The HMI can record the data from up to 64 analog and 64 digital channels. The is stored locally on the HMI and can be viewed on a PC for subsequent analysis.
The normal recording of measurement data runs cyclically (fixed interval) in the background. It is possible to define digital channels that trigger immediate recording of measurement data if their value changes.
In addition, a faster data recording process is possible, which only records the data if necessary (e.g. if an alarm is triggered).
Local backup
It is possible to configure which channels are recorded. For this purpose, up to 64 analog and 64 digital channels can be determined whose values are recorded.
The recording interval is configurable. To reduce the write accesses to the storage medium, the data is first buffered in the working memory. Only after a configurable number of measurement series has been collected are they saved together to the file.
Storage is performed in files. Each file can stored a configurable number of measurement series. If this number is exceeded, a new file is begun.
It is possible to configure how many measurement files are to be created. If the maximum number of files is reached, the oldest file is overwritten. For this purpose, the files are named with numbers (0 to the maximum number). If the maximum number is reached, the chronologically oldest available log files are overwritten again.
Sending to the se@vis Cloud
If an Internet connection is available, the measurement data can be transmitted at configurable intervals to the se@vis Cloud. For this purpose, a router must be installed between the Internet and the control system to separate the internal network from the Internet.
Live Monitoring SAACKE Cloud
If configured, the measured values can be transmitted directly via MQTT to the SAACKE Cloud. In this case, the log data can be transmitted at configurable interval directly to the SAACKE Cloud, where it can be monitored live.
Analysis of the data
The recorded data can be viewed and analyzed in a PC program (currently still: EGCS monitor). The program can read the data either from the se@vis Cloud or directly from the HMI. The data can also be imported from a USB stick.