Eaton EASY222-DN, User Manual

Page: 171 / 284

Read/write image data
167
09/10 MN05013007Z-EN
Local analog output: QA1
The commands provided can be used to access the local
analog output of the easy800 or MFD basic unit. When
writing to the analog output (only possible from easy800,
device version 04) the value will only be output if the respec-
tive device is in RUN mode and if the respective image is not
written by the actual program,
a
section “Read/write
image data”on page 154.
Example:
The analog output should output a value of approx. 5 V.
500 = 01F4
hex
Byte 4 – Data 1 (LowByte) : F4
hex
Byte 5 – Data 2 (HighByte): 01
hex
Byte Meaning Value (hex), sent by
Master Slave Master Slave
Attribute ID
Read 91 –
Write
1)
B1 –
0 Response
Read successful – C2
Write successful – C1
Command rejected – C0
0 1 Len 02 02
1 2 Part no. 05 05
2 3 Index 00 00
3 – 4 4 – 5 Data 1 – 2
Read operation 00 a
example
month Write opera-
tion a
example
00
5 – 6 6 – 7 Data 3 – 4 00 00
1) Writing is only possible from easy800, version 04 a section “Read/write
date and time” on page 148.