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393
Clock
Section 6-9
6-9
Clock
A clock is built into the CP1L CPU Unit and is backed up by a battery. The cur-
rent data is stored in the following words and refreshed each cycle.
Note
The clock cannot be used if a battery is not installed or the battery voltage is
low.
Name
Addresses
Function
Clock data:
A351 to A354
A351.00 to A351.07
Second: 00 to 59 (BCD)
A351.08 to A351.15
Minute: 00 to 59 (BCD)
A352.00 to A352.07
Hour: 00 to 23 (BCD)
A352.08 to A352.15
Day of the month: 00 to 31 (BCD)
A353.00 to A353.07
Month: 00 to 12 (BCD)
A353.08 to A353.15
Year: 00 to 99 (BCD)
A354.00 to A354.07
Day of the week:
00: Sunday, 01: Monday,
02: Tuesday, 03: Wednesday,
04: Thursday, 05: Friday, 06: Saturday
Summary of Contents for CP1L - 12-2007
Page 3: ...iv...
Page 9: ...x...
Page 13: ...xiv TABLE OF CONTENTS...
Page 21: ...xxii...
Page 33: ...xxxiv Conformance to EC Directives 6...
Page 65: ...32 Function Blocks Section 1 5...
Page 428: ...395 Clock Section 6 9...
Page 429: ...396 Clock Section 6 9...
Page 523: ...488 Troubleshooting Unit Errors Section 9 4...
Page 531: ...496 Replacing User serviceable Parts Section 10 2...
Page 563: ...528 Auxiliary Area Allocations by Function Appendix C...
Page 611: ...576 Auxiliary Area Allocations by Address Appendix D...
Page 638: ...603 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 639: ...604 Connections to Serial Communications Option Boards Appendix F...
Page 669: ...634 Index...
Page 671: ...636 Revision History...