91
Common Functions
Section 5-1
5-1-2
I/O Power Monitor
The I/O power supply input can be monitored to confirm if it is normal. If an
I/O terminal on the NE1A-series Controller is set to any setting other than
Not
Used
and the normal power supply voltage is not input, the following items will
be displayed on the 7-segment display:
• Power supply for input not input normally: P4
• Power supply for output not input normally: P5
I/O power supply status can also be monitored in the General Status in
DeviceNet I/O communications.
5-1-3
Contact Operation Counter
Overview
In NE1A-series Controllers with unit version 1.0 or later, this function counts
the number of OFF
→
ON operations at a local input, test output, or local out-
put and stores the count internally in non-volatile memory.
• Count range: 0 to 4,294,967,295 operations (stored as 00000000 to
FFFFFFFF Hex)
• Count units: Operations
• Resolution: Depends on the cycle time.
This information can be monitored using the Network Configurator or explicit
messaging.
Note
(1) The Contact Operation Counter function (Count) and Total ON Time Mon-
itor function (Time) cannot be used simultaneously on one bit. Select one
of these functions with the Maintenance Counter Mode Choice setting.
(2) When the Maintenance Counter Mode Choice setting is changed, the col-
lected data (operations count or total ON time) will be cleared.
(3) These functions do not operate when the I/O power supply is OFF.
Setting the Contact Operations Alarm Threshold with the Network Configurator
The maintenance mode (Maintenance Counter Mode Choice) and alarm
threshold (Threshold Maintenance Counter) can be set for each local input,
test output, and local output terminal.
Operations
I/O power supply
Output device
(such as a relay)
Counting the output's OFF
ON operations:
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...