YME Engineering Course

K. DEFINING HIS FUNCTION
♦ Long-Term Data Save - Disk Space Used
The disk space required for long-term data storage can be calculated from
the number of data points, data-sampling period and the number of days
for storage.
*1: The required minimum disk free space is a multiple of 10.8 MB. After
the division, the later part of the formula, trunk out the decimals then times
10.8.
Table: Formula for Calculating Disk Capacity
♦ Calculation of Disk Space Required
For an example, a datum with 1 minute sampling period and 256 samples
(2 blocks), when the datum is required to be archived for 30 days. The
first, (30+13)/7 = 6.14, after trunk out, it becomes 6. Thus, the space for
holding one block is 6x10.8 = 64.8 MB. For two blocks, the space required
is 64.8 x 2 =129.6 MB.
K.2.5 PRINT WAIT TIME
The messages are not printed out until they are piled up to fit one page for print.
With definition of the queuing time, the message may be sent to printer when the
defined queuing time elapsed. When Queuing time is specified as 0, the auto
print does not function. Auto print queuing time may be defined on the HIS
Message Print Wait Time definition tab of the HIS Constant Builder. Printer
queuing time: Define in minutes per HIS printer. The default is 5 minutes.
K.2.6 INSTRUMENT DIAGRAM OPERATION
♦ Operation Message Print Specification
The operation message output for the faceplate blocks may be specified.
YME Training Center
K-8
CS3KR3-ENG 1 ST Edition Jan 2002