Omron V440-F, Руководство пользователя

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4 Setup
4-72 V440-F C-Mount Code Reader User Manual
There is no limit on the number of Daisy Chains that can be created. All current, active Daisy Chains
will appear on the Daisy Chain page in the DDU. Click on any Daisy Chain to open its information
popup. This popup contains information about the Daisy Chain configuration, including Group
Information, Parent reader identity, and Children reader identities. The Daisy Chain information popup
also contains a Delete button, which deletes the entire Daisy Chain configuration – Parent and Children.
Important:
It is recommended that Daisy Chain readers of the same group should be positioned in
such a way that their fields of view do not overlap. Should their fields of view overlap, label data may be
output twice from the Parent device.
Parent:
The master device in the group. Responsible for establishing the group on the firmware side
and reporting the Daisy Chain to the DDU. There can be only one Parent in a Daisy Chain. The parent
is responsible for receiving
create
and
delete
commands from the DDU.
Children:
Any reader that is currently a part of a Daisy Chain that is not the Parent device is a Child
device. Child readers report data to the Parent reader.
A Valid Daisy Chain:
•
Must have at least two readers;
•
Must contain one Parent reader;
•
Must contain one or more Child readers (up to 8);
•
Must have a group name less than 25 characters in length;
•
Must have a valid group name [
a-z
,
A-Z
,
0-9
,
_
,
–
]
4-11-3 Daisy Chain Fundamentals