26
Table 4-55 Write Request
Message type (ASCII)
‘u’
Message body (hexadecimal)
Request/Response
Field Offset Length Parameter Range
1 0 2 Annual calendar number 0-1
2 2 2 Calendar year 0-99
This request allows you to associate a specific year with one of the two TOU system annual calendars.
4.21 Real Time Clock
Table 4-56 Read Request
Message type (ASCII)
‘S’
Message body (decimal)
Request - no body
Response
Field Offset Length Parameter Range
1 0 2 Second 0-59
2 2 2 Minute 0-59
3 4 2 Hour 0-23
4 6 2 Day 1-31
5 8 2 Month 1-12
6 10 2 Year 0-99
7 12 2 Day of week 1-7 (1=Sunday)
Table 4-57 Write Request
Message type (ASCII)
‘T’
Message body (decimal)
Request/Response
Field Offset Length Parameter Range
1 0 2 Second 0-59
2 2 2 Minute 0-59
3 4 2 Hour 0-23
4 6 2 Day 1-31
5 8 2 Month 1-12
6 10 2 Year 0-99
7 12 2 Day of week 1-7 (1=Sunday)
The day of week is not checked when written. It is set automatically when you change the date.