With PCM600 the user can reconfigure the default IEC 60870-5-103 indication definitions.
- Add or remove existing indications
- Change function type/information number definition of indication
- Restore default function type/information number definition of indications
- Change GI assignment of indications
- Change ASDU type used by the indications
- Change the data coding value ( DPI) representation (four-pole objects only)
- Suppress falling edge Class 1 events (non-standard feature)
Function type 0 has a special meaning for indications. An indication with FunType = ”0” is changed into parameter DevFunType value for event reporting, general interrogation, and recorded data.
Changing the DPI value representation means that the DPI value only shows the standard defined ON and OFF values instead of four-pole values ON, OFF, INTERMEDIATE and FAULTY.
| True object position | IEC 60870-5-103 value |
|---|---|
| CLOSED | ON |
| OPEN | OFF |
| INTERMEDIATE | ON |
| FAULTY | ON |
Suppressing the falling edge, that is the OFF Class 1 events, is useful in some cases. For example, the Operate-OFF signals could often be omitted. This decreases the amount of Class 1 events and thus saves the bandwidth.
Note: Suppressing the OFF event is an non-standard feature. The standard requires that every position change of a Class 1 object is reported.
Note: The difference between a readable/writable object and a write-only object is not visible in the Communication Management tool of PCM600. An object is of write-only type if it is located on an IEC 61850 Oper.ctlVal data attribute. In this case, the GI enabling and other possible event configuration settings are meaningless.