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Chapter 2
Application
Communication Settings
12
857-RAD DIP-Switches
The DIP switches allow you to configure communication settings that are
required by the application.
Figure 6 - DIP Switches
The switch position is ON when the switch is turned DOWNWARDS.
Table 1 - LE:1. Optical Fiber Communication Setup
Position
ON
(1)
OFF
(1) Default position.
Table 2 - LE:2. Optical Fiber Multi-slave Chain/Ring Topology Setup
Position
ON
(1)
OFF
(1) Default position.
These are the termination switches related only to the RS-485 interface. Both
switches must be ON or OFF at the same time. They are not used with fiber
optic connections.
The portion of the address switch selects the slave address for the 857-RAD
scanner. The slave address must match the setting in the base 857 relay.
Table 3 - Address Switch Block
Position
ON
OFF
Rockwell Automation Publication 857-UM002C-EN-P - February 2018
Function
Light is on when there is data being sent.
Light is off when there is no data being sent.
Function
857-RAD echoes the data received to the next device in the chain.
857-RAD does not echo to the next device in the chain.
Function
Selected single address bit is set to 1.
Selected single address bit is set to 0.
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