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11
System Configuration
Section 1-2
System Combining a Distributed Safety Control System with Multiple NE1A-series
Controllers and a Centralized Monitoring System
This system uses each NE1A-series Controller as a Safety Master and estab-
lishes a Safety Remote I/O System with Safety Slaves.
Each NE1A-series Controller also simultaneously functions as a Standard
Slave and standard I/O communications are performed with the Standard
Master.
The Safety Control System can be monitored using a Standard PLC by allo-
cating the NE1A-series Controller’s status information (general status, local I/
O error status, or other information) or logic operation results in the Standard
PLC.
In the DeviceNet Safety System, multiple Safety Masters can be connected
on the same network. Therefore, the distributed safety control blocks can be
monitored centrally on the same network.
Also, safety I/O communications between NE1A-series Controllers can be
performed as illustrated in the following diagram. In the diagram, NE1A #2 is
set as the slave of NE1A #1 safety connections to perform safety I/O commu-
nications.
NE1A #1
Safety Master
Standard Slave
Safety Slaves by other manufacturers
Safety I/O communications
Standard PLC
Standard Master
Standard I/O
communications or
explicit messages
Safety Control System B
Safety Control System A
Monitoring System
NE1A #2
Safety Master
Standard Slave
Safety I/O communications
Safety Slaves by other manufacturers
DST1 Safety Slave
DST1 Safety Slave
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...