Application

Name of an application supporting DDE server functions

Use default DDE Topic + Item

If this option is enabled, this Driver uses the values of Default Topic and Default Item options when an application Tag does not inform any data for the Device and Item parameters, respectively

Query DDE Server

Use this option to query all topics available on a DDE server

Default Topic

Defines a default topic to use if an application Tag does not inform any data for the Device parameter

Default Item

Defines a default item to use if an application Tag does not inform any data for the Item parameter

Keep last data received in cache

If this option is enabled, all values in the cache memory are read, but always preserving the last value before clearing the cache memory of this Driver. If this option is not enabled, all values in the cache memory are read, and a possible lack of data may occur when that memory is completely empty, changing the quality of a PLC Tag to Bad

Cache size

Defines the maximum amount of data stacked in the cache memory of this Driver. If this option is configured with a value of 0 (zero), the cache memory has no limits for stacking data

Discard these data list

Defines all data to discard by this Driver, considering uppercase and lowercase letters to identify data