Replaces the alarm printer storing the alarms at the hard disk
Prilog runs on any PC, with no special requirements, except for a communication port and/or a network connection. Prilog can replace any printer type with different interfaces types. Prilog can fetch the alarms via the COM port or via the network TCP/IP printer. If the system is sending the messages via an parallel interface, a HW converter is used to convert the signal to serial type or IP network connection if the source is remote. Prilog Writer The Prilog writer is the logger part of Prilog that reads the sources and writes the information to the hard disk. The Prilog Writer will always run when the PC is running. The information is stored in a circular file, where the oldest lines is over written by the latest incoming lines, in order to not fill up the hard disk. The size of this file is determined when Prilog is installed, and the place for the file is reserved. 50 different channels pr PC
There is no absolute limit for how many different channels of alarm lines that can be received in one PC, as this is a matter of PC capacity. A modern PC would be able to handle up to 50 different Prilog channels simultaneously, if no other heavy programs are running. Remote printer connection Prilog have built in IP functionality, and may connect to any IP printer output in the network. This enables Prilog to collect printer sources from remote installations via the network. Prilog Storage Capacity If your alarm printer prints 1 line of 80 characters every second 24 hours a day, and your hard disk has 50GB capacity, Prilog can store all lines in a period of 20 Years. Prilog Reader The Reader is the user interface part of Prilog, and can be started and stopped without interruption of the logger part. The reader may connect to and read different Prilog channels locally on the same PC, or remote channels on another PC in the network. Signal analyses Based upon requirements from huge offshore plants, Prilog has got an analysing tool which is used to detect the most frequent alarms in the system. By different selection methods the user can search through each channel and list out the occurrences for different time periods, and analyse witch alarms causes most problems, and the time window for these alarms. Any time the operator may view the "10 on top" list with the ranging of the most annoying alarms at all times. E0-Maintenance support As one of the requirements for E0 maintenance is to on regularly bases to test different alarms for functionality, Prilog has been used for documentation of this tests. Some of the signals may also be checked out due to the fact that the alarm have been activated during the last maintenance period. The analysing tool is used to export the occurrence of a dedicated alarm within a set time period. E-Mail SMS support Prilog can be set up to watch for a special alarm to appear, and if detected send an e-mail or SMS to the specified receiver. Different receivers can be may be set up for different alarm tags, or events. The e mail may, if defined contain a number of events detected up to this event in order to allow the receiver to analyse the situation. Remote network access When a PC with a Prilog Reader is connected to the Writers PC via some kind of network connection, the Reader can connect to the Prilog Writer via the network connection. The user may from the remote location inspect the stored data with full Reader functionality. List Function
The List function enables the user to list out all occurrences of a certain signal, or a group of signals. The result may be saved to a file for further analyses or storage. Export Function Via the Export function the user can export any part or group of the stores signals to different file formats for storage or analyses. The export function may be executed with pre defined intervals or trigged by an incoming event. Search Function From the power full Search function, the user can search through the stored signals and inspect the occurrences of the actual signal. Each search setting may be saved for later use.
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