Station query / general query

The station query command, also called the general query, is initiated from the central station. The ID field of the command also contains the group (1 to 16 or general). The substation transfers the application objects associated with this group to the central station with cause of transmission <20> to <36>.

Station query / general query 1:

Time mark in the case of general queries

Application objects with time marks are transmitted without time mark in the case of a general query.

client.acqPara.arrGenro[0].tPollCycle := T#60s;
client.acqPara.arrGenro[0].eQOI := eIEC870_QOI_INROGEN;
client.acqPara.arrGenro[0].bEnable := TRUE;

The associated PLC example tutorial can be downloaded here.