Diagnostics - Siemens 6DR55 Series Manual

5.3.3 Diagnostics acc. to PROFIBUS DP (DDLM_Slave_Diag)
Specifier

Diagnostics

Byte Bit Meaning for "1"
Byte 0 0 --
1 --
2 --
3 --
SIPART PS2 PA Manual
A5E00127926--05
To communicate diagnostic information standard mechanisms within
the PROFIBUS--DP can be called upon and an active report made to
the class 1 master. PROFIBUS--DP provides a protocol for this to
convey information that is of higher precedence than operating data to
the class 1 master.
The contents of the "Device Status" parameter from the physical block,
together with information whether a change of status has occurred
(event gained / event lost).
The diagnostics object comprises four bytes. For the positioner only the
first two bytes are relevant.
The positioner provides diagnostic data in the following form:
Input
(master view)
Initial address 0
1
2
3
4
5
6
7
8
9
10 Diagnostics (0)
11 Diagnostics (1)
12 Diagnostics (2)
13 Diagnostics (3)
1: raised event
2: cleared event
Cause
Functions/operation via PROFIBUS PA
Station_status_1
Station_status_2
Station_status_3 Standard DP --
diagnostics
Diag_Master_Add
Ident_Number
Ident_Number
Header
Status_Type Status coding
Slot_Number acc. to DP/V1
Specifier
Diagnostics object
of the physical block
Action
149