IDEC High Performance Series - Manual (Page 579)

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2 System Configuration
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DM L
ink
Communica
ti
on
External Device Setup Manual
2 System Configuration
The system configuration for the DM Link communication is shown below.
2.1 DM Link 1:1 Communication
2.2 DM Link 1:N Communication
- When using an RS232C connection with DM Link 1:N communication, only one MICRO/I or Touch unit can be con-
nected.
- When constructing a system using RS422/485, design the circuit so that when the external device receiver input is not
connected, the receiver output is in the mark state.