Honeywell VRX180 How data is stored, Disk Status, Initializing a disk using a new storage setup

Online Operation Using Menus

How data is stored

To provide continuity of storage when the disk is removed, the data storage feature buffers data internally for a period of time based on the storage rate and amount of storage data. Since storage files and Setpoint program files may not be stored on the same disk, you can swap the storage disk with a configuration disk for up to the buffered data time period while loading Setpoint programs without losing storage data. When the storage disk is re-installed, or when another disk is initialized using the current schedules, the buffered data will be transferred to the disk.

Initializing a disk

Initialization creates separate areas on the disk for each type of data to be stored. Data types that can be stored are up to 3 Trends, Alarms, Events, Diagnostics, and Unit Data. You can initialize a disk using the current storage schedule or using a new storage schedule.

When data storage is active, the instrument determines the status of the disk. Status can be one of the following possibilities.

	Table 7-3 Disk Status
Disk status	Result
The “current” disk was inserted	The instrument will resume storage to this disk automatically.
back into the drive.
Some other disk was inserted.	In this case, a DISK NOT CURRENT message is displayed and data is
That is, disk is blank, contains	stored in a buffer, not on the disk.
old data files or contains
configuration files.

Initializing a disk using the same storage setup

To continue storing the same data storage schedule on this disk, select the online DATA STORAGE SETUP menu, select INITIALIZE DISK, then select USE CURRENT SCHEDULES. The instrument will display a prompt asking for a yes or no response to initialize the disk. Initializing will destroy all existing information on the disk. To shorten the initialization time, the disk should be pre-initialized on a PC. With this prompt you can remove a disk inserted by mistake, or deliberately re-use an old disk containing useless information. If you answer YES, the current schedule will be established on the new disk, buffered data will be stored to the disk, and if any storage files are in batch mode, the batch counter will be reset to zero(0).

Initializing a disk using a new storage setup

If you change any part of data storage schedule and you want the changed (new) schedule’s data to be stored, select the online DATA STORAGE SETUP menu, select INITIALIZE DISK, then select USE NEW SCHEDULES. To shorten the initialization time, the disk should be pre-initialized on a PC. All data that was buffered since the previous disk was removed is lost. If you change the schedule but initialize using the current schedule, the changed (new) schedule is not stored.

Video Recorder – User Manual 223