Siemens DP/AS-Interface Link 20E Manual page 144

Structure of the PROFIBUS DP Parameter Assignment and Configuration Frame
Configuration Frame
The structure of the configuration frame depends on whether you require I/O
operation with up to 31 AS-i slaves or with up to a maximum of 62 AS-i slaves in
the extended addressing mode.
Operation
I/O operation for up to p p
1) 1)
31 AS-i slaves 31 AS i l
I/O operation in the
extended addressing extended addressing
mode
1) The default configuration (response to a Get_Cfg frame prior to initialization by the DP master)
is the configuration with I/O operation for up to 31 AS-i slaves.
Structure of the Parameter Assignment Frame
The parameter assignment frame of the DP/AS-Interface Link 20E is 17 bytes
long. It consists of a 7 byte standard section complying with EN 50170 and a
further 10 byte long field with additional parameters for the DP/AS-Interface Link
20E.
Standard Section
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
144
Number of output
bytes on the DP
master
16
32
Station status, see /6/
Watchdog factor 1, see /6/
Watchdog factor 2, see /6/
Min. T
SDR
Vendor ID, high byte, see /6/
H
80
Vendor ID, low byte, see /6/
H
98
Group ID, see /6/
Number of input Configuration Frame
bytes on the DP
master
16
32 Byte 0
C0
, see /6/
Byte 0 : y
3F
H
Byte 1 Byte 2
1F 1F
H H H
DP/AS-Interface Link 20E
Release 11/2002
C79000-G8976-C138–04