Siemens SINUMERIK 840D sl Function Manual page 206

Connecting Sensors/Actuators
7.2 Connecting I/O via PROFIsafe
Fig. 7-13
Note
If mixed 2v2 and 1v1 parameterization is used in an F--DI module, this can reduce
the number of SPL input data $A_INSE/INSEP that can be used. This is the
reason that we recommend that 1v1 is first parameterized followed by 2v2.
If more pieces of F net data of an F--DI module are used then the number relevant
bits that can be transferred by parameterizing the channels of the F--DI module,
then the control does not recognize this.
Example:
For a 2v2 parameterization of all of the channels of the F--DI module:
-- ET 200S F, F--DI module: 4/8 F--DI 24 V DC
The 8 transferred F net data bits contain 4 relevant (bit 0 -- bit 3) and 4
non--relevant bits (bit 4 -- bit 7).
F- -DO module
The NCK/PLC--SPL outputs $A_OUTSE/OUTSEP are logically combined in the F
driver to produce an F net (useful) data signal(implicit 2v2 parameterization) and
mapped to the channels of the relevant F--DO module.
Fig. 7-14
7-206
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 05.2008 Edition
ET 200S F- -DI module
channel 0
channel 1
channel 2
channel 3
channel 4
channel 5
channel 6
channel 7
2v2/1v1 mapping of the F--DI channels to SPL input data
ET 200S F--DO module
channel 0
channel 1
channel 2
channel 3
Mapping the SPL output data to F--DO channels
SINUMERIK 840D sl
$A_INSE/INSEP[n]
$A_INSE/INSEP[n+1]
$A_INSE/INSEP[n+2]
AND
AND $A_INSE/INSEP[n+3]
$A_INSE/INSEP[n+4]
$A_INSE/INSEP[n+5]
Configuration, channel x,y = 2v2
Configuration, channel x,y = 1v1
SINUMERIK 840D sl
AND OUTSEP[n])
($A_OUTSE[n]
OUTSEP[n+1])
AND
($A_OUTSE[n+1]
AND
($A_OUTSE[n+2] OUTSEP[n+2])
AND
OUTSEP[n+3])
($A_OUTSE[n+3]
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05.08