Installation guide

Introducing the Modbus Plus Network
890 USE 100 00
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1.5.3 DIO Drop Adapters
The DIO Drop Adapter mounts in a housing at a remote site,
communicating over the housing backplane to the site’s I/O modules to
service the site’s data requirements. The adapter includes a built-in
power supply that provides operating power for the I/O modules.
DIO Adapters are available for single-cable and dual-cable network
layouts. Contact your Modicon distributor for information about
models and part numbers.
Figure 9 shows the front view of a typical DIO Drop Adapter.
Specifications are provided in the Quantum Automation Series
Hardware Reference Guide.
Power/Ground
Terminal Strip
(Cover Open)
Modbus Plus
Connector
Channel A
Modbus Plus
Connector
Channel B
NOTE
DIO Drop Adapters are available for either
single-cable or dual-cable network layouts.
The dual-cable model is shown.
Modbus Plus
Address Switches
(on rear)
Figure 9 DIO Drop Adapter