Proface AGP3500 - 10.4 DIO HMI" User Manual
Page 63
ST3000 Series Hardware Manual
3-32
Serial Interface (COM2)
This interface is used to connect an RS-422/RS-485
*1
serial cable. A D-Sub 9-pin plug connector is used.
*1
RS-485 is compliant with ST-3400 series units with revision code "A" or later.
ST Connector
XM2C-0942-502LX
Interfit Bracket
#4-40 inch screws are used.
Recommended Cable Connector
XM2D-0901
Recommended Cable Cover
XM2S-0913
Recommended Jack Screw
XM2Z-0073
Pin
Arrangement
Pin No.
RS-422/RS-485
*1
Signal Name
Direction
Meaning
1
RDA
Input
Receive Data A(+)
2
RDB
Input
Receive Data B(-)
3
SDA
Output
Send Data A(+)
4
ERA
Output
Data Terminal Ready A(+)
5
SG
-
Signal Ground
6
CSB
Input
Send Possible B(-)
7
SDB
Output
Send Data B(-)
8
CSA
Input
Send Possible A(+)
9
ERB
Output
Data Terminal Ready B(-)
Shell
FG
-
Frame Ground
(Common with SG)
SEE
9
6
5
1
(ST unit side)
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