Appendix BSpecifications
117
RS-232C Port Specifications
RS-232C Specifications The specifications for the RS-232C port are given below. Devices that meet
these specifications can be connected.
Connector Pin Assignments
Pin assignments for the RS-232C port are given in the following table.
Pin Abbreviation Name Direction
1 FG Field ground ---
2 SD (TXD) Send data Output
3 RD (RXD) Receive data Input
4 RS (RTS) Request to send Output
5 CS (CTS) Clear to send Input
6 5V Power supply ---
7 DR (DSR) Data set ready Input
8 ER (DTR) Data terminal ready Output
9 SG Signal ground ---
Connector fitting FG Field ground ---
Connections
The connections between the C200HX/C200HG/C200HE and a personal com-
puter are illustrated below as an example.
1
2
3
4
5
6
FG
SD
RD
RS
CS
5V
DR
ER
SG
7
8
9
1
2
3
4
5
6
7
8
9
SD
RD
RS
CS
DR
SG
CI
9
ER
C200HE/C200HG/C200HX Personal Computer
SignalPin
No.
Signal Pin
No.
Shielded cable
CD
Applicable Connectors
The following connectors are applicable. One plug and one hood are included
with the CPU Unit.
Plug: XM2S-0901 (OMRON) or equivalent
Hood: XM2S-0911 (OMRON) or equivalent
Port Specifications
Item Specification
Communications method Half duplex
Sync Start-stop
Baud rate 1,200, 2,400, 4,800, 9,600, or 19,200 bps
Transmission method Point to point
Transmission distance 15 m max.
Interface EIA RS-232C
5
1
9
6
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