Rockwell Automation FactoryTalk Historian SE 4.0 Live Data Interface User Guide - Manual (Page 26)

Chapter 5 Point Configuration
26 Rockwell Automation Publication HSELD-UM024A-EN-E–September 2013
Advise tags and Polled tags use Location4 to specify the requested
update rate for the group.
Location4 is ignored for Output tags.
NOTE
Advise, Polled, and Output data collection methods are explained in
"Location3 (page 25)".
If Location5=1 and Location3=0, it will force an asynchronous read
from the data server. It should only be used for event-triggered
points due to performance concerns.
The InstrumentTag contains the ItemID of the tag. The format of
this field depends on the FactoryTalk Live Data server:
Type of the tag InstrumentTag syntax
Device tags /:name>:[]
HMI tags /::name>\
The field must match the point defined on the FactoryTalk Live
Data server, including punctuation, spaces, and case.
The InstrumentTag field allows a maximum of 1023 characters.
The FTLD interface gets the $Global scope from the /FTDirectory
parameter and / from the /FTContext parameter. For additional
information on these parameters, see "Command-line Parameters
(page 39)".
Advise and Polled Tags
Output Tags
Location5
InstrumentTag
Length