Owner's manual

8644/phoenix - 49
SYSTEM DESCRIPTION
Configuration of the data depending on the service:
For all data accesses, a distinction must be made between accesses to modules in the local bus and data
on the DPV1 field bus node according to the following table:
Access Service Data
Write objects (DPV1 - bus
node)
Request Object data
Response None
Read objects (DPV1 - bus
node)
Request None
Response Object data
Write objects (E/A module) Write Request (Write) Write-PCP / Index High / Index Low / Sub-
index / Length PCP-Data / x Bytes Object data
Write Response (Write) None
Read Request (Write) None
Read Response (Write) PCP acknowledgement
Read objects (E/A module) Write Request (Read) Read-PCP / Index High / Index Low / Sub-
index
Write Response (Read) None
Read Request (Read) None
Read Request (Read) PCP acknowledgement
Write objects with Invoke ID Write Request (Write) Invoke-ID / Write-PCP / reserved /reserved /
reserved / reserved / Index High / Index Low /
reserved / Sub-index / reserved / Length PCP-
Data / x Byte PCP-Object data
Write Response (Write) None
Write Request (Write) None
Read-Response (Write) Invoke-ID (mirrored) / Write-PCP / reserved /
reserved
Read objects with Invoke ID Write Request (Read)
Write Response (Read) None
Read Request (Read) None
Read Response (Read) Invoke-ID (mirrored) / Read-PCP / reserved /
reserved / reserved / Length PCP - Data / x
Byte PCP - Object data
Data type Access to
Local bus
module
Access to DPV1
bus node
Slot Index
Module parameter X 1... 63 2
Control byte (byte 4 of the DPV1 bus node) X 0 3
Local bus stop acknowledgement X 0 4
Peripheral fields acknowledgement X 0 4
Overview of PCP modules and status X 0 5
PCP data X 1 ... 63 48
Reserved 47