User guide

Solo Hornet Installation Guide Installation

MAN-SOLHRNIG (Ver. 1.003)

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4.9.2. Differential RS-232 Communication (RS-422) – J2

Note for connecting the RS-232 communication cable:

• This is Differential RS-232 Communication based on RS-422. Connect the shield to the

ground of the Controller. Usually, this connection is soldered internally inside the

connector at the PC end. You can use the drain wire to facilitate connection.

Pin (J2) Signal Function

27 Differential RS422_Tx + Differential RS-232/RS-422 Transmit +

28 Differential RS422_Tx - Differential RS-233/RS-422 Transmit -

25 Differential RS422_Rx + Differential RS-232/RS-422 Receive +

26 Differential RS422_Rx - Differential RS-232/RS-422 Receive -

24 COMRET Common Return

Figure 23: Differential RS-232 Communication