The decoding of the telegram content in both Monitors can be done in the following ways:
Automatic decoding
No project reference available or the Group Address is just plain not used in the project
In these cases, no definite information is available about the Group Address value received (and the Group Objects assigned to it). A 'basic' decoding at the bit-length level can always be performed when this length information can be ascertained definitively from the bus telegram. According to KNX specifications, these 1 byte* bit-length values. Only in this case are the associated bit lengths displayed (e.g. 1 byte).
* Not 0..6 bit Group Object types, because in this case, 6 different Group Object types are mapped via a single data length (1 byte) in the bus telegram.
With project context
With project context, the precedence is:
- The Datapoint Type manually selected in the monitor for this telegram
- If the Group Address is known in the project:
- the Datapoint Type assigned to the Group Address
- the Datapoint Type assigned to any Group Object where this Group Object is the sending Group Object (if more than one such Group Object is present, there is no specific rule which one to take - one of them is picked randomly)
- the default Datapoint Type (according to master data) associated with the size of the associated Group Objects (if there are any)
Projects with existing Group Addresses (bit length is known due to assigned Group Objects, no Datapoint Types assigned)
Display of the KNX default values from the KNX master data. Here, a default Datapoint Type value is defined for every bit length.
Projects with existing Group Addresses (bit length is known due to assigned Group Objects, Datapoint Types assigned)
Display according to Datapoint Types and their priority.
Manual decoding
Manual (re-) coding can always be performed.
- Using the corresponding drop-down box.
- Decoding only applies to the selected telegram.*
- Decoding/value displayed only after leaving the field.
Multiple change is not supported, even if the next telegram or further telegrams have the same Group Address, this setting is not applied to them.