Revision January 2009 8-1
Chapter 8 MODBUS Communications
8.1 Communication Hardware Interface
The ASDA-B series servo drive has two modes of communication: RS-232, and RS-485. All aspects of
control, operation and monitoring as well as programming of the controller can be achieved via
communication. However, only one communication mode can be used at a time. Users can select the
desired communication mode via SEL232/485 (pin6) of CN3 connector (Refer to Section 3.5.1).
Please refer to the following sections for connections and limitations.
RS-232
Configuration
Cable Connection
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