Structure Of The Channel-Specific Diagnosis - Siemens SIMATIC ET 200M Manual

as of
Byte 16
Code for channel-specific diagnosis
Byte 17
Byte 18
Bytes 19
to 21
Max. byte 63 in the IM 153-1
and byte 95 in the IM 153-2
Figure 6-8

Structure of the channel-specific diagnosis

Distributed I/O Device ET 200M
EWA-4NEB780600602-06
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7 6 5 4 3 2 1 0 Bit no.
1 0
000001 to 001010
B
channel-specific diagnosis.
(Example: Slot 4 has ID no. 3;
Slot 5 has ID no. 4)
7 6 5 4 3 2 1
0
Bit no.
000000 to 111111 : Number of the channel or the channel group
B B
that delivers the diagnosis
Input/output:
01 : Input
B
10 : Output
B
11 : Input/output
B
7 6 5 4 3 2 1 0 Bit no.
Error type
In accordance with the PROFIBUS standard
(see Tables 6-12 on page 6-26
Channel type
and 6-13 on page 6-27)
001 : Bit
B
010 : 2 Bit
B
011 : 4 Bit
B
100 : Byte
B
101 : Word
B
110 : 2 words
B
Next channel-specific diagnostic message
(assignment as for bytes 16 to 18)
Commissioning and Diagnostics
: ID number of the module that delivers the
B
6-25