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Figure 8-35. 100 Hz High-
Speed Option Menu Layout
NOTE:
Note that the complete weighing
system must be streamlined to
take full advantage of the high-
speed weighing capabilities of
the Jetpak™ unit.
100-HZ HIGH SPEED OPTION (OPTIONAL)
The Jetpak™ version of the IQ plus 800/810 features an update rate of 100
updates per second. This option can be added after purchase to modify an
existing unit, but it is best that it be initially ordered as a high-speed unit.
The necessary hardware—a dedicated, single-channel 100 Hz A/D con-
verter—should be installed at the factory. High-speed Jetpak™ units are
identified by a special label on the A/D converter, and the letter "X" in the
model number tag.
Software indicators also designate the unit as a high-speed version. Upon
startup, the unit will run through a lamp test, then display the word FAST
for two seconds. After setup has been completed and the unit is exiting the
SETUP mode, the word FAST will again flash onto the display momen-
tarily.
The Jetpak™ version of the IQ plus 800/810 is a dedicated single-channel,
high-speed indicator. As such, the high-speed A/D precludes the use of
multiple input channels. When setting up the unit, use the first level menu
SET ALG (Set Analog), then move down to the submenu CHANS. The only
selection available under the CHANS parameter is 1 FAST. Any other menu
selections involving multiple channel choices will be either disabled or
limited to single-channel choices. All other features of the standard IQ plus
800/810 system are compatible with the Jetpak™ option.
XXXXXXX
SET ALG
CHANS
1
MAXIMIZING OPERATING SPEED
• Operating more than two continuously-running setpoints requires
intensive work from the microprocessor and will generally slow the
actual update rate to less than 100 per second. Batch step setpoints,
however, do not affect the update rate and can run at 100 per second.
• Operations which depend heavily on serial communications will not
affect the A/D converter rate, but will slow down the capabilities of the
overall system. The practical limit for serial transmission is approxi-
mately only 50 readings per second, even though the A/D is updating at
100 per second. Continuous Streaming format, End-of-Line delays, and
extensive EDP serial port commands all act to slow down the overall
system performance. Slow baud rate selections will further reduce the
capabilities of the system. A special high-speed data streaming version is
available. However, several standard options such as setpoints are not
available when high-speed data streaming is used. Consult the factory for
specifications and limitations.
• Inappropriate settings, like filtering selections which require long settling
times, will also slow down the overall speed of the weighing system.
1 2
1 3
1 3 4
1 2 3 4
1 FAST
Optional features
8-31
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