Skip to content

Quality codes Modbus protocol

The following table shows the possible quality codes for devices that use the Modbus protocol:

Quality code (hex) Quality code (dec) Short description Long description
0x00000000 0 Good No error occurred
0x80050000 -2147155968 Communication error Modbus connection reset for connection
0x80310000 -2144272384 No communication Communication with the data source is
defined but not established and there
is no last known value available
0x803A0000 -2143682560 Not readable The access level does not allow
reading or subscribing to the node
0x80790000 -2139553792 No subscription There is no subscription available
for this session
0x80AB0000 -2136276992 Invalid argument One or more arguments are invalid
0x80330000 -2144141312 NodeIdInvalid Parser bad node syntax
0x809E0000 -2137128960 Data unavailable Expected data is unavailable for the
requested time range due to an unmounted
volume, an offline archive or tape, or
similar reason for temporary unavailability
0x809F0000 -2137063424 Entry exists The data or event was not successfully
updated because no matching entry exists
0x803C0000 -2143551488 Out of range The value was out of range
0x80270000 -2144927744 Session not activated The session cannot be used because
ActivateSession has not been called
0x808B0000 -2138374144 Device failure There has been a failure in the
device/data source that generates the
value that has affected the value
0x803D0000 -2143485952 Not supported The server cannot retrieve a bound for
the variable
0x80630000 -2140995584 Type definition invalid The type definition node ID does not
reference an appropriate type node
0x800D0000 -2146631680 Server not connected The operation could not complete because
the client is not connected to the server.
0x80730000 -2139947008 Write not supported The server does not support writing the
combination of value status and
timestamps provided
0x807D0000 -2139291648 Data source busy Previous read request of data source is
still in progress

Any questions left?

Ask the community

Except where otherwise noted, content on this site is licensed under the MindSphere Development License Agreement.

Last update: May 19, 2022