I/O Area Assignment - Siemens SIMATIC Distributed I/O System DP/ASi Link Manual

Configuring the DP/ASi Link
Input and output The table below describes the location of ASi data in the input and output
area
area. A specific address is permanently assigned to every ASi slave:
Table 5-2
n + 10
n + 11
n + 12
n + 13
n + 14
n + 15
Subsequent
Should you wish to modify the ASi configuration, you must keep to the follo-
modification of
wing procedure:
ASi configuration
1. Add or remove ASi slaves.
2. Perform a new default start-up.
As soon as the DP/ASi link receives the parameterization message from the
DP master, ASi slaves that are added or removed after this point of time are
ignored. ASi slaves that have been removed are reported as having failed in
the diagnosis.
5-10
even-numbered ASi slaves: bits 4 to 7
odd-numbered ASi slaves: bits 0 to 3

I/O area assignment

Byte Bit 7 Bit 6 Bit 5
n
n + 1 Slave 2
n + 2 Slave 4
n + 3 Slave 6
n + 4 Slave 8
n + 5 Slave 10
n + 6 Slave 12
n + 7 Slave 14
n + 8 Slave 16
n + 9 Slave 18
Slave 20
Slave 22
Slave 24
Slave 26
Slave 28
Slave 30
Input and Output
Bit 4 Bit 3 Bit 2
Slave 1
Slave 3
Slave 5
Slave 7
Slave 9
Slave 11
Slave 13
Slave 15
Slave 17
Slave 19
Slave 21
Slave 23
Slave 25
Slave 27
Slave 29
Slave 31
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Bit 1 Bit 0