User Manual

GP3000H Series Hardware Manual
2-8
2.3.1 Serial Interfaces
This interface is used to connect an RS-232C/RS-422/RS-485
*1
cable. Connect to the D-SUB 9-pin plug type
connector.
For host controller (PLC, etc.) connection information, refer to the “GP-Pro EX Device/PLC Connection
Manual”.
In the case of RS-232C
In the case of RS-422/RS-485
*1 Communication method is switched via software.
*2 The RI/VCC selection is switched via software. The VCC output is not protected against over current.
To prevent damage or a unit malfunction, use only the rated current.
*3 Select AWG22 cable to use out of two green cables.
Recommended Cable Connector XM2D-0901 <OMRON Co.>
Recommended Cable Cover XM2S-0913 <OMRON Co.>
Recommended Jack Screw #4-40 (UNC) XM2Z-0073 <OMRON Co.>
Cable Color/
Marking Color,
Number
RS-232C
Signal Name Direction Description
Brown/White 1 CD Input Carrier Detect
Brown/Black 1 RD(RXD) Input Receive Data
Brown/White 2 SD(TXD) Output Send Data
Brown/White 4 ER(DTR) Output Data Terminal Ready
Brown/None SG - Signal Ground
Brown/Black 3 DR(DSR) Input Data Set Ready
Brown/Black 2 RS(RTS) Output Request to Send
Brown/White 3 CS(CTS) Input Send Possible
Brown/Black 4 CI(RI)/VCC Input/-
Called status display
+5 V
± 5% Output 0.25 A
*2
Green/None FG
*3
- Frame Ground (Common with SG)
Cable Color/
Marking Color,
Number
RS-422/RS-485
Signal Name Direction Description
Brown/White 1 RDA Input Receive Data A(+)
Brown/Black 1 RDB Input Receive Data B(-)
Brown/White 2 SDA Output Send Data A(+)
Brown/White 4 ERA Output Data Terminal Ready A(+)
Brown/None SG - Signal Ground
Brown/Black 3 CSB Input Send Possible B(-)
Brown/Black 2 SDB Output Send Data B(-)
Brown/White 3 CSA Input Send Possible A(+)
Brown/Black 4 ERB Output Data Terminal Ready B(-)
Green/None FG
*3
- Frame Ground (Common with SG)
• The GP3000H Direct-connect cable’s serial interface is not isolated. When the
host (PLC) unit is also not isolated, and to reduce the risk of damaging the RS-
232C/ RS-422/RS-485 circuit, be sure to connect the SG (Signal Ground)
terminal.