362
7-Segment LED Display
Section 6-3
6-3
7-Segment LED Display
A two-digit 7-segment LED display makes it easy to monitor PLC status. This
improves the human-machine interface for maintenance, making it easier to
detect troubles that may occur during machine operation. The items indicated
below can be displayed.
Contents of Display
The following items can be displayed in the 7-segment LED.
• Unit version (only when the power supply is ON)
• Error codes for errors that occur during CPU Unit operation
• Progress of transfers between the CPU Unit and Memory Cassette
• Changes in values when using the analog adjuster
• User-defined codes from special display instructions in the ladder pro-
gram
Unit Version Display
The CPU Unit version is displayed for approximately 1 s when the power sup-
ply is turned ON.
CPU Unit Error Display
When an error occurs at the CPU Unit, the error code is displayed. If multiple
errors occur simultaneously, they are prioritized for display in order of impor-
tance. Then, as each error is cleared, the error code for the next one is dis-
played.
For details, refer to
11-1 Error Classification and Confirmation
.
Two-digit 7-segment LED display
1.0
:Unit version 1.0
Summary of Contents for CP1H CPU UNITS - PROGRAMMING 05-2007
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Page 3: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised March 2009...
Page 4: ...iv...
Page 10: ...x...
Page 18: ...xviii...
Page 22: ...xxii...
Page 34: ...xxxiv Conformance to EC Directives 6...
Page 174: ...140 CP series Expansion I O Unit Wiring Section 3 6...
Page 370: ...336 Analog I O XA CPU Units Section 5 5...
Page 552: ...518 Trouble Shooting Section 8 7...
Page 595: ...561 Sample Application Section 9 12 Network Settings Network Tab Network Settings Driver Tab...
Page 598: ...564 Sample Application Section 9 12...
Page 642: ...608 Standard Models Appendix A...
Page 652: ...618 Dimensions Diagrams Appendix B...
Page 745: ...711 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 746: ...712 Connections to Serial Communications Option Boards Appendix F...
Page 776: ...742 PLC Setup Appendix G...
Page 778: ...744 Specifications for External Power Supply Expansion Appendix H...
Page 786: ...752 Revision History...