Eaton Electrical PROFIBUS-DP EZ204-DP - Manual (Page 49)

Data exchange procedure
For more information visit: www.EatonElectrical.com MN05013001E 45
The following tables show the different control commands
possible. These essential control commands fall into three
essential categories – real-time clock, image and function
blocks.
Telegram structure
J
In order to use input/output data and control commands
simultaneously:
Only after the “Control commands” data exchange has
been completed, will the I/O data be refreshed.
All specified commands and parameters must be
transferred in hexadecimal format.
J Please also note the relevant description of the real-time
clock provided in the EZ500/700 manual (MN05013003E).
Byte Meaning Value (hex), sent by
Master Slave
0 Toggle byte J page 44
1 Command
Read 93 –
Write B3 –
Response
Read successful – C2
Write successful – C1
Command rejected – C0
2 Len 05 05
3 Index 0 – 2 1 0 – 2 1
4 – 8 Data 1 – 4 depending on index,
J Table 6
1) 0 = Time/date, J Table 6
1 = Summer time, J Table 7
2 = Winter time, J Table 8