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AVEVA™ Manufacturing Execution System 2023 R2

Always Collect Automatic Data

  • Last UpdatedNov 04, 2024
  • 3 minute read

When a characteristic is configured to Always Collect Automatic Data, the delay time configured in the SRO for that characteristic is considered the wait time between logging each set of measurement data for that characteristic, regardless of whether or not a specification is configured to collect automatic data.

When a sample is set to Ready, the SRO collects result data and MES result attributes data that are available, and logs them in the MES database.

The examples below explain how the result data from the SRO are captured and logged in the MES database. The delay time in the SRO for the characteristic ‘Length’ is configured to wait for 45 seconds between each set of measurements. The SRO is configured to take 3 readings at a time with a maximum sample size of 8 configured in the MES database, and the characteristic is linked to different specs in the MES database having different time intervals.

In the table below, some specifications have automatic data collection set to True. These specifications have delay timer configured for the characteristic, but they are ignored by the SRO.

Specification Name

Characteristic

Automated Collection

Time Interval

Time Interval Unit

SpecP

Length

No

SpecQ

Length

Yes

30

0 (Seconds)

SpecR

Length

Yes

1

1 (Minutes)

A value for ValueNo. indicates the value number recorded in the MES database and ValueNumber<N> indicates the SRO attribute from where the value is read.

Scan
Time

Characteris-tic

Sample ID

Spec

Timer Enabled

Time Elapsed (in sec)

Log Data

Comments

03:00:00

Length

100

SpecP

Yes

0

Yes

Timer does not elapse, but the individual reading is logged. Log Result and Result Attributes Data for sample ID: 100 for the following result attributes below:

ValueNo: 1 (ValueNumber01)

ValueNo: 2 (ValueNumber02)

ValueNo: 3 (ValueNumber03)

03:00:30

Length

100

SpecP

Yes

30

No

Timer does not elapse.

03:00:45

Length

100

SpecP

Yes

45

Yes

Log Result and Result Attributes Data for sample ID: 100.

ValueNo: 4 (ValueNumber01)

ValueNo: 5 (ValueNumber02)

ValueNo: 6 (ValueNumber03)

03:01:25

Length

100

SpecP

Yes

40

No

Timer does not elapse.

03:01:30

Length

100

SpecP

Yes

45

Yes

Log Result and Result Attributes Data for sample ID: 100.

ValueNo: 7 (ValueNumber01)

ValueNo: 8 (ValueNumber02)

03:01:50

Length

100

SpecP

Yes

20

No

Time stops.

03:02:15

Length

100

SpecP

Yes

45

No

Timer stops, because the maximum number of individual readings for the sample is already taken. No reading is logged.

03:02:20

Length

100

SpecP

Yes

5

No

Timer stops.

03:02:45

Length

110

SpecP

Yes

0

Yes

Timer does not elapse, but a new ready sample ID, which has a spec that is same as the current spec, is received. Log Result and Result Attributes Data for sample ID: 110.

ValueNo: 1 (ValueNumber01)

ValueNo: 2 (ValueNumber02)

ValueNo: 3 (ValueNumber03)

03:02:55

Length

110

SpecP

Yes

10

No

Timer does not elapse.

03:03:10

Length

120

SpecQ

Yes

0

Yes

Timer does not elapse, but a new sample ID, having a spec different from the current spec, is received. Log Result and Result Attributes Data for sample ID: 120.

Since a new sample (120) is received, no more measurements are recorded for previous sample ID: 110.

ValueNo: 1 (ValueNumber01)

ValueNo: 2 (ValueNumber02)

ValueNo: 3 (ValueNumber03)

03:03:50

Length

120

SpecQ

Yes

40

No

Timer does not elapse.

03:03:55

Length

120

SpecQ

Yes

45

Yes

Log Result and Result Attributes Data for sample ID: 120.

ValueNo: 4 (ValueNumber01)

ValueNo: 5 (ValueNumber02)

ValueNo: 6 (ValueNumber03)

03:04:40

Length

120

SpecQ

Yes

45

Yes

Log Result and Result Attributes Data for sample ID: 120.

ValueNo: 7 (ValueNumber01)

ValueNo: 8 (ValueNumber02)

03:05:25

Length

120

SpecQ

Yes

45

No

Timer stops, because the maximum number of individual readings for the sample is already taken. No reading is logged.

03:06:10

Length

120

SpecQ

Yes

45

No

Timer stops, because the maximum number of individual readings for the sample is already taken. No reading is logged.

03:06:10

Length

130

SpecR

Yes

0

Yes

Timer does not elapse, but a new sample ID, having a spec different from the current spec, is received. Log Result and Result Attributes Data for sample ID: 130.

ValueNo: 1 (ValueNumber01)

ValueNo: 2 (ValueNumber02)

ValueNo: 3 (ValueNumber03)

03:06:20

Length

130

SpecR

Yes

10

No

Timer does not elapse.

03:06:30

Length

140

SpecP

Yes

0

Yes

Timer does not elapse, but a new sample ID, having a spec different from the current spec, is received. Log Result and Result Attributes Data for sample ID: 140 .

ValueNo: 1 (ValueNumber01)

ValueNo: 2 (ValueNumber02)

ValueNo: 3 (ValueNumber03)

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