Siemens SINUMERIK 840D sl Function Manual page 232

Connecting sensors and actuators
8.4 Safety-related CPU-CPU communication (F_DP communication)
Interface overview
Figure 8-29
Activation data
Every parameterizing data set can be separately activated using the activation data.
Parameterizing data
The parameterizing data set of an SPL connection involves the following data areas:
● Identifier:
DP_DP_ID: MD1334: $MN_SAFE_RDP_ID
Name: MD13342 $MN_SAFE_RDP_NAME
● Connection number: MD13343 $MN_SAFE_RDP_CONNECTION_NR #
● Communication parameters:
I/O start address: MD13344 $MN_SAFE_RDP_LADDR #
Monitoring time: MD13345 $MN_SAFE_RDP_TIMEOUT #
● Net data parameters:
SPL assignment: MD13346 $MN_SAFE_RDP_ASSIGN:
F-net data filter: MD13347 $MN_SAFE_RDP_FILTER
● Error response:
Error response: MD13348 $MN_SAFE_RDP_ERR_RE
Substitute values: MD13349 $MN_SAFE_RDP_SUBS #
For SPL connections with the same identifier, all parameters identified with # must be identical.
In case of an error, Alarm 27305 "F_DP: Parameter MD %1[%2] < > MD %3[%4]" is output.
Input/output data
The input and output data provide the user or SPL programmer an interface compatible to the
SIMATIC F-application blocks using system variables.
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Interface overview F_RECVDP
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Safety Integrated