Manual

5 HG3F/4F
34-60 WindO/I-NV2 User’s Manual
5.4
External Interfaces
● Serial Interface 1
■ D-sub Connector
To enable the 330Ω built-in terminator, connect terminal No. 9 [TERM] and terminal No. 10 [RDA/RD (+)] together.
CAUTION
Make sure to turn off the power to the HG3/4F before wiring each interface.
Interface Specification RS232C/485(422)
Connector D-sub 25 pin
Screw lock bracket Metric screw thread
No. Name Function
1FG Frame Ground
2 SD Send Data (RS232C)
3 RD Receive Data (RS232C)
4 RS Request to Send (RS232C)
5 CS Clear to Send (RS232C)
6 ――
7 SG Signal Ground
8 ――
RS485 RS422
9TERMTerminator TERMTerminator
10 RDA Receive Data A RD+ Receive Data (+)
11 SDA Send Data A SD+ Send Data (+)
12 ―― ――
13 ―― ――
14 ―― ――
15 SDB Send Data B SD- Send Data (-)
16 RDB Receive Data B RD- Receive Data (-)
17 ―― ――
18 ―― CS- Clear to Send (-)
19 ―― RS- Request to Send (-)
20 ER Data Terminal Ready (RS232C)
21 ―― CS+ Clear to Send (+)
22 ―― RS+ Request to Send (+)
23 ―― ――
24 ―― ――
25 ―― ――