104
Safety Outputs
Section 5-4
Reflecting Output Data from Output I/O Tags to Safety Output Terminals
Output I/O tag data is reflected in the safety output terminals according to the
channel mode, as shown in the following tables.
X = 0-7
n = even numbers
5-4-4
Error Handling
Behavior on Error Detection
Behavior in Single Channel Mode
The following operations are performed if an error is detected during self-diag-
nosis.
• The safety output which the error was detected becomes inactive without
depending on the user program.
• The LED indicator of the safety output terminal with the error lights red.
• The error appears in the error history.
• The NE1A-series Controller continues to operate.
Behavior in Dual Channel Mode
The following operations are performed if an error is detected in one of the
two outputs.
• Both outputs to the external device become inactive without depending on
a user program.
• The LED indicator of the safety output terminal with the error lights red,
and LED indicator of the other output flashes red.
• The error appears in the error history.
• The NE1A-series Controller continues to operate.
The following operations are performed if the two outputs from the user pro-
gram to output I/O tags are equivalent.
• Both outputs to the external device become inactive without depending on
a user program.
• The LED indicators of the paired safety output terminals light red.
• The error appears in the error history.
• The NE1A-series Controller continues to operate.
Channel Mode
Output tag
Safety output
terminal
The meaning of status
OUT (x)
OUT (x)
Single Channel
0
0
Inactive (OFF)
1
1
Active (ON)
Channel Mode
Output tag
Safety output
terminal
The meaning of status
IN (n)
IN (n+1)
OUT
(n)
OUT
(n+1)
Dual Channel
0
0
0 (OFF) 0 (OFF) Inactive (OFF)
0
1
0 (OFF) 0 (OFF) Violation at Safety Output (OFF)
1
0
0 (OFF) 0 (OFF) Violation at Safety Output (OFF)
1
1
1 (ON)
1 (ON)
Active (ON)
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...