Siemens Sinamics S120 Function Manual page 221

Checking the checksum
For each monitoring channel, the Safety parameters include 2 parameters for the reference
and actual checksum for the Safety parameters that have undergone a checksum check.
During commissioning, the actual checksum must be transferred to the corresponding
parameter for the reference checksum. This can be done for all checksums of a drive object
at the same time using parameter p9701 or using the corresponding STARTER functionality.
● Basic Functions
● Extended Functions (contain also the following checksum parameters)
During each ramp-up procedure, the actual checksum is calculated via the Safety
parameters and then compared with the reference checksum.
If the actual and reference checksums are different, fault F01650/F30650 or F01680/F30680
is output.
Function diagrams (see SINAMICS S120/S150 List M anual)
• 2818
Safety Integrated
Function Manual, (FHS), 07/2016, 6SL3097-4AR00-0BP6
SI actual checksum SI parameters (Control Unit)
r9798
•
SI reference checksum SI parameters (Control Unit)
p9799
•
SI actual checksum SI parameters (Motor Module)
r9898
•
SI reference checksum SI parameters (Motor Module)
p9899
•
SI Motion actual checksum SI parameters (Motor Module)
r9398[0...1]
•
SI Motion reference checksum SI parameters (Motor Module)
p9399[0...1]
•
SI Motion actual checksum SI parameters
r9728[0...2]
•
SI Motion reference checksum SI parameters
p9729[0...2]
•
SI Extended Functions - Parameter managers
Commissioning
6.2 Parameters, checksum, version
221