3 Wiring
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3.2.3 Connection to External Device (DB9 Male)
The COM2 communication port is available in the DB9. The pin arrangement of DB9
male is described in the following table.
Pin No.
Signal
Pin Arrangement of DB9 Male
COM2[RS-232]
1
1 2 3 4 5
6 7 8 9
COM2 [RS232]
DB9 male
(Pin-type signal plate)
2 RXD (receiving)
3 TXD (sending)
4
5 GND (signal ground)
6
7
8
9
Communication cables and settings (DB9 female):
Inovance provides accessory communication cable (Model: H2U-232-CAB Order
No.: 15042148) to work with the DB9 male of the HMI.
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