Siemens PM-E F pm DC24V PROFIsafe Installation And Operating Manual page 190

Diagnostic Data of Fail-Safe Modules
A.2 Structure and Content of Diagnostic Data
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
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.
Figure A-1
190
– 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"
"
Bytes 0 and 1 of Diagnostic Data
).
ET 200S Distributed I/O System - Fail-Safe Modules
Installation and Operating Manual, 08/2008, A5E00103686-07