Logging Result Data for Automatically Collected Characteristics

The delay timer represents the wait time between logging each set of measurement data. The delay timer is enabled in the following conditions:

• When the Can Collect Automatic Data is set to Always.

• The variable characteristic or the QM specification that is linked to the characteristic is configured to automatically collect data, and the object is configured to Use Configuration.

The timer is disabled in all other conditions and the result data is not automatically logged into the MES database.

When the delay timer is enabled, the maximum number of individual readings for a sample will be equal to the maximum sample size configured for a characteristic or for a QM specification that overrides the characteristic. After the SRO reaches the maximum number of readings, the timer stops. Individual readings beyond the maximum sample size are not recorded in the MES database for that characteristic. This continues till a new sample is ready, regardless of the expiry of the delay timer in the SRO.

When the SRO detects that a sample for its entity is ready, finds all exposed characteristics within the object that match the characteristic list of the sample, and any of its characteristics are collected automatically, the SRO sets the <characteristic>.SampleID to the new sample's SampleID. The timer is reset, and the SRO logs the current readings against the new sample. If there are multiple characteristics in the sample that are collected automatically, the SRO records one characteristic of the object, per scan. The automatic data collected for a sample depends on the following criteria:

• If the maximum sample size configured for a characteristic is null, the SRO uses the normal sample size that is configured for a characteristic or a QM specification that overrides the characteristic.

• If both the maximum and normal sample sizes are null, then the number of measurements collected for a sample is equal to the number of result attributes exposed in the SRO. Then, the delay timer is disabled for the sample.

When the status of the object is set to OnScan, the SRO reads the number of result data (measurements) for a sample characteristic that is logged in the MES database. In this stage, the SRO determines if further measurements are to be logged for the current sample. This process of collecting result data is based on the number of results logged in the MES database and the characteristic configuration in the SRO.