378
Clock
Section 6-8
6-8
Clock
A clock is built into the CP1H CPU Unit and is backed up by a battery. The
current 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 CP1H-CPU - 05-2006
Page 2: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised May 2006...
Page 3: ...iv...
Page 11: ...xii TABLE OF CONTENTS...
Page 15: ...xvi...
Page 19: ...xx...
Page 31: ...xxxii Conformance to EC Directives 6...
Page 71: ...40 Function Blocks Section 1 5...
Page 133: ...102 Computing the Cycle Time Section 2 7...
Page 169: ...138 CPM1A Expansion I O Unit Wiring Section 3 6...
Page 411: ...380 Clock Section 6 8...
Page 519: ...488 Replacing User serviceable Parts Section 10 2...
Page 527: ...496 Standard Models Appendix A...
Page 535: ...504 Dimensions Diagrams Appendix B...
Page 628: ...597 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 629: ...598 Connections to Serial Communications Option Boards Appendix F...
Page 659: ...628 PLC Setup Appendix G...
Page 665: ...634 Index work words 159 write protection 370...
Page 667: ...636 Revision History...