Keyence LS-3100/3100W Series Manual de usuario Pagina 55

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49
CHAPTER 4 Functions and Controls
4-4. I/O Terminal
RS-232C I/O Terminal
The LS controller is provided with the RS-232C interface, which allows the
LS controller to communicate with an external computer. Data transmission
or change of the settings can be remotely performed.
Specifications
The LS controller employs the RS-232C interface (recommended standard
by EIA: Electronic Industries Association) for data transmission. LS controller
is defined as "MODEM".
Communication parameters
Duplex Full
Synchronization Start-stop
Data format ASCII
Data length 8 bits
Stop bit length 1 bit
Parity check None
Baud rate 75/150/300/600/1200/2400/4800/9600/19200 bps*
*Selectable by setting
Pin Assignment
21345
141516171819
6 7 8 91 0
20212223
111213
2425
D-sub 25 pin female connector
Pin 20 is internally connected to the power source via a pull-up resistor. This
pin remains ON unless it is grounded. Therefore, measurement data can be
output regardless of whether pin 20 is connected to external equipment.
Pin No. Modem signal code Modem signal Direction
1 Shield Shield (to signal ground)
2 SD (TXD) Input data from external Input
equipment
3 RD (RXD) Output measurement data Output
to external equipment
5 CS (CTS) ON (High) at power-on Output
6 DR (DSR) ON (High) at power-on Output
7 SG (GND) Signal ground
8 CD (DCD) ON (High) at power-on Output
20 ER (DTR) Enables output of Input
measurements to external
equipment when ON (High)
ls3100_49_64.p65 08.10.1, 10:56 AM49
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