Applies To:
  • CitectSCADA 1.00, 1.01, 1.10, 1.11, 1.20, 2.00, 2.01
Summary:
Problem: Citect is printing each of the alarms on a new page, what is wrong with my configuration? 

Solution:
The Windows print manager has been designed for page-based printers, for example, laser printers and shared network printers. The print manager does not print anything on the printer until the entire page is complete. It then prints the page. This is the preferred printing method (when printers are shared on a network) because it prevents conflict of data when different operators use the print facility.

However this is not the preferred method when you are logging alarms. If you send alarm logging to this type of printer, Citect flushes the data to the printer when the current page is full, or when the [DEVICE] FlushTime (parameter) time has expired (the default is 10 seconds). If, for example, you have one alarm occurring each minute, each alarm is printed on a new page.

You can bypass the Windows print manager by writing the output to a file. Set the device type to ASCII_DEV (ASCII File) and specify the file name as LPT1.DOS, LPT2.DOS or LPT3.DOS. When you log to this device, the data is printed immediately on the printer with no extra form feeds.

For correct logging operation, you should reserve one printer to be your logging printer. Use a local printer, not the network printer. You can then send any other non logging printouts (for example reports) to a shared network or local printer. 
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