IL PB BK DI8 DO4/EF-PAC
3-20
PHOENIX CONTACT
7725_en_01
Example 3:
Reading the Config Table on the connected IB IL AI4/EF (slot 3, index 0080)
In the read response, the user receives the 12 bytes of object 80
hex
on the IB IL AI4/EF as
described above. The first 5 object data bytes are transmitted in the start fragment. The
missing 7 bytes follow in the second fragment which is already the last. The status byte
indicates that communication was error-free.
Read request (master -> slave) - Start fragment
Data (4 words VC1)
Data structure
06 03 00 00 80 00 I 00 00
Read request (I/O)/Slot/Invoke ID/
Index high/Index low/Subindex/
2 bytes unused
Read response (slave -> master)
Data (4 words VC1)
Data structure
96 00 0C 03 01 03 00 03
Read response/Status/Length/
5 bytes of object data
Read request (master -> slave) - Start fragment acknowledgment
Data (4 words VC1)
Data structure
96 I 00 00 00 00 00 00 00
Start fragment acknowledgment/7 bytes unused
Read response (slave -> master)
Data (4 words VC1)
Data structure
C0 01 03 00 00 00 00 00
End fragment/7 bytes of object data
