Mapping in WinCC OA

Anmerkung: 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
Anmerkung: 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

unsolicitedDataUnavailable

Indicates if the RCB which is configured with the data set containing the respective address is active:

0
RCB is active
1
RCB is not active

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.