GE VersaPoint IC220PB001, Руководство пользователя

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8-4 VersaPoint™ I/O System Profibus-DP NIU User’s Manual – August 2005 GFK-1911B
8
Acyclic Communication in DP/V1 Mode
Whenever data is accessed, a distinction must be made between accessing data
from modules in the local bus and accessing NIU data. The table below lists the
Index Numbers of different types of module data and NIU data. As the table
shows, the NIU is considered to be in slot 0 and modules can be in slots 1 to 63.
Data Type Index Number
(decimal)
Module NIU Slot
Module parameters 2
Control byte (byte 4
of the NIU) 3 0
Local bus stop
acknowledgment 4 0
I/O error
acknowledgment 4 0
Overview of PCP
modules and status 5 0
Deactivation of
modules 6 0
Activation status of
modules 7 0
Station ID 8 0
Module parameters
(power up) 9 1 to 63
Set active
configuration as
power up
configuration 10 0
Delete saved
configuration 11 0
PCP data with
Invoke ID 47 1 to 63
PCP data 48 1 to 63