KEYENCE LS-7000 - Manual (Page 146)

7-4
Chapter 7 RS-232C
7
Communication using Serial Commands
To enable the LS-7000 Series to transmit measured values or allow setting changes,
connect a peripheral device, such as a PC or PLC link unit to the LS-7000 Series.
Connecting to a PC/PLC Link Unit
The following section provides information on how to connect PCs or PLC link units to the
LS-7000 Series. Use the dedicated OP-35382 cable (with 9-pin D-sub connectors) or the
OP-25253 (with 25-pin D-sub connectors) for connection.
When connecting the PLC link unit, refer to the operation manual of the PLC link unit for
necessary information.
Note: The output of the LS-7000 Series under external synchronous control cannot
be connected to printers.
Connections
SD(TXD) SD(TXD)
RD(RXD)
SG(GND)
RS(RTS)
CS(CTS)
DR(DSR)
CD(DCD)
ER(DTR)
RD(RXD)
SG(GND)
PC side
LS side
Signal
name
op-
35382 op-
25253
■ Environment Settings
Make the following environment settings according to the PC or PLC link unit to be
connected. Refer to RS-232C on page 5-7 for environment settings in detail.
Item
BAUDRATE
PARITY
STOPBIT
D-LENGTH
D-MODE
D-SEND
NONE/EVEN/ODD
1/2
7/8
NORMAL
OFF
Select the settings specified in this
table.
Set value Remarks
1200/2400/4800/9600/19200
/38400/57600/115200bps
Make settings according to the
external device.
❈ When the D-MODE item is set to NORMAL, the Cr character will be selected for
delimiter insertion.
❈ When the D-SEND item is set to OFF, measured value output and setting changes
will be possible through RS-232C commands.