Siemens SITRANS SL - Quality Byte Coding

Interfaces to automation systems
8.2 Modbus interface
SITRANS SL
138 Operating Instructions, 12/2010, A5E01132948-04
8.2.3 Quality byte coding
Overview quality byte coding
The Modbus quality byte has the same structure and meaning as the one used for
PROFIBUS.
Structure and meaning of quality byte:











EDG
XQFHUWDLQ
JRRG
JRRGFDVFDGHG
2.
ORZOLPLWHG
KLJKOLPLWHG
FRQVWDQW
06%
4XDOLW\ 6XEVWDWXV /LPLWV
2XWSXWYDOXH
6XEVWDWXVLVDOZD\VVHWWR
,QSXWYDOXH
6XEVWDWXVLVQRWHYDOXDWHG
Figure 8-2 Quality byte coding
Note
Error codes and alarm list
See for explanation and action of error codes and the alarm list chapter Alarm, error, and
system messages (Page 163) .