3 HG4G/3G, HG2G-5F
35-38
WindO/I-NV4 User’s Manual
3.4 External Interfaces
●
Serial Interface (COM1)
CAUTION
• Make sure to turn off the power to the HG4G/3G, HG2G-5F before wiring each interface or
switching the terminating resistor selector switch.
• Note that only one of the RS232C or RS422/485 interfaces can be used at same time. Wiring both
interfaces will result in failure of the HG4G/3G, HG2G-5F. Wire only the interface used.
Interface Specification
RS232C, RS422/485
Connector
D-sub 9-pin (Plug)
Screw lock bracket
Inch Screw Thread #4-40 UNC
No.
Name
I/O
Function
Communication type
1
4W-RDA/2W-A
IN/INOUT
Receive Data (+) [4W]/ Send and Receive Data (+) [2W] RS422/485
2
RD
IN
Receive Data
RS232C
3
SD
OUT
Send Data
RS232C
4
4W-SDA
OUT
Send Data (+) [4W]
RS422/485
5
SG
-
Signal Ground
-
6
4W-RDB/2W-B
IN/INOUT
Receive Data (-) [4W]/ Send and Receive Data (-) [2W]
RS422/485
7
RS
OUT
Request to Send
RS232C
8
CS
IN
Clear to Send
RS232C
9
4W-SDB
OUT
Send Data (-) [4W]
RS422/485
1
5
6
9
Summary of Contents for WindO/I-NV4
Page 1: ...B 1701 16 User s Manual...
Page 108: ...5 WindO I NV4 Common Operations and Settings 2 76 WindO I NV4 User s Manual...
Page 256: ...7 BACnet Communication 3 148 WindO I NV4 User s Manual...
Page 372: ...6 Screen Restrictions 5 32 WindO I NV4 User s Manual...
Page 390: ...5 Part Library Function 6 18 WindO I NV4 User s Manual...
Page 420: ...3 Text 7 30 WindO I NV4 User s Manual...
Page 628: ...2 Multi State Lamp 9 34 WindO I NV4 User s Manual...
Page 924: ...4 Meter 11 76 WindO I NV4 User s Manual...
Page 990: ...7 Timer 12 66 WindO I NV4 User s Manual...
Page 1030: ...4 Using Data and Detected Alarms 13 40 WindO I NV4 User s Manual...
Page 1098: ...4 Using the Data 15 22 WindO I NV4 User s Manual...
Page 1248: ...5 Restrictions 22 18 WindO I NV4 User s Manual...
Page 1370: ...2 Monitoring on the MICRO I 25 28 WindO I NV4 User s Manual...
Page 1388: ...4 Restrictions 26 18 WindO I NV4 User s Manual...
Page 1546: ...5 Module Configuration Dialog Box 30 36 WindO I NV4 User s Manual...
Page 1614: ...3 Settings 34 14 WindO I NV4 User s Manual...
Page 1726: ...5 Text Alignment A 10 WindO I NV4 User s Manual...