The PC which is used for data acquisition and processing is to be installed at the controlled facility inside of electrical cabinet. For the purpose of constant data transfer from the sensors to the server there is used an Internet or VPN data transfer channel.
This method allows to locate monitoring systems at facilities with adverse electrical safety or environmental conditions. Industrial PC power consumption is below 70 VA (and about 30 VA in normal operation mode). The PC has an integrated Watch Dog Timer, which restarts it in the case of any hang-up. Besides, Serial- / Media-converter and / or SMS-notification module is mounted inside of electrical cabinet. Sometimes a back-up power supply module is placed inside of the electrical cabinet. Industrial PC-s do not have any rotating parts (fans, HDD) – this considerably increases operational reliability of such systems.
Among the advantages of similar measuring network structures one should mention compatibility with various sensors. The sensors can be operated both within the scope of ZETLAB software (the measured values are transmitted to the server) and separately (the server receives “raw” data that require further processing). List of the sensors supported by ZETLAB Software is available on our web-site.