Maxpro Network tab

This view configures an Maxpro Network, which is primarily used for reader devices.

Figure 213. Maxpro Network tab

You access this tab from the main menu by clicking Controller Setup > Remote Devices > Remote Drivers followed by double-clicking the Maxpro Network row in the table.

Properties

In addition to the common Status, Enabled, Fault Cause and Health properties, this tab includes these properties.

Property	Value	Description
Alarm Source Info	additional properties	Links to a set of properties for configuring and routing alarms. These properties are documented in the Alarm Setup topic of the PDF and in the help system (search for Alarm Source Info).
Monitor	additional properties	Configures ping properties. Refer to Monitor properties.
Tuning Policies	additional properties	Configures network rules for evaluating both write requests to writable proxy points as well as the acceptable freshness of read requests. For more information, refer to the Niagara Drivers Guide.
Fox Video Stream Preferred	`true` or `false` (default)	For a network component, selects (`true`) or declines (`false`) the use of Fox streaming. For a child component (DVR, NVR or camera), selects or declines the use of Fox streaming at the child component level. `Inherit` sets this property to the value set for its parent component (the DVR, NVR or network component). `Yes` sends the video stream from the video camera to the station (controller) and then forwards it to the Workbench interface through the standard Fox/Foxs connection. This overcomes fire wall issues in the event that the video surveillance system is not exposed to the outside world on its network. NOTE: This option assumes that the controller is exposed - otherwise you could not even connect to the station. `No` sends the video stream directly from the video camera to the interface. Using this setting allows you to set the `Preferred Resolution` and `Frame Rate` to `High` without impacting CPU usage. In essence, this removes the station from the equation. In all cases, the client-side computer expends some of its CPU utilization to render the video on the screen.

Monitor properties

Property	Value	Description
Ping Enabled	`true` (default) or `false`	Turns the monitor ping on and off. `true` each network device receives a ping, as needed. `false` no network device receives a ping. Device status remains as recorded the last time this property was `true`. Recommendation: leave `Ping Enabled` as `true` in almost all cases.
Ping Frequency	`hours:minutes:seconds`	Specifies the interval between periodic pings of all devices. Typical default value is every 5 minutes (05m 00s), you can adjust differently if needed.
Alarm on Failure	`true` (default) or `false`	Controls the recording of ping failure alarms. `true` records an alarm in the station’s AlarmHistory for each ping-detected device event (down or subsequent up). `false` ignores device down and up events.
Startup Alarm Delay	`hours:minutes:seconds`	Specifies how long a station waits at startup before generating a device down or up alarm. Applies only if the Monitor’s `Alarm On Failure` property is `true`.

Tuning Policy

During polling, the system uses the network driver’s tuning policy to evaluate both write requests and the acceptability (freshness) of read requests.

Property	Value	Description
Min Write Time	hours minutes seconds, zero (default) to infinity	Specifies the minimum amount of time allowed between writes to writable proxy points, especially ones that have one or more linked inputs. This provides a way to throttle rapidly changing values so that only the last value is written. The default value (0) disables this rule causing all value changes to attempt to write.
Max Write Time	hours minutes seconds, zero (default) to infinity	Specifies the maximum amount of time to wait before rewriting the value, in case nothing else has triggered a write, to writable proxy points. Any write action resets this timer. The default (0) disables this rule resulting in no timed rewrites.
Stale Time	hours minutes seconds; defaults to 0 (zero)	Defines the period of time without a successful read (indicated by a read status of {ok}) after which a point’s value is considered to be too old to be meaningful (stale). A non-zero value causes the point to become stale (status stale) if the configured time elapses without a successful read, indicated by Read Status {ok}. The default value (zero) disables the stale timer causing points to become stale immediately when unsubscribed.