OMFINS Parameters

Note: Always seek the advice of Technical Support personnel for this product regarding undocumented features.

[OMFINS]Block

A value (bytes) used by the I/O Server to determine if two or more packets can be blocked into one data request before being sent to the I/O Device. For example, if you set the value to 10, and the I/O Server receives two simultaneous data requests - one for byte 3, and another for byte 8 - the two requests will be blocked into a single physical data request packet. This single request packet is then sent to the I/O Device, saving on bandwidth and processing.

Allowable Values 5 to 256

Default Value 64

[OMFINS]Delay

The period (in milliseconds) to wait between receiving a response and sending the next command.

Allowable Values 0 to 300 (milliseconds)

Default Value 0

[OMFINS]IgnoreNonFatalError

Determines whether Plant SCADA will stay online if the remote rack is powered off.

Allowable Values 0 (recoverable errors not ignored) or 1 (recoverable errors ignored)

Default Value 0

[OMFINS]MaxPending

The maximum number of pending commands that the driver holds ready for immediate execution.

Allowable Values 1 to 32

Default Value 2

[OMFINS]PollTime

The interrupt or polling service time (in milliseconds). Setting the polling time to 0 puts the driver in interrupt mode.

Allowable Values 0 to 300 (milliseconds)

Default Value 0

[OMFINS]Retry

The number of times to retry a command after a timeout.

Allowable Values 0 to 8

Default Value 1

[OMFINS]Source

Specify the FINS network address, node number and unit number for the Plant SCADA I/O server. This will be the source address of messages from Plant SCADA, and the destination address of responses from the PCs.

Format w/n/u where:

w is s the FINS network address (1-127)

n is the FINS node number (1-126)

u is the FINS unit number (0-15)

Default Value 1/1/0

[OMFINS]Timeout

Specifies how many milliseconds to wait for a response before displaying an error message.

Allowable Values 0 to 32000 (milliseconds)

Default Value 1000

[OMFINS]WatchTime

The frequency (in seconds) that the driver uses to check the communications link to the I/O Device.

Allowable Values 0 to 128 (seconds)

Default Value 30