TopMessage - Data Security

Data security in measurement data acquisition is often overlooked. Data networks and PCs are not reliable. Networks and PCs can seriously malfunction resulting in the loss of vital data. Using Messages devices avoids this by storing data in the device itself. Therefore, when a network or PC malfunctions any lost data can still be retrieved from the Message device.

Internal data storage, data logger
A data logger is a measurement data acquisition device equipped with a non-volatile storage capacity. Data stored in a data logger can not be lost. The TopMessage storage capability utilizes ring storage meaning that always up to date measurement data is stored. This makes it suitable for specialist applications, e.g. as black box recorders for industrial use. Uninterrupted data acquisition is guaranteed.

Storage capacity
The basic version has a storage capacity of 500 KB. (i.e. 100,000 measurement values with time/date stamp). Capacity can be extended to 1GB (up to 192 million measurement values)

Data transmission to a PC
This can take place with the TopMessage device functioning online or offline. In offline mode, data is temporarily stored in the device and then transmitted, for example, once a day to the PC. Data can be made available for analysis on any number of PCs. In online mode, data is saved to the PC and not in the device. This method of data storage can also be performed according to time intervals. A combination of both modes is also possible. Data can be saved in parallel - both in the device and on a PC.

Time stamping
The TopMessage device saves measurement data with a time/date stamp. Times can be recorded to millisecond level.

Partitioning
Data storage can be partitioned into several independent units. This means uninterrupted data storage for quality assurance and the storing of events with pre and post history.

"Devistore" - adaptive storage procedure
"Devistore" is a procedure developed by Delphin enabling highly dense levels of data compression. Storage density is automatically determined by the frequency of changes in measurement values. Slow changes in a channel's measurement values means that less storage capacity is required. However, higher density storage is required for frequently changing measurement values.