Cannon Instrument CAV-2000 - Manual (Page 33)

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CANNON ® Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO ® Instruction & Operation Manual
Version 2g — May, 2009; CANNON ® Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
If additional instruments are online but are not appearing in the correct
instrument group, check network connections and make certain that each
instrument is turned on and functioning normally. Then click Main/Poll
for Instruments to refresh communication with online instruments.
Group configuration
If your laboratory had 3 CAV-2100 instruments with RS-485 connec-
tions, all could communicate with the computer via a single COM port,
provided that they were all assigned different instrument addresses. Each
instrument group provides its own Instrument View customized for that
instrument type. The number of instruments that can be assigned per
group varies per instrument type. The default is four instruments per
group, although the Cold-Cranking Simulator (CCS) design allows only
one instrument per group.
When a new type of instrument is found on a port, the VISCPRO soft-
ware automatically creates a group for that instrument. The maximum
number of instruments that can exist on that port is determined by the
nature of the instrument. A single COM port may be used for communi-
cation with multiple instrument groups as long as the total number of
instruments does not exceed the number set by the group that can contain
the least number of instruments.
Configuring the Machine Status window to correspond with physical instrument
placement
It is desirable to configure your CAV instruments so that the VISCPRO
software computer interface display for the instrument group (Machine
Status window) corresponds with the actual physical placement of the
multiple instruments in the laboratory.
Use the instrument keypad controls to assign each instrument in the
group a unique address using numbers 1-4 from left to right (MENU/#6
Service/#1 Instrument Address; see page 21 for details regarding
keypad operation).
NOTE Do not use “0” as an instrument address for this configuration option.
When configured per the above instructions, the instruments will always
be displayed in the same “sequence” even if a single instrument in the
series is not online.
Viewing test results
Data obtained from all instruments during sample testing is stored in the
central VISCPRO
® database. To view data, you must create an analysis
requesting the desired sample information.
The following analyses are shipped with the software:
Sample Data Table—displays test information of your choosing.