Disturbance recorder file directory (ASDU 23) - Arc protection - Merging unit - Motor protection - Transformer protection - 2 winding - Feeder protection - Voltage regulation - Capacitor bank protection - Interconnection protection - Busbar differential protection (high impedance) - Generator protection - Power management/Load shedding - Back-up protection - IEC 60870-5-103 Communication Manual - 615 series Relion Protection and Control - 5.0 FP1 IEC - IEC

The disturbance recorder files IEC 60870-5-103 identification in the IED is a sequential 16-bit number starting from 1 at IED reset and incrementing for each new captured disturbance recorder file.

Note: IEC 60870-5-103 standard defines the disturbance recorder file identification to be the fault number (FAN), which is the same number that is generated by ASDU 2 Class 1 events during the same fault. The IED could theoretically capture several disturbance recorder files during the same fault, be triggered by a non-protection signal, triggered externally or triggered periodically. That is why the disturbance recorder file does not correspond to any particular fault detected by the IED.

The IEC 60870-5-103 directory information octet SOF bits TP, TEST and OTEV are not supported by the IED’s native disturbance recorder file system. These bits are therefore always set to 0. The TM bit is however supported.

The IEC 60870-5-103 disturbance recorder directory structure only allows up to eight disturbance recorder files to be available in the IED. If the IED’s native disturbance recorder file system contains more than eight disturbance recorder files, only the 8 latest files are accessible through IEC 60870-5-103 protocol.

The IEC 60870-5-103 disturbance recorder file directory can be requested by the client at any time by asking GI data. In addition, the disturbance recorder file directory should be sent spontaneously by the IED (through Class 1 report) to the client if the directory structure changes. A change in the directory structure normally means that a new disturbance recorder file has been captured and stored. It could also mean that a disturbance recorder file is deleted from the native disturbance recorder file system. Disturbance recorder files can be deleted by the IEC 60870-5-103 master. The recorder file is deleted by the IED after it has been sent to the IEC 60870-5-103 master according to the standard. Disturbance recorder files can also be deleted from PCM600, WHMI, LHMI or IEC 60870-5-103 client.

Note: The IED stores only one instance of disturbance records in memory for IEC 60870-5-103 protocol. Reading a complete recording deletes it from the common database. Thus, it is recommended to use only one protocol client to read disturbance records via IEC 60870-5-103 protocol.