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Communication Options; Devicenet Network - AB Quality Allen-Bradley 2755-SN3 User Manual

Adaptascan bar code readers

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Communication Options

This section defines the communication options for the Reader.

DeviceNet Network

AdaptaScan Readers support both DeviceNet Master/Slave and
Peer-to-Peer protocols.
On a DeviceNet Master/Slave network, Readers and other DeviceNet
slave devices communicate with a DeviceNet Scanner (Master). Up
to 63 slave devices are allowed on a master/slave network.
On a DeviceNet peer-to-peer network, up to 32 Readers can be
connected together. These Readers can:
work in a coordinated mode to read multiple bar code symbols on
different sides of the same package.
combine data from several Readers to a single Reader that
communicates the data to a host.
pass input and output status information between Readers.
Reader
PLC-5 with 1771-SDN (DeviceNet Scanner)
AdaptaScan Bar Code Readers operate on a DeviceNet network at
the following baud rates (Kbps = Kilobits per Second):
Baud Rate
125 Kbps
250 Kbps
500 Kbps
Overview
Reader
Supports Maximum Cable Length of:
1640 feet (500 meters)
656 feet (200 meters)
328 feet (100 meters)
1–11
Other
DeviceNet Devices

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