Status of the Connection
When the process data is read, the status of the connection (both the General Status and the Extended Status) are returned in the first four bytes. The following values are possible here (in accordance with the ControlNet specification V2.0, Section 4.4):
Requirements
General Status | Extended Status | Meaning |
|---|---|---|
0x00 |
| Connection established, everything OK |
0x01 | 0x0100 | Connection already established |
0x01 | 0x0103 | Transport Class and trigger combination is not supported |
0x01 | 0x0106 | Owner conflict (e.g. if an attempt is made to use a second connection to access the outputs of the first) |
0x01 | 0x0107 | Connection not present |
0x01 | 0x0108 | Invalid Connection type |
0x01 | 0x0109 | Incorrect Connection Size |
0x01 | 0x0110 | Device not ready |
0x01 | 0x0111 | RPI supervision is not supported |
0x01 | 0x0113 | Maximum number of connections has been reached |
0x01 | 0x0114 | Vendor ID or Product Code in the Electronic Key do not agree |
0x01 | 0x0115 | Product type in the Electronic Key is not consistent |
0x01 | 0x0116 | Major or minor revision in the Electronic Key is not consistent |
0x01 | 0x0117 | Invalid Connection Point |
0x01 | 0x0118 | Invalid configuration format |
0x01 | 0x0119 | No Control connection available |
0x01 | 0x011A | No further connection in the device's application |
0x01 | 0x0203 | Connection monitoring has activated, so connections can not be made |
0x01 | 0x0204 | Timeout during Unconnected Send |
0x01 | 0x0205 | Parameter error during Unconnected Send |
0x01 | 0x0206 | Data is too long for Unconnected Send |
0x01 | 0x0301 | No more memory available |
0x01 | 0x0302 | Network bandwidth not sufficient for this connection's data |
0x01 | 0x0303 | Screener no longer available |
0x01 | 0x0304 | Device can not send real time data |
0x01 | 0x0311 | Port in the Path Segment is not available |
0x01 | 0x0312 | Link address in the Path Segment is not available |
0x01 | 0x0315 | Incorrect segment type or segment value in the Path |
0x01 | 0x0316 | Path and Connection not consistent when closing the connection |
0x01 | 0x0317 | Segment not present, or Encoded Value in the Network Segment is invalid (usually disappears after TwinCAT is restarted) |
0x01 | 0x0318 | Link address that points to the device itself is invalid |
0x01 | 0x0319 | Second Resource in a redundant system is not available |
0x10 | 0x0206 | Occurs in a Consumer connection to Control-Logix if the network project was not yet developed with RS Networx |