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6. Communication Protocol
6-1
6
Communication Protocol
6.1
Overview and Communication
Specifications
6.1.1
Overview
The XDL-L7 servo drive uses RS-422 serial communication. By connecting it to a PC or an
upper level controller, you can test drive it or change gain tuning and parameters.
You can also operate or handle communication of up to 32 axes by connecting multiple XDL-
L7 servo drives via a multi-drop method.
(1)
Serial Communication Access through RS422
(2)
Multi-Drop Access through RS422 (up to 32 machines)
NOTE 1)
When using a PC as the upper level controller, you have to use the RS232/RS485 communication
converter.
The CN3 and the CN4 connector pins of the servo drive are connected on a one-to-one basis internally,
making multi-drop wiring easy.