HMI Device Communication (Devcom) Counters

HMI Device Communication (Devcom) Counters provide you with the capability to review the performance of any one communication device in a project or all of the communication devices in the system.

Accumulated totals since the project started

For

Counter

Counts the Number of:

A

Point Updates

Point updates that have occurred on one or all communication devices.

Indicators of current performance

N

Cache Count

Point caches on one or all communication devices. This number will change if new points that require additional caches are added to the communication device.

The number of caches is the minimum number of physical reads that can occur. Point caches enable the communication device to read several points at once. There can be several point caches on a communication device. The cache size is configurable based on the communication device. The number of caches on a device depends on the points that are configured to the device and how they can be cached, based on the size of their data.

When you start the communication device, it will print out the initial caches and their sizes.

N

Caches to Poll

Caches on one or all communication devices that have been scheduled to be read but have not been processed yet.

Example

A cache that is on the communication device is scheduled to be read one time per minute. It is put on a queue until, at least, the minute has elapsed. If the queue is backed up, it may take longer.

N

Points

Points currently configured on one or all communication devices.

N

Point Updates/sec

Point updates, which are messages being sent to the Point Manager, per second for one or all communication devices.

For

Other Counter

Provides the:

N

Scan Rate

Current base scan rate for the port, in ticks, for a communication device.

Example

If the communication device has 20 caches and a base scan rate of 15 caches per second; the configuration needs to be adjusted.

Expertise Code

N

Novice

A

Advanced

E

Expert

More information

CIMPLICITY counters.