Parameter, Checksum, Version, Password - Siemens SINAMICS S120 Function Manual

General information about SINAMICS Safety Integrated

1.3 Parameter, Checksum, Version, Password

1.3 Parameter, Checksum, Version, Password
Properties of Safety Integrated parameters
The following applies to Safety Integrated parameters:
● They are kept separate for each monitoring channel.
● During startup, a checksum (Cyclic Redundancy Check, CRC) over the safety parameters
● Data storage: The parameters are stored on the non-volatile CompactFlash card.
● Factory settings for safety parameters
● They are password-protected against accidental or unauthorized changes.
Checking the checksum
For each monitoring channel, the safety parameters include one parameter for the 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 specified checksum. This can be done for all checksums of a drive object
at the same time with parameter p9701.
Basic functions
● r9798 SI actual checksum SI parameters (Control Unit)
● p9799 SI reference checksum SI parameters (Control Unit)
● r9898 SI actual checksum SI parameters (Motor Module)
● p9899 SI reference checksum SI parameters (Motor Module)
Extended Functions
● r9398[0...1] SI Motion actual checksum SI parameters (Motor Module)
● r9399[0...1] SI Motion specified checksum SI parameters (Motor Module)
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is generated and checked. The display parameters are not contained in the CRC.
A reset of the safety parameters to the factory setting on a drive-specific basis using
p0970 or p3900 and p0010 = 30 is only possible when the safety functions are not
enabled (p9301 = p9501 = p9601 = p9801 = p10010 = 0).
A complete reset of all parameters to the factory settings (p0976 = 1 and p0009 = 30 on
the Control Unit) is possible even when the safety functions are enabled (p9301 = p9501
= p9601 = p9801 = p10010 ≠ 0).
NOTICE
The following safety parameters are not protected by the safety password:
• p9370 SI Motion acceptance test mode (Motor Module)
• p9570 SI Motion acceptance test mode (Control Unit)
• p9510 SI Motion isochronous PROFIBUS Master
• p9533 SI Motion SLS Setpoint speed limitation
• p9705 BI: SI Motion Test stop signal source
Function Manual, (FHS) , 07/2007 Edition, 6SL3097-2AR00-0BP0
Safety Integrated