Diagnostics data of the signal modules
A.2 Structure and Content of Diagnostic Data
Fail-safe signal modules
304
Installation and Operating Manual, 01/2010, A5E00085586-10
Data records 0 and 1 of system data
Module diagnostics data have a maximum length of 29 bytes and are saved to data records
0 and 1 in system data:
●
Data record 0 contains 4 bytes of diagnostics data which describe the status of the fail-
safe signal module.
●
Data record 1 contains
–
4 bytes of diagnostics data of the fail-safe signal module, which are also included in
data record 0,
–
and up to 25 bytes of channel-specific diagnostics data
Description
The structure and content of the individual diagnostic data bytes are described below.
General rule: The corresponding bit is set to "1" if an error is detected.
Bytes 0 and 1
The diagram below shows the contents of bytes 0 and 1 in diagnostics data.
%\WH
%\WH
0RGXOHIDXOW
,QWHUQDOIDXOW
([WHUQDOIDXOW
$FWLYHFKDQQHOIDXOW
0LVVLQJH[WHUQDODX[LOLDU\VXSSO\
1RSDUDPHWHUV
,QFRUUHFWPRGXOHSDUDPHWHUV
0RGXOHFODVV)0
&KDQQHOLQIRUPDWLRQDYDLODEOH
Figure A-1
Diagnostics data bytes 0 and 1