IL PB BK DI8 DO4/EF-PAC
3-8
PHOENIX CONTACT
7725_en_01
Example 1:
Reading the connected local PCP devices and their status
(slot 0, index 5 on the bus coupler)
The data shows that there is one PCP device each on slots 3 and 4, and its connection
status is OK, see Section "Object dictionaries" on page B-1.
Example 2:
Writing the bus restart bit (slot 0, index 4, bit 0 on the bus coupler)
The data block is only important in the request. The response indicates that the command
has been received. As can be seen in Section "Object dictionaries" on page B-1, the local
bus is restarted with bit 0 (01
hex
) at index 4, slot 0.
Read request (master -> slave)
Data
Data structure
5E 00 05 20
DP/V1 Read / Slot / Index / Maximum Length
Read request (slave -> master)
Data
Data structure
5E 00 05 06 03 01 00 04 01 00
DP/V1 read/Slot/Index/Actual length/
6 bytes of object data
Write request (master -> slave)
Data
Data structure
5F 00 04 01 01
DP/V1 write/Slot/Index/Length/1 byte of data
Write response (slave -> master)
Data
Data structure
5F 00 04 01
DP/V1 write/Slot/Index/Length