Reading the time-of-day clock – Schneider Electric Processor Adapter User Manual

Page 335

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Configuring an M1 CPU with Concept

870 USE 101 10 V.2

335

Reading the Time-of-Day Clock

Overview

This section uses an example to describe how to interpret the time-of-day clock
registers.

Example

If you reserved registers 400100...400107 as your TOD clock registers, set the time
bits, and then read the clock at 9:25:30 on Thursday, July 16, 1998, the registers
would display the following values:

Register

Reading

Indication

400100

0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0

All clock values have been set;
clock values are being read

400101

5 (decimal)

Thursday

400102

7 (decimal)

July

400103

16 (decimal)

16

400104

98 (decimal)

1998

400105

9 (decimal)

9 a.m.

40010 6

25 (decimal)

25 minutes

40010 7

30 (decimal)

30 seconds

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