Eaton HMi VU Series User Manual

HMi VU Series Instruction Leaflet
Pin Definition for
Communications
HMIVU06CUNB / HMIVU07CUNBE
COM1 Port (Supports Flow Control)
Contact
PIN
RS-232
1
2 RXD
3 TXD
4
5 GND
6
7 RTS
8 CTS
9
Note: Blank = No Connection.
COM2 and COM3 Port
MODE1 MODE2 MODE3
COM2 COM3 COM2 COM3 COM2 COM3
PIN
RS-232 RS-485 RS-485 RS-485 RS-232 RS-422
1 D+ TXD+
2 RXD RXD
3 TXD TXD
4 D+ D+ RXD+
5 GND GND GND
6 D- TXD-
7
8
9 D- D- RXD-
Note1: Blank = No Connection.
Note2: HMIVU06CUNB/HMIVU07CUNBE models
do not support RS-422 flow control function.
HMIVU08CUNBE / HMIVU10WCUNBE
COM1 Port (Supports Flow Control)
Contact
PIN
RS-232
1
2 RXD
3 TXD
4
5 GND
6
7 RTS
8 CTS
9
Note: Blank = No Connection.
COM2 Port (Supports Flow Control)
MODE1 MODE2 MODE3
PIN
RS-232 RS-422 RS-485
1 TXD+ D+
2 RXD
3 TXD
4 RXD+
5 GND GND GND
6 TXD- D-
7 RTS
8 CTS
9 RXD-
Note1: Blank = No Connection.
Note2: When COM2 port is used for RS-232 flow
control, i.e. RTS and CTS signals are used for
flow control, COM3 port will become disabled.
Note3: When COM2 port is used for RS-422 with flow
control, COM3 Port pins 1, 4, 6, and 9 are
used for the signals, RTS+, CTS+, RTS- and
CTS- as shown in brackets.
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Eaton HMi VU Series Specifications

General

Brand	Eaton
Model	HMi VU Series
Category	Control Unit
Language	English