Mapping in WinCC OA
Note: The mapping information in this chapter is given in Little Endian notation. Within the
WinCC OA (_original) panel the information is displayed in
Big Endian notation.
TimeQuality Byte
| Bits | Information |
|---|---|
| 1 |
LeapSecondsKnown |
| 2 |
ClockFailure |
| 3 |
ClockNotSynchronized |
| 4 - 8 |
TimeAccuracy |
Range
[iec61850] userByteTimeQuality = 0 - 4
0 - (default) indicates no mapping
QualityDetail Byte
| Bits | Information |
|---|---|
| 1 |
overflow |
| 2 |
outOfRange |
| 3 |
badReference |
| 4 |
oscillatory |
| 5 |
failure |
| 6 |
oldData |
| 7 |
inconsistent |
| 8 |
inaccurate |
Range
[iec61850] userByteQualityDetail = 0 - 4
0 - (default) indicates no mapping
QualityMode Byte
| Bits | Information | |
|---|---|---|
| 1,2 | Validity | Quality |
| 3 | Source | |
| 4 | Test | |
| 5 | operatorBlocked | |
| 6 | reduSourceDevice | Mode |
| 7 |
unsolicitedDataUnavailable |
|
| 8 | reserved |
Validity
- 00
- good
- 01
- invalid
- 10
- reserved
- 11
- questionable
Note: Status invalid and status questionable trigger the WinCC OA
invalid bit.
Source
- 0
- Indicates the process
reduSourceDevice
Identifies the source device in case of device redundancy:
- 0
- Primary device
- 1
- Secondary device
Range
[iec61850] userByteQualityMode = 0 - 4
0 - (default) indicates no mapping
CommandMode Byte
| Bits | Information |
|---|---|
| 1,2 | type of service |
| 3,4 | check condition |
| 5 | test |
| 6 | automatic |
| 7 | maintenance |
| 8 |
periphBlkd |
Type of Service
- 00
- (Direct) operate
- 01
- Select
- 10
- Cancel
- 11
- Select with value
Check Condition
- 00
- No check
- 01
- Synchrocheck
- 10
- Interlocking check
- 11
- Both
Originator Category
- Bit 6 - Automatic
- Distinguish between e.g. station-control and automatic-station.
- Bit 7 - Maintenance
- Shall be set in case of maintenance operation.
periphBlkd
Bit 8 periphBlkd shall indicate “no action” to the driver.
