2
About NE1A-series Safety Network Controllers
Section 1-1
1-1
About NE1A-series Safety Network Controllers
1-1-1
Introduction to the NE1A-series Safety Network Controllers
The NE1A-series Safety Network Controllers provide various functions, such
as safety logic operations, safety I/O control, and a DeviceNet Safety protocol.
The NE1A-series Controller allows the user to construct a safety control/net-
work system that meets the requirements for Safety Integrity Level (SIL) 3
according to IEC 61508 (Functional Safety of Electrical/Electronic/ Program-
mable Electronic Safety-related Systems) and the requirements for Safety
Category 4 according to EN 954-1.
In the example system shown below, the safety control system implemented
with an NE1A-series Controller and the monitoring system implemented with
a Standard PLC are realized on the same network.
• As a Safety Logic Controller, the NE1A-series Controller executes safety
logic operations and controls local I/O.
• As a DeviceNet Safety Master, the NE1A-series Controller controls the
remote I/O of DeviceNet Safety Slaves.
• As a DeviceNet Standard Slave, the NE1A-series Controller communi-
cates with the DeviceNet Standard Master.
Standard PLC
Standard Master
NE1A
Safety Master
Standard Slave
Standard Slave
Network Configurator
DST1 series
Safety Slave
Safety related Control
Non-safety-related Control
(Standard Control)
Safety Logic Operations and
Safety I/O Control
The PLC system monitors the
NE1A (i.e., the safety control
system) using DeviceNet I/O
communications and explicit
messages.
The DeviceNet Safety
System controls remote I/O.
Summary of Contents for NE1A-SCPU01 - 07-2009
Page 3: ...iv...
Page 9: ...x TABLE OF CONTENTS...
Page 11: ...xii...
Page 15: ...xvi...
Page 70: ...35 Installation Section 3 1 Top Top Bottom Bottom...
Page 72: ...37 Installation Section 3 1 3 1 3 Dimensions and Weight Dimensions NE1A SCPU01 V1...
Page 85: ...50 Wiring Section 3 2...
Page 123: ...88 Explicit Message Communications Section 4 7...
Page 141: ...106 Safety Outputs Section 5 4...
Page 257: ...222 Connection Status Tables Section 10 8...
Page 261: ...226 NE1A series Controller Replacement Section 11 2...
Page 264: ...229 Appendix A Local Input and Test Output Setting Example Local Output Setting Example...
Page 266: ...231 Appendix A Programming Example Local Input and Test Output Setting Example...
Page 267: ...232 Appendix A Local Output Setting Example...
Page 269: ...234 Appendix A Programming Example Local Input and Test Output Setting Example...
Page 270: ...235 Appendix A Local Output Setting Example...
Page 273: ...238 Appendix A Local Input and Test Output Setting Example Local Output Setting Example...
Page 275: ...240 Appendix A Programming Example Local Input and Test Output Setting Example...
Page 276: ...241 Appendix A Local Output Setting Example...
Page 289: ...254...
Page 293: ...258 Index...