Rockwell Automation FactoryTalk Historian SE 3.0 UniInt Interface User Guide User Manual

Page 18

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Interface Startup Parameters

12

Parameter

Description

/SVCEventsTO=#

Optional

Default = 500 msec

The

/SvcEventsTO=x

controls the Service Events

TimeOut. The x is the timeout period specified in milliseconds.
Events are serviced (retrieved from the evmexceptions queue
on the Historian Server) for 500 milliseconds or until there are
no more events in the queue. After either of those events,
UniInt will perform the other tasks it is responsible for such as
scanning for input data and checking for Historian point
database changes. If the interface is servicing a lot of events,
the time may not be sufficient and can be adjusted with the

SvcEventsTO=x

command-line parameter. The minimum

value for x is 0. If the Service Events TimeOut parameter is
set to 0, UniInt will service 36 events at a time and then
continue to perform its other tasks. The maximum value for x
is 3000 (3 seconds).

/sio

Optional

Default = send initial outputs

The

/sio

parameter stands for “suppress initial outputs.” The

parameter applies only to interfaces that support outputs. If
the

/sio

parameter is not specified, the interface will behave

in the following manner.

When the interface is started, the interface determines the
current Snapshot value of each output tag. Next, the interface
writes this value to each output tag. In addition, whenever an
individual output tag is edited while the interface is running,
the interface 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 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.

/sn

Optional

Default = send exceptions

When this parameter is specified on the command-line, all
exception reporting is disabled. Unless the interface-specific
documentation says otherwise, this parameter should not be
used during normal interface operation.

/startup_delay

or

/startup_delay=delay

Optional

Default = no delay

Default if parameter is
specified with no value = 30
seconds

After UniInt prints out the “Starting Interface.” startup
message, UniInt will wait

delay

seconds before proceeding.

If the

/startup_delay

parameter is specified without

specifying a delay time, then the default delay is 30 seconds.

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