Application

• More functionality and flexibility through freely configurable safety logic
• Suitable for all safety applications because of its compliance with the highest safety requirements in production automation
• Suitable for use all over the world through compliance with all product-relevant, globally established certifications
• Modular hardware configuration
• Parameterization by means of software instead of wiring
• Removable terminals for greater plant availability
• Distributed detection of sensors and disconnection of actuators through AS-Interface
• All logic functions can also be used for AS-Interface, e.g. muting, protective door with tumbler
• Up to 12 independent safe switch-off groups on the AS-i bus
• Clearly expandable project data volume facilitated by AS-Interface
• Up to 50 dual-channel enabling circuits per system

Communication with PROFIBUS

The 3RK3 modular safety system can be connected to PROFIBUS through the DP interface and exchange data with higher-level control systems.

The MSS supports among other things:

• Baud rates up to 12 Mbit/s
• Automatic baud rate detection
• Cyclic services (DPV0) and acyclic services (DPV1)
• Exchange of 32-bit cyclic data with MSS Basic or 64-bit cyclic data with MSS Advanced/MSS ASIsafe
• Diagnostics using data record invocations

AS-Interface communication

The 3RK3 modular safety system can be integrated into AS-Interface with the "Advanced" central unit as well as the ASIsafe "basic" and "extended" units.

• MSS can read and evaluate the I/O data of up to 31 AS-i modules
• Up to 12 safe output signals per MSS can be placed on the AS-i bus for switching safe AS-i output modules or for fail-safe cross traffic between multiple MSS stations
• Safe cross traffic between multiple MSS stations or between one MSS and AS-i safety monitors
• Standard signals, e. g. for acknowledgment, can also be output on the AS-i bus

Integration of the MSS into AS-Interface

Notes:

For more information on AS-Interface with ASIsafe, see "Industrial Communication".

For more information on SIRIUS Safety ES, see “Parameterization, Configuration and Visualization for SIRIUS".