Omron R88A-MCW151-DRT-E - Page 46

31
Wiring Section 2-3
I/O Connector Type Weidmüller B2L 3.5/26 SN SW (included in package)
Wiring Instructions
Power Connector
The Power Connector is used to connect the 24V power supply to the MC
Unit.
Connector pin
arrangement
Power Connector Type Phoenix MSTB 2.5/3-ST-5.08 (included in package)
2-3-2 Serial Port Connections
RS-232C Connections
The MC Unit has two serial RS-232C ports for communication with external
devices.
RS-232C Interface Specifications
1
2
3
Pin Name Function
1 +24 V Power Supply 24V
2 0 V Power Supply 0V
3 FG Frame Ground
+24V
0V
Item Specifications
Electrical characteristics Conform to EIA RS-232C
Synchronization Start-stop synchronization (asynchronous)
Baud rate 1200 / 2400 / 4800 / 9600 / 19200 / 38400 bps
Transmission Format Databit Length 7 or 8 bit
Stop Bit 1 or 2 bit
Parity Bit Even/Odd/None
Transmission Mode Point-to-point (1:1)
Pin Symbol Name Port Direction
1- Not used -
2 RS-1 Request to send 1 Output
3 SD-0 Send data 0 Output
4 SG-0 Signal ground 0 -
5 RD-0 Receive data 0 Input
6 SD-1 Send data 1 Output
7 SG-1 Signal ground 1 -
8 RD-1 Receive data 1 Input
PORT0 ,1
1
3
6
4
7
8
5
2