Eaton Electrical PROFIBUS-DP EZ204-DP - Manual (Page 64)

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Control commands for EZ700
MN05013001E 60
Markers: M1 – M16/N1 – N16
Unlike the write operation, the marker read operation reads
the entire marker area of a particular marker type (M or N) is
read.
Telegram structure
Byte Meaning Value (hex), sent by
Master Slave
0 Toggle byte J page 44
1 Command: Read 88 –
Response:
Read successful – C2
Command
rejected
– C0 1
2 Len 01 01
3 Type
M marker 86 86
N marker 87 87
4 Index 2 00 00
5 Data 1 (Low Byte) 00 J Table 15
6 Data 2 (Low Byte) 00 J Table 15
7 – 8 Data 3 – 4 00 00
1) Possible causes J page 91
2) There are 16 M markers and 16 N markers. The markers are
addressed by Type and Index:
Use Type to select the M or N marker.
Use Index to select the marker number.