General Port Properties

Select the General tab in the Port Properties dialog box.

Configuration includes the following.

Feature

Description

Description

(Optional) description to help you identify the port.

Scan Rate

Base scan rate for the port.

Point scan rates will be multiples of the base rate.

The rate can be the number of:

Ticks (100 ticks = 1 second)

Seconds

Minutes

Hours

Retry Count

Number of scans to wait before attempting to reconnect to a device on this port after a communications error is detected.

 

Note: If communications cannot be established to a device on this port:

The device is considered to be down

A $DEVICE_DOWN alarm is generated.

Once a device is down, periodic attempts are made, after the Retry Count, to resume connection.

Enable

Check

Enables the port when the project starts.

 

Clear

The port will not be enabled when the project starts.

Points will not be available for devices on the port.

Enable stale data

Check

Keeps the point available in most circumstances that would have made it unavailable.

However, the point value will be stale, meaning it is the last known value and may or may not have changed in the device.

 

Clear

The point is not available.

More information

FloPro/FloNet port configuration.