Datalogic AV500, Руководство по продукции

Страница: 169 / 324

COMMUNICATIONS
PRODUCT REFERENCE GUIDE
149
Click to activate the “The Text Entry Tool” on page 84 and create a No Index String. Click
Submit to save your changes, or click Cancel to return to the previous window.
This parameter defines the string to be transmitted instead of the Protocol Index within the
output message when no Protocol Index string has been associated to the package.
Request Message
The Request Message is the message that the AV500 sends to the external component,
requesting the component to send the protocol message.
Delay Request Message
When unchecked, the request message gets sent at start of trigger. Select this check box and
the request message will be delayed by the Reference Edge and Distance to Trigger Line
specified here.
Reference Edge
Select Leading or Trailing from the drop ‐ down list. This is the edge of the package when the
external component will send the message to the AV500.
Distance to Trigger Line
Enter the distance from the receiving point of the Protocol Index to the trigger line in the field
provided.This option allows the AV500 to recognize a protocol index message even it occurs
upstream such as a message from a scale.


This parameter specifies the distance from the physical Trigger Line (i.e. Trigger Source) to the
expected receiving point of the Protocol Index, measured in mm or inches. It is used together
with the Minimum Distance Between Two Consecutive Objects (below) parameter to assign
the Protocol Index information to the correct package.
Distance to Trigger Line State
Select Upstream or Downstream. This parameter specifies if the distance from the physical
Trigger Line is required Upstream or Downstream (i.e. Trigger Source) To the expected receiving
point of the Protocol Index, measured in mm or inches. It is used together with the Minimum
Distance Between Two Consecutive Objects (below) parameter to assign the Protocol Index
information to the correct package. This option allows the AV500 to recognize a protocol index
message even it occurs upstream such as a message from a scale.
Min Distance Between Two Consecutive Objects
Enter the smallest possible distance between system packages in the field provided. This
specifies the minimum distance (in mm or inches) between two consecutive packages. It is
used to compensate for imprecision in the Distance from Protocol Index to Trigger Line
parameter by virtually lengthening the package. This parameter implies that if two consecutive
packs are placed on the conveyor at a distance less than the minimum, a Protocol Index
assignment error will occur.
Log Type
Select Disable, Standard, or Advanced from the drop ‐ down list. Advanced Logging is used
during calibration or troubleshooting to confirm that the protocol index message is solidly
found on the correct box.
3. When you have finished making changes, click Update to save or click Reset to
revert to the previously saved values.