Honeywell VRX180 Process and Diagnostic Data Integrity, Performing Configuration Storage, Lnc

Programming and Operating Concepts

EXAMPLES :

Example #1 : 4 Live Trends all having 1 Hour Screens + 1 Data Storage Trend at 5 Seconds + 1 Data Storage Trend at 10 Seconds + 1 Live Screen.

The result = ((1/12) * 4) + 1/5 + 1/10 + 1 = 1.6333 (BELOW THE LIMIT)

Example #2 : 1 Live Trends with 5 Minute Screen + 1 Data Storage Trend at 0.25 Seconds + 1 Live Screen.

The result = 1/1 + 1/0.25 + 1 = 6 (AT THE LIMIT)

Example #3 : 2 Live Trends with 5 Minute Screen + 1 Data Storage Trend at 0.25 Seconds + 1 Live Screen.

The result = (1/1 * 2) + 1/0.25 + 1 = 7 (ABOVE THE LIMIT)

Process and Diagnostic Data Integrity

The instrument is equipped with several features to ensure data integrity. The instrument will not store data to disk if its front door is open. A BEZEL OPEN message will appear on all displays and process and diagnostic data meant for disk storage will be kept in the instrument’s memory buffer. Data corruption and loss are, therefore, not issues if someone walks up to the instrument and simply removes the Data Storage disk. Note that when performing Data Storage, the instrument writes to the disk only once a minute. This ensures that the latest data is always on disk. In the event of a power failure, at most one minute of data would be lost.

Performing Configuration Storage

Configuration storage is performed through a Program mode MAIN MENU prompt LOAD/STORE CONFIG. Here, a file containing the instrument’s programming and configuration is created by executing a routine called STORE CONFIG TO DISK. The applicable file extensions for configuration files are

.LNC.

Note that an instrument configuration file may also be created and stored to disk using optionally purchased SCF Configuration Software. You do not need a live instrument to create a configuration file using SCF.

Once stored to disk, the instrument configuration file may be downloaded into other instruments that have an identical model number. This helps to greatly reduce the amount of time required to program and configure multiple units sharing the same application. Having the instrument configuration on disk can also drastically minimize down time in the event of an instrument failure. The file can be used to program and configure a replacement unit within seconds.

Performing Set Point Program Storage

Refer to Section 5 of the manual for a detailed explanation of how Set Point Program Storage is accomplished.

78 Video Recorder – User Manual