KEYENCE LS-5000 - Manual (Page 94)

Chapter 8 RS-232C I/O
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8
8.1 RS-232C Communication Protocol
Using the RS-232C interface, the LS-5000 series can communicate with a personal
computer. Data transmission and setting changes can be remotely controlled.
■ Pin Assignment
1 2 3 4 5 6
Pin No. Signal code Description Direction
of signal
1 — No connection —
2 — No connection —
3 SD (TXD) Inputs data from Input
external equipment
4 SG (GND) Signal ground —
5 RD (RXD) Outputs measured Output
value data
6 — No connection —
Example of Connections
Do not connect terminals (1), (2) and (6).
■ Communication Protocol
Conforming to EIA RS-232C
These settings can be changed by adjusting DIP switch 2.
When DIP switch 2 is set to ON and “STX + ETX” is selected, OUT1’s measured
value is output continuously.
3
5
4
2
3
4
6
7
8
5 SD
RD
SG
SD
RD
RS
CS
DR
ER
SG
LS PC
RJ11 modular
connector
9 pin D-sub
connector
3
5
4
2
3
4
5
6
20
7
SD
RD
SG
SD
RD
RS
CS
DR
ER
SG
LS PC
RJ11 modular
connector
25 pin D-sub
connector
DIP switch 2 setting OFF ON
Duplex Full
Synchronization Start-stop
Data format ASCII
Data length 8
Stop bit length 1
Parity check None Even
Baud rate 9600
Delimiter CR STX + ETX
Applicable Personal computer, KV series (KV mode)
external equipment KV-300 with KV-L2
(Non procedure mode)
■ Setting Delimiter
1 2 3 4
ON
OFF
ON
OFF
STX +ETX
C R
DIP switch 2
DIP switch