Commissioning and Diagnostics
6-38
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
6.1.6.8 Channel -specific diagnosis
Definition
The channel-specific diagnosis gives information on channel errors of modules and
expands on the module diagnosis. The channel-specific diagnosis starts after the
module status (if the parameters are preset accordingly). The maximum length is
limited by the total maximum length of the slave diagnosis from 43/62 bytes in
DPV0 mode or 110/128 bytes in DPV1 mode. The channel-specific diagnosis does
not affect the module status.
A maximum of 9 (in DPV0 mode) or 15 (in DPV1 mode with IM151-1
HIGH FEATURE) channel-specific diagnostic messages are possible (see also
station status 3, bit 7).
Channel-specific diagnostics
The channel-specific diagnosis for the ET 200S with the IM151-1 BASIC is
structured as follows:
7
Bit no.
10
65 4 132
000000
B
up to 001100
B
: Module slot that sends the
channel-specific diagnosis.
0
7
Bit no.
65 4 132
0
Byte 17
000000
B
up to 000011
B
: Number of the channel that sends the
diagnosis
7
Bit no.
65 4 132
0
Byte 18
Errortype(seeTable6-12toTable6-23)
Channel
type:
Byte 16
001
B
:Bit
010
B
:2bits
011
B
:4bits
100
B
:Byte
101
B
:Word
110
B
:2words
01
B
: Input channel
10
B
: Output channel
11
B
: Input/output channel
Bytes 19
to 42
Next channel-specific diagnostic message
(assignment as for bytes 16 to 18)
Code for channel-specific diagnosis
Figure 6-25 Structure of the channel-specific diagnosis for the ET 200S with IM151-1
BASIC
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