Siemens SINUMERIK 840D sl Function Manual page 233

Error responses
The system responses when a communication error occurs can be influenced by the user by
appropriately setting the machine data $MN_SAFE_RDP_ERR_REAC and
$MN_SAFE_RDP_SUBS - or at a later time by programming the system variables
$A_FRDP_ERR_REAC, $A_FRDP_SUBS in the SPL program.
SPL couplings (sub-slots)
Just the same as for PROFIsafe, also for F_RECVDP, only contiguous ranges of SPL input
data ($A_INSE[x] up to $A_INSE[x+y]) can be assigned to an SPL connection. If the received
F-net data are to be transferred in several non-contiguous SPL input data areas, then several
SPL connections must be parameterized. These are then designated using an identical
identifier, communication parameter and connection number, but different SPL couplings. As
part of the F_DP communication, these SPL connections are combined to form a single SPL
connection communicating via PROFIBUS with several subordinate SPL couplings (sub-slots).
Example of an NCK parameterization
The following specifications are applied for the more detailed description of the NCK
parameterization.
● Identifier
DP_DP_ID: 1000
Name: "WZM1"
● Connection number: 1
● Communication parameters
I/O start address: 298
Monitoring time: 0.5 seconds
● Net data parameters
SPL inputs used: $A_INSE[1...4]
Filter data: 000F
SPL inputs used: $A_INSE[33...36]
Filter data: F000H
● Error response:
Error response: 0
Substitute values: 0
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
8.4 Safety-related CPU-CPU communication (F_DP communication)
D
D
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Connecting sensors and actuators
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