The Signals in Message area at the bottom of the Messages Editor provides different ways to change the Signal Type:
- Click in the Signal Type column and make a pulldown list selection.
- Double click on blue signal bits to open the Edit Signal dialog (Figure 1).
- Click the
button to open the Edit Signal dialog (Figure 1).
The Edit Signal dialog customizes itself based upon the Signal Type selection. Table 1 briefly describes each Signal Type and gives a few examples. Click on a Signal Type name to see further details for that type.
Table 1: Signal Types
| Signal Type | Description | Examples |
|---|---|---|
| Analog | Continuous numbers. | Engine RPM, Coolant Temperature, Throttle Position, Vehicle Speed |
| Digital | Binary, boolean, on/off type information. | Park Brake Active, Cruise Control Active, Door Ajar |
| State Encoded | List of text descriptions which equate to specific values. | Transaxle Shifter State (PRNDL), Power Mode |
| Text | ASCII text information. | VIN, Message Center |
| DTC | Diagnostic trouble code. | Trouble codes stored in ECUs such as: "P0142 - 02 Sensor Circuit Malfunction" |
| GMLAN | GMLAN signal types cannot be created manually. They are automatically generated from GMLAN databases that contain USDT and UUDT diagnostic messages. | |
| ODI | ODI signals cannot be created manually. They are automatically generated from .fuclass files. |