Eaton Electrical PROFIBUS-DP EZ204-DP - Manual (Page 101)

Read/write date and time
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Table 44: Byte 4 – 8: Data 1 – 5
Byte Contents Value
(hex)
4 Data 1 Area
None 00
Manual 01
Automatic EU 02
Automatic GB 03
Automatic US 04
5 Data 21 Set summer time day
(1 to 28, 29, 30, 31 depending on
month and year)
00 – 3B
6 Data 31 Set Summer time month
(1 to 12)
01 – 1F
7 Data 41 Set winter time day
(1 to 28, 29, 30, 31 depending on
month and year)
01 – 0C
8 Data 51 Set winter time month (1 to 12) 00 – 63
1) The additional parameters Data 2 to Data 5 for automatic DST
change are only relevant if you have set the “Manual” parameter
for Data 1.