64
6 Useful Functions
64
Useful Functions
Chapter
6
6-10. Using an RS-232C interface (option)
The details for an RS-232C interface are as follows.
6-10-1.Communication specifications
■ Standards
Signal level RS-232C compliant
Transmitting distance Approx. 15 m
Transmitting method Asynchronous, full duplex
Transmitting speed Select from 4800, 9600, 19200, 38400, 57600, 115.2k bps
Bit configuration Start bit 1 bit
Character length Select from 7 or 8 bits
Stop
bit Select from 1 or 2 bits
Parity bit Select from none, odd or even
Code ASCII
■ Connector pin assignment
■ Cables
Use a cross type cable if the cable is connected to a DTE (data terminal device, PC and so on) and a
straight type cable if connected to a DCE (data circuit terminator, modem and so on). Below are
examples of using cross cables.
Compatible connector: 9-pin D-SUB connector
(DE-09SN manufactured
by JAE, XM2D-0901 manufactured by OMRON and so on)
1 6 IN DSR
2 IN RXD 7
3 OUT TXD 8
4 OUT DTR 9
5 * GND
Cross type cable
1
2 RXD
3 TXD
4 DTR
6 DSR
7
8
5 GND
9
1 CD
2 RXD
3 TXD
4 DTR
6 DSR
7 RTS
8 CTS
5 GND
9 RI
PC (9 pin)F701+
Cross type cable
1
2 RXD
3 TXD
4 DTR
6 DSR
7
8
5 GND
9
8 CD
3 RXD
2 TXD
20 DTR
6 DSR
4 RTS
5 CTS
7 GND
1 FG
PC (25 pin)F701+