According to the BACnet protocol documentation:

Indicates an execution delay in milliseconds for each value to be written in the List_Of_Object_Property_References when the Channel object's Present_Value is written. A value of zero indicates no delay. A non-zero execution delay value shall cause a delay, by that many milliseconds, in the writing to the corresponding referenced value. The resolution of Execution_Delay shall be a local matter. If present, the Execution_Delay property shall be writable. All delay periods shall "start" at the same time. So, a write of A, B(delay 100), C, D(delay 200) shall immediately write A and C, but delay the writing of B by 100 milliseconds and D by 200 milliseconds. Multiple delayed values shall execute their corresponding delays in parallel.

Property executionDelay of object channel can be read and written using a single IOTag.

Text Parameters

Numeric Parameters

Tag Value

A character string containing an XML with a value of type <SequenceOfUnsigned>.