Devicenet Safety System Overview; About Devicenet Safety - Omron DEVICENET SAFETY - SYSTEM CONFIGURATION 07-2009 System Configuration Manual

DeviceNet Safety System Overview

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DeviceNet Safety System Overview

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About DeviceNet Safety

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DeviceNet is an open-field, multi-vendor, multi-bit network, which combines
the controls in the machine and line control levels with information. The
DeviceNet Safety network adds safety functions to the conventional standard
DeviceNet communications protocol. The DeviceNet Safety concept has been
approved by a third-party organization (TÜV Rhineland).
Just as with DeviceNet, DeviceNet Safety-compliant devices from third-party
vendors can be connected to a DeviceNet Safety network. Also, DeviceNet-
compliant devices and DeviceNet Safety-compliant devices can be combined
and connected on the same network.
By combining DeviceNet Safety-compliant products, a user can construct a
safety control/network system that meets the requirements for Safety Integrity
Level (SIL) 3 according to IEC 61508 (Functional Safety of Electrical/Elec-
tronic/Programmable Electronic Safety-related Systems) and the require-
ments for Safety Category 4 according to EN 954-1.
Safety Control performed by the
Safety Network Controller
- Safety remote I/O communications
Safety Network Controller
- Safety Master functions
- Standard Slave functions
Safety communications
Safety I/O Terminal
- Safety Slave functions
- Standard Slave functions
Network Configurator
Safety Standard
configuration configuration
Standard communications
Safety Network Controller
- Safety Slave functions
- Standard Slave functions
Section 1-1
Standard Control and Monitoring by
the Standard PLC
- Standard remote I/O communications
- Explicit message communications
Standard PLC and Master
Standard Slave