Interfaces to automation systems
8.2 Modbus interface
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:
Figure 8-2
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) .
138
Quality byte coding
Operating Instructions, 12/2010, A5E01132948-04
SITRANS SL