Diagnostics
DeviceNet state
In many cases it is important to know whether the communication with the higher-level master is still OK. To this end, link the NodeState variable with your PLC program. A TwinCAT configuration is required for this purpose.
|
Error number | Description | Remedy |
|---|---|---|
0 | no error | none |
1 | Node is deactivated by the scanner, node is no longer in the masters scan-list. | Check the configuration |
2 | No data exchange between node and DeviceNet Master, node access timeout | Check the connection |
18 | Node is configured, ready for data exchange | none |
42 | Electronic Key Error: Vendor ID | Check identity of DeviceNet slave |
43 | Electronic Key Error: Device Type | Check identity of DeviceNet slave |
44 | Electronic Key Error: Product Code | Check identity of DeviceNet slave |
45 | Electronic Key Error: Revision | Check identity of DeviceNet slave |
46 | Error writing start-up attributes | Check identity of DeviceNet slave |
47 | Wrongproduced IO-Data length | Check identity of DeviceNet slave |
48 | Wrong consumed IO-Data length | Check identity of DeviceNet slave |
49 | Idle Mode (for Slave Devices): no valid IO-Data is exchanged via DeviceNet | Check whether the master is in idle mode |
Reading fieldbus state by ADS
You can read the fieldbus state via ADSREAD in the default configuration or in the TwinCAT configuration.
|
Parameter ADSREAD function block | Description |
|---|---|
NetID | local – empty string |
Port | 1 |
IndexGroup | 16#0006 |
IndexOffset | 16#000C_AE00 |
LEN | 1 |
State of the K-bus
An internal bus or Bus Terminal error is indicated in the K-bus state variable. A more precise fault description can be obtained via a function block (in preparation). To this end, link the K-bus state variable with your PLC program.
|
Error bit | Description | Error type |
|---|---|---|
0 | No error | No error |
Bit 0 | K-bus error | Error |
Bit 2 | K-Bus is re-triggered | Note |
Reading K-Bus state by ADS
You can read the fieldbus state via ADSREAD in the default configuration or in the TwinCAT configuration.
|
Parameter ADSREAD function block | Description |
|---|---|
NetID | local – empty string |
Port | 1 |
IndexGroup | 16#0006 |
IndexOffset | 16#000C_9000 |
LEN | 1 |