Diagnostic Data of Fail-Safe Modules
A.2 Structure and Content of Diagnostic Data
ET 200S Distributed I/O System - Fail-Safe Modules
190 Installation and Operating Manual, 08/2008, A5E00103686-07
Data Records 0 and 1 of the System Data
The diagnostic data of a module can be up to 40 bytes long and is located in data records 0
and 1 of the system data area:
● Data record 0 contains 4 bytes of diagnostic data that describe the state of the F-module.
● Data record 1 contains
– The 4 bytes of diagnostic data of the F-module that are also in data record 0 and
– Up to 36 bytes of channel-specific diagnostics data, depending on the F-module (see
"
Channel-Specific Diagnostics from Byte 8"
).
Description
The next section describes the content and structure of the individual diagnostic data bytes.
General rule: If a fault occurs, the corresponding bit is set to "1".
Bytes 0 and 1
The figure below shows the contents of bytes 0 and 1 in the diagnostic data.
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([WHUQDOHUURU
&KDQQHOHUURU
0RGXOHFODVV
%
IRU)PRGXOHV
&KDQQHOLQIRUPDWLRQH[LVWV
%\WH
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Figure A-1 Bytes 0 and 1 of Diagnostic Data
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