Diagnosis
The process data objects "AO Inputs Channel 1" and "AO Inputs Channel 2" contain variables for the diagnosis of the analog outputs.
These process data objects are disabled in the factory settings.
Enable
You can enable the process data objects as follows:
- 1. Open the "Process Data" tab.
- 2. In the field "Sync Manager" select "Inputs".
- 3. In the field "PDO Assignment (0x1C13)" activate the checkboxes "0x1A05" and/or "0x1A06".
Index | Process data object |
|---|---|
0x1A05 | AO Inputs Channel 1 |
0x1A06 | AO Inputs Channel 2 |
Evaluation
The process data objects "AO Inputs Channel 1" and "AO Inputs Channel 2" each contain two status bits:
- "Load Impedance too Low" (EPP4304-1002)
"Load Impedance too High" (EPP4314-1002) - "Error"
"Error" always has the same value as "Load Impedance too Low/High". The following table shows the meaning of the values of the status bits.
Value | Meaning | |
|---|---|---|
EPP4304-1002 | EPP4314-1002 | |
0 | Normal operation | Normal operation |
1 | The analog output cannot drive the specified current. Possible causes:
| The analog output cannot maintain the voltage. Possible causes:
|