Read/write image data
For more information visit:
www.EatonElectrical.com
MN05013001E
103
Read local analog inputs IA1 to IA4
The analog inputs on the EZ800 and EZD basic units can be
read directly via PROFIBUS-DP. The 16-bit value is
transferred in Intel format (LowByte first).
Telegram structure
Byte
Meaning
Value (hex), sent by
Master
Slave
0
Toggle byte
J
page 94
1
Command: Read
91
–
Response:
Read successful
–
C2
Command
rejected
–
C0
2
Len
02
02
3
Type
02
02
4
Index
01 – 04
1
01 – 04
1
5
Data 1 (Low Byte)
00
See example
6
Data 2 (High Byte)
00
See example
7 – 8
Data 3 – 4
00
00
1) 01 = Analog input I7
02 = Analog input I8
03 = Analog input I11
04 = Analog input I12
Содержание PROFIBUS-DP EZ204-DP
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