Cancel
Cancel
PROFIsafe cycle and
DP cycle time
Dialog box
