IDEC Micro HG4G Series, Инструкция

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11
4
External Interfaces
●
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 one time.
Wiring both interfaces will result in failure of the HG4G/3G, HG2G-5F. Wire only the
interface used.
4.1 Serial Interface (COM1)
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