KEYENCE DL-RS1A/GT-70A User Manual
Page 8
6
Connecting the Unit to External Devices
■ Connection wiring
Refer to the connection wiring diagram shown below when connecting DL-RS1A to an external
device such as a PC.
• The length of the communication cable must not exceed 15 m.
• Connect the shield wire of the communication cable to the SG terminal of the external device.
• Make sure that the shield wire does not touch other signal wires or the other terminals on
the terminal block.
■ Optional cable
An optional cable shown below is used to connect to an external device such as a PC that has
a D-sub 9-pin I/O connector.
Part number: OP-81283
Pin layout for D-sub 9-pin connector
*1
Pin numbers 4 and 6 are connected inside the connector.
*2
Pin numbers 7 and 8 are connected inside the connector.
*3
Two cables (black and black/white) are connected to the pin number 5.
SD
RD
DR
ER
RS
CS
SG
2
1
3
4
5
6
RD
SG
SD
SG
SG
DRQ
DL-RS1A
External device
(D-sub 9-pin)
Shield
Point
Pin No.
Cable color
1
-
2
Red/white
3
Red
4
*1
-
5
Black, black/white
*3
6
*1
-
7
*2
-
8
*2
-
9
-
33.2
25
16
5000
39.5
1
50
φ7.1
Front
5
9
6
1
Connecting the Unit to External Devices
Sample wiring
*1
Insulate either the black or black/white cable that is not used.
*2
Connect the shield wire to the SG terminal of DL-RS1A. (Shield wire is connected to the
connector casing.)
The green and green/white-striped wires are not connected to any of the connector pins.
■ Input circuit diagram
*
The terminals for SG (Nos. 1, 4, and 5) are connected internally with the blue wire of the sensor
amplifier main unit.
2
3
4
5
6
7
RD
Red/White
Red
SD
DR
SG
ER
RS
8
CS
2
1
3
4
5
6
RD
SG
SD
SG
SG
DRQ
Black, Black/White*
1
DL-RS1A
(Communication terminal block)
External device
(D-sub 9-pin)
Shield
*
2
Reference
Main cir
cuit
(Short-circuit current: 1 mA max.)
6 (DRQ)
+5V
1,4,5 (SG)