Manual

3 HG1F
34-38 WindO/I-NV2 User’s Manual
■ Communication Terminal Block (RS485/422 type: Model No.HG1F-SB22YF only)
Note that this terminal block cannot be used simultaneously with the D-sub connector.
■ Terminating Resistance Selector SW (RS485/422 type: Model No.HG1F-SB22YF only)
Setting the Terminating Resistance Selector SW to the ON side will insert and connect the terminating resistance
(330Ω) between RDA and RDB.
● Serial interface 2
Do not connect pin 6 (EN) with any other pins except when performing maintenance communications for downloading
project data.
Connecting the maintenance communications cable to Serial interface 2 will stop the O/I Link communications.
●
O/I Link Interface
The HG1F 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.
Connecting the maintenance communications cable to Serial interface 2 will stop the O/I Link communications.
Interface Specification RS485/422
Connector Terminal Block 5 pin
Recommended cable
0.3mm
2
Twisted-pair shielded cable
Conductor resistance: 85Ω/km maximum
Shield resistance: 20Ω/km maximum
No. Name Function
1 SDA Send Data A
2 SDB Send Data B
3 RDA Receive Data A
4 RDB Receive Data B
5 SG Signal Ground
1
5
ON
OFF
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
7 SG - Signal Ground
8 NC - No connection
6
3
4
7
8
5
2
1
Recommended cable
0.3mm
2
Twisted-pair shielded cable
Conductor resistance: 85Ω/km maximum
Shield resistance: 20Ω/km maximum