The linesPerAudit attribute specifies the number of lines each audit will be given in the audit trail list object. Each audit will take up this many lines even if the audit text does not fill them.
The auditTrailList object and the auditTrailDetail object elements contain this attribute.
FactoryTalk View property: The Lines per audit option on the Audit tab of the Audit Trail List Properties dialog box
linesPerAudit attribute syntax