Dp Diagnostic Information - Bosch RM2-DP12 Description

8

DP Diagnostic Information

Byte Bit 7 Bit 6
no.
0 1
6
7 x7 x6
x15 x14
8
9 x23 x22
x31 x30
10
11 x39 x38
x47 x46
12
1070 072 449-102 (01.12) GB
The RM2-DP12 module supports standard diagnostic information and the
extended diagnosis possibilities of the PROFIBUS-DP. Among the
extended diagnostic information, the RM2-DP12 supports the "identifier-
related diagnosis", i.e. that for each I/O module 1 bit is reserved in the
diagnostic buffer, which can indicate if the I/O module is under diagnosis
or not. The 'device- or channel-related diagnosis' provided in the
PROFIBUS standard is not supported by the RM2-DP12.
In case of a diagnosis, the diagnostic information will be made available
to the DP master module (master class 1) or to the programming device
(master class 2, e.g. for display on the DP monitor) via the PROFIBUS-
DP. In addition, status '1' will be displayed on the 7 segment display as a
group message for 'diagnosis is pending'.
Diagnostic information overview:
[Byte]
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7-12]
Coding of the identifier-related diagnosis:
Bit 5 Bit 4 Bit 3
0 0 0
x5 x4 x3
x13 x12 x11
x21 x20 x19
x29 x28 x27
x37 x36 x35
x45 x44 x43
Identifier-related diagnosis:
A set bit means that in this I/O range a diagnosis is pending.
DP Diagnostic Information
Function
Station_Status_1
Station_Status_2
Station_Status_3
Master_Add
Ident_High
Ident_Low
Header for external diagnosis
6 bytes external diagnosis
Bit 2 Bit 1 Bit 0
1 1 1
x2 x1 x0
x10 x9 x8
x18 x17 x16
x26 x25 x24
x34 x33 x32
x42 x41 x40
Significance
Header byte
Module no.: 0-7
Module no.: 8-15
Module no.: 16-23
Module no.: 24-31
Module no.: 32-39
Module no.: 40-47
8-1