Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 92

Component Names and Functions
RS-232C Ports
Note
Note
Error Information. Refer to Inner Board Error Information under 2-3-3 Related
Auxiliary Area Bits.
For actions required when an error occurs, refer to Section 11 Troubleshooting
and Maintenance.
Protocol
Communications Full-duplex
method
Synchronization Start-stop synchronization (asynchronous)
Baud rate 1,200/2,400/4,800/
9,600/19,200/
38,400/57,600/
115,200 bps
Connections 1:1 (1:N is possible using Link Adapters)
Transmission 15 m max. (see note 2)
distance
Interface Complies with EIA RS-232C
1. High-speed NT link is only available with Serial Communications Boards/
Units manufactured on or after December 20th, 1999. With earlier models,
only standard NT link is available.
2. The maximum cable length for RS-232C is 15 m. The RS-232C standard,
however, does not cover baud rates above 19.2 Kbps. Refer to the manual
for the device being connected to confirm support.
Connector Pin Layout
Pin No. Abbreviation
1 (see note 1) FG
2 SD
3 RD
4 (see note 2) RTS (RS)
5 (see note 2) CTS (CS)
6 (see note 3) 5V
7 (see note 2) DSR (DR)
8 (see note 2) DTR (ER)
9 SG
Shell (see note 1) FG
1. Pin No. 1 and the shell are connected to the ground terminal (GR) of the
Power Supply Unit inside of the Serial Communications Board. Therefore,
the cable shield can be grounded by grounding the GR of the Power Sup-
ply Unit.
2. The status of the RTS (RS), CTS (CS), DSR (DR), and DTR (ER) signals
can be monitored in the words allocated in the CIO Area. For details, refer
to 2-3 I/O Memory Allocations.
3. Pin 6 (5 V) is required when the NT-AL001-E Link Adapter is connected.
For details on connection methods, refer to 3-3 Wiring.
4. The DSR signal is used to monitor the signal cable. It can also be used as
a CD (carrier detect) signal. (The DSR signal does not affect system oper-
ation, and is available for use by the user.)
Host Link Protocol macro
Full-duplex or half-
duplex
1,200/2,400/4,800/
9,600/19,200/
38,400 bps
Signal name
Shield
Send data
Receive data
Request to send
Clear to send
Power supply
Data set ready
Data terminal ready (see
note 4)
Signal ground
Shield
Section 2-1
1:N NT Links
Half-duplex
Standard NT link or
high-speed NT link
I/O
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Output
Input
Output
Input
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Input
Output
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