# Error Codes

### Groups

|   **No.** | **Group**                                  | **Abbr.**   | **Description**                                                                                                                                                                  |
|-----------|--------------------------------------------|-------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|         1 | Application Error                          | APP         | Error within application, running the Monitor<br/><br/>E.g. API function call with invalid parameters                                                                            |
|         2 | EtherCAT® network information file problem | ENI         | Monitor configuration XML file mismatches SubDevice configuration on bus<br/><br/>E.g. Bus Topology Scan cannot detect all SubDevices configured within network information file |
|         3 | Monitor parameter configuration            | CFG         | Monitor configuration parameters erroneous<br/><br/>E.g. mailbox command queue not large enough                                                                                  |
|         4 | Bus/SubDevice Error                        | SLV         | SubDevice error<br/><br/>E.g. Working Counter Error                                                                                                                              |
|         5 | Real-time Ethernet Driver                  | LLA         | Real-time Ethernet Driver error (network interface driver)<br/><br/>E.g. Intel Pro/1000 NIC could not be found                                                                   |
|         6 | Remote API                                 | RAS         | Remote API error<br/><br/>E.g. connection to Remote API server is not possible from client                                                                                       |
|         7 | Internal software error                    | ISW         | Monitor internal error<br/><br/>E.g. Monitor state machine in undefined state                                                                                                    |
|         8 | DC Monitor Sync                            | DCM         | DC SubDevice and host time synchronization                                                                                                                                       |
|         9 | Pass-Through-Server                        | PTS         | Initialization/De-Initialization errors                                                                                                                                          |
|        10 | System Setup                               | SYS         | Errors from Operating System or obviously due to System Setup                                                                                                                    |