EtherNet/IP connection state
| Status Field | Data Type | Values | Notes |
|---|---|---|---|
| Connection status variables | |||
| ConnectionState | WORD | 1 = connecting, 3 = connected, 4 = timed out, 0x0E = error | Matches CIP specification for ConnectionState, except for error (0xE) state |
| NetworkPath | OctetstringN[80] | bytearray | Usually this is the IP address of the target, though other connection paths are possible. |
| T2OInstance | UDINT |
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| O2TInstance | UDINT |
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| T2OConnectionID | DWORD |
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For debugging with Wireshark |
| O2TConnectionID | DWORD |
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For debugging with Wireshark |
| T2OIPAddress | OctetstringN[16] | bytearray | IP address of the target in the O->T direction |
| O2TIPAddress | OctetstringN[16] | bytearray | IP address of the target in the T->O direction (may be a multicast address) |
| Error status variables | |||
| LocalErrorCode | DINT | 0 = no local error. 2 = invalid network path/target IP address. 3 or 4 = target not responding. | Other local error codes are possible but require Yaskawa developer support to diagnose. |
| GeneralErrorStatus | BYTE | 0 = Success. Please refer to table below for any non zero error status. | CIP General Error Status reported by the target. Please refer to table shown below. |
| ExtendedErrorStatus | WORD | e.g. 0x315 = "incorrect connection point" (bad t2o/o2t instance ID) | CIP Extended Error Status reported by the target. Please contact Yaskawa Technical Support for further details to troubleshoot. |
| Statistics variables | |||
| NumSentPackets | UDINT |
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These statistics are reset on timeout. |
| NumReceivedPackets | UDINT |
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| MaxSendDelay | UDINT |
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| MaxReceiveDelay | UDINT |
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| NumSentBytes | UDINT |
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| NumReceivedBytes | UDINT |
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| NumLostPackets | UDINT |
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| NumSendErrors | UDINT |
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| NumTimeouts | UDINT |
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This does not increment until after a timed out connection is re-established |
| NumErrors | UDINT |
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| NumReceiveErrors | UDINT |
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General Error Status:
