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Sub-frame editing
Sub-frame editing
For each sub-frame is possible to define:
Sub-frame Name
It is possible to customize the name of the sub-frame clicking and edit it directly.
The check-box near the name define if the sub-frame is present in the frame or not. You can exclude the sub-frame keeping it unchecked.
Sub-frame data
The data of sub frame can be modified in the field highlighted in the previous figure. The representation of the data depends on the sub-frame type (see below).
Sub-frame byte number
This field define the number of bytes of the sub-frame data.
Sub-frame type
In the filed highlighted in the previous figure is possible to define the way in which the data of the frame is represented.
The following type are supported:
- Hex (Hexadecimal)
- Dec (Decimal)
- Text (ASCII)
- Enum (Enumerative type) [Sub-frame enum type]
- Int16 LSB (16 bit signed less significant byte first)
- Int16 MSB (16 bit signed most significant byte first)
- UInt16 LSB (16 bit unsigned less significant byte first)
- UInt16 MSB (16 bit unsigned most significant byte first)
- Int32 LSB (32 bit signed less significant byte first)
- Int32 MSB (32 bit signed most significant byte first)
- UInt32 LSB (32 bit unsigned less significant byte first)
- UInt32 MSB (32 bit unsigned most significant byte first)
In the table below is shown an example of how the different type represent the same data:
| Type | Value | Hexadecimal data |
|---|---|---|
| Hex | 41 42 | 41 42 |
| Dec | 65 66 | 41 42 |
| Text | AB | 41 42 |
| Int16 (LSB) | 16961 | 42 41 |
| Int16 (MSB) | 16706 | 41 42 |
| UInt16 (LSB) | 16961 | 42 41 |
| UInt16 (MSB) | 16706 | 41 42 |
| Int32 (LSB) | 1111556096 | 42 41 00 00 |
| Int32 (MSB) | 16706 | 00 00 41 42 |
| UInt32 (LSB) | 1111556096 | 42 41 00 00 |
| UInt32 (MSB) | 16706 | 00 00 41 42 |
Sub-frame editing
With these buttons is possible to add new sub-frame, move selected sub-frame up (before) or down (after) in the sequence or remove it from the sequence.
Sub-frame variable
When the combo-box highlighted in the previous figure is checked the sub-frame is set to have variable data. This means that the value of the data of this sub-frame can be changed in real time. For instance if the protocol has a set register command that requires a value to be passed to the target device, it is possible to set variable the sub frame value. So the value actually sent to the target can be requested on-the-fly to the user, each time the command set register transmitted.
Different meaning is setting variable content to a receive frame. A variable content in case of receive frame means that the sub-frame value received can be any of the specified type.
