Rockwell Automation FactoryTalk Historian SE 4.0 Live Data Interface User Guide - Manual (Page 42)

Chapter 8 Startup Command File
42 Rockwell Automation Publication HSELD-UM024A-EN-E–September 2013
Parameter Description
/sio Default = send initial outputs.
The /sio parameter stands for suppress initial outputs. The parameter applies only to
interfaces, such as the FTLD, that support outputs. If the /sio parameter is not specified, the
FTLD Interface will behave in the following manner: when the FTLD Interface is started, it
determines the current Snapshot value of each output tag. Next, the FTLD interface writes
this value to each output tag. In addition, whenever an individual output tag is edited
while the FTLD Interface is running, it will write the current Snapshot value to the edited
output tag.
This behavior is suppressed if the /sio parameter is specified on the command line. That is,
outputs will not be written when the FTLD Interface starts or when an output tag is edited.
In other words, when the /sio parameter is specified, outputs will only be written when
they are explicitly triggered.
/perf=interval Default = 8 hours
When the percentage of scans that a UniInt-based interface performs on time drops below
95%, UniInt will write the performance summaries for each scan class into the PIPC.log file.
For example, if /perf=0.025, UniInt will write performance summaries every 90 seconds if
the percentage of on-time scans is below 95%. The minimum time between summaries is
60 seconds. Setting /perf=0 disables summaries.
If the /perf parameter is omitted, then by default, every 8 hours, UniInt checks whether
summaries are needed.
If the inputs for the interface are unsolicited, then performance summaries should be
disabled by setting /perf=0, because performance summaries are meaningless for
unsolicited input points.
/q Default = no queuing.
When the /q parameter is present, Snapshots and exceptions are queued before they are
sent to the PI Server node. The maximum queue size is close to 4000 bytes. The queue is
flushed between scans if it is not filled. For an interface collecting unsolicited data, the
queue is flushed four times a second if it is not filled.
/TSofPIorFT The /TSofPIorFT parameter specifies which time stamp will be used to determine when to
send data to the Historian server:
• /TSofPIorFT=0 means using server time stamp
• /TSofPIorFT=1 means using FTLD server time stamp
Notes: By default, there is no /TSofPIorFT parameter in the .bat file. In this case, the
Historian server time stamp will be used.
An unsolicited point will always use FTLD Server time stamps.
/MultiCom Use the /MultiCom parameter if you want the PI-UniInt executable to select the
Multithreaded Threading model (COINIT_MULTITHREADED) for the call to CoInitializeEx().
Otherwise, the PI-UniInt will use the Apartment Threaded model
(COINIT_APARTMENTTHREADED).