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DeviceNet Safety System Overview
Section 1-1
1-1
DeviceNet Safety System Overview
1-1-1
About DeviceNet Safety
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 Network Controller
-
Safety Master functions
-
Standard Slave functions
Standard PLC and Master
Safety I/O Terminal
-
Safety Slave functions
-
Standard Slave functions
Safety Network Controller
-
Safety Slave functions
-
Standard Slave functions
Standard Slave
Network Configurator
Safety
configuration
Standard
configuration
Safety communications
Safety Control performed by the
Safety Network Controller
-
Safety remote I/O communications
Standard Control and Monitoring by
the Standard PLC
-
Standard remote I/O communications
-
Explicit message communications
Standard communications
Summary of Contents for DeviceNet Safety
Page 1: ...SYSTEM CONFIGURATION MANUAL Cat No Z905 E1 07 DeviceNet Safety...
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Page 5: ...DeviceNet Safety System Configuration Manual Revised July 2009...
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Page 11: ...ix TABLE OF CONTENTS Appendix 277 Glossary 333 Index 335 Revision History 339...
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