Proface AGP3500 - 10.4 DIO HMI" User Manual
Page 101
GP3000 Series Hardware Manual
4-36
In the case of RS232C
In the case of RS422/RS485
Pin
Arrangement
Pin No.
RS232C
Signal Name
Direction
Meaning
1
CD
Input
Carrier Detect
2
RD(RXD)
Input
Receive Data
3
SD(TXD)
Output
Send Data
4
ER(DTR)
Output
Data Terminal Ready
5
SG
-
Signal Ground
6
DR(DSR)
Input
Data Set Ready
7
RS(RTS)
Output
Request to Send
8
CS(CTS)
Input
Send Possible
9
CI(RI)/VCC
Input/-
Called status display
+5V
±
5% Output 0.25A
*1
*1
The RI/VCC selection for Pin #9 is switched via software. The VCC output is not
protected against overcurrent. To prevent damage or a unit malfunction, use only the
rated current.
Shell
FG
-
Frame Ground
(Common with SG)
Pin
Arrangement
Pin No.
RS422/RS485
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)
9
6
5
1
(GP unit side)
9
6
5
1
(GP unit side)