Maximizing tips - Metasys - LIT-12011034 - General System Information - Metasys System - Release 11.0

COV reports account for the highest amount of traffic on the bus. For best performance, keep the COV rate at 500 COVs per minute or fewer for each network. To reduce the COV traffic:

• Set the COV increment to the largest value that still provides acceptable performance.
• Do not map more points to the NxE than are required.

For mapped analog points, where the values are changing frequently, consider the following to limit COV reports:

• Increase the COV increment on the point.

• Set the Use Cov Min Send Time flag to true, which causes the COVs to be sent on a timed basis. The time value is specified in the controller device object.

Subordinate devices on the FC bus are not supported. The SA bus only supports a specific set of subordinate devices.

Third-party devices can seriously degrade both hardware and software performance depending on their quality and configuration. Consider and configure third-party devices carefully according to the manufacturer’s specifications.

Once the system is configured, commissioned, and running, avoid adding extra traffic to the bus by performing unnecessary auto-discovery operations, downloads, or bus analysis.

Follow the wiring rules carefully. The tolerances of the MS/TP bus are tighter than other, slower protocols may be. Improper terminations may result in errors causing serious network degradation. See MS/TP Bus cable recommendations.

See Statistics attributes.