Allen-Bradley 1734-ADNX, User Manual

Page: 87 / 136

Publication 1734-UM002C-EN-P - July 2003
1734-ADNX Quick Start B-7
17. Remove the 1734-ADNX from the scanlist for now by clicking
the double arrows.
18. Click OK . When prompted if you want to download changes to
the device, click Yes .
At this point you have a choice:
•
You could start another instance of RSNetWorx for DeviceNet
and configure the Subnet. You would then see the
1734-ADNX at node 0 on the Subnet and add the POINT I/O,
DSA, and photoswitch to its scanlist. You would then map the
data to the exact location you want it. For example, if
someone had already written ladder logic and needed the
photoswitch input at a particular address, you would map it
to that address.
•
If you have not written your ladder logic yet and you are not
particular about the mapping, you could use the auto start
feature of the 1734-ADNX to map all the devices
automatically from the primary network. After the mapping is
complete, look at the Subnet to verify that everything worked
as expected.
19. Verify that the subnetwork taps are electrically isolated and have
their own terminating resistors at each end (4 taps: ADNX-0,
DSA-20, RightSight-22, and Power with termination resistors at
each end).
IMPORTANT
The Subnet must always be properly terminated. In
this example there is a terminating resistor at each
end of the tap string.
Click the double
left arrow to
remove the
1734-ADNX from
the Scanlist. Then
verify that the
Scanlist is empty.
You will return
here later after
RSNetWorx for
DeviceNet knows
more about the
devices on the
Subnet.