Manual

WindO/I-NV2 User’s Manual 34-61
5 HG3F/4F
34
MICRO/I Specifications
● Serial interface 2
• Do not connect pin 6 (EN) with any other pins except when performing maintenance communications for
downloading project data.
● Expansion Unit Interface (EXT)
The HG3F/4F can be used in conjunction with dedicated HG Series option units. Refer to the Expansion Unit
instruction manual for details.
● O/I Link Interface
The HG3F/4F Operator Interface can be connected to an O/I Link Unit for 1:N communication with a PLC. This allows
high-speed communication with the PLC host.
Interface Specification RS232C
Connector Mini DIN 8 pin
No. Name I/O Function
1 RS OUT Request to Send
2 ER OUT Data terminal ready
3SD OUT Send Data
4 RD IN Receive Data
5 DR IN Data set ready
6 EN IN Use set ready
7SG ― Signal Ground
8NC ― No connection
6
3
4
7
8
5
2
1