Safety Configuration Identifier (SCID)

The Safety Configuration Identifier (SCID) is a combination of the Safety Configuration CRC (SCCRC) and Safety Configuration Time Stamp (SCTS). The SCID serves as a unique identifier of a configuration for the safety option and the fail-safe controller.

The Safety Configuration CRC (SCCRC) is the checksum (CRC) of the application-specific configuration data of the safety option.

The Safety Configuration Time Stamp (SCTS) is the time stamp of the application-specific configuration data of the safety option. The SCTS is transferred in the CIP date and time format as a hex value.

The safety option has a statically defined SCTS with the value 0x02932E004792. This corresponds to the time stamp March 1, 2022/12:00. In the MOVISUITE^® engineering tool, the SCTS is recalculated on the basis of the locally set local time of the computer system and displayed via a display parameter.

The SCID displayed in the MOVISUITE^® engineering tool must be applied for the connection process if the user intends for the application-specific configuration data to be verified by the safety option when establishing a connection (SafetyOpen Type 2a). To do so, the user must read out the SCCRC and SCTS values from the MOVISUITE^® engineering tool and apply them in the engineering tool of the fail-safe controller (recommended application).

If the user initiates the establishing of a connection with an SCID equal to zero, then no check of the SCID will be carried out in the safety option. In this case, the user is personally responsible for ensuring that the fail-safe controller and the safety option are correctly configured (SafetyOpen Type 2b). The mechanism is supported, but it is not recommended for the productive application.

The safety option cannot be configured via a fail-safe controller in the connection process (no SafetyOpen Type 1 is supported).