Front panel components, continued – Schneider Electric Processor Adapter User Manual
Page 83
Option Adapters
870 USE 101 10 V.2
83
Front Panel Components, Continued
Modbus Plus
Address
Switches
The two rotary switches on the Option Adapter are used to set a Modbus Plus node
address for the CPU module. The switches are shown in the following illustration.
Their usage is described in detail in
Modbus Plus Addresses on page 198.
The switches in this illustration are set to address 14.
Modbus Plus
Ports A and B
This Option Adapter has two Modbus Plus ports. Redundant cabling on the
Modbus Plus network offers increased protection against cable faults or excessive
noise bursts on either one of the two cable paths. When one of the channels
experiences communication problems, error-free messaging can continue to be
processed on the alternate path.