4. PERIPHERAL DEVICE, ARC WELDING,
AND END EFFECTOR INTERFACES
CONNECTIONS
B–81505EN/04
4.9
CONNECTING THE
COMMUNICATION
UNIT
4.9.1
RS–232–C Interface
4.9.1.1
This interface can be connected to a handy file or another communication
unit from FANUC.
Interface
RS–232–C port
RS–232–C port
(A–cabinet)
(B–cabinet)
322
CONNECTIONS
B–81505EN/04
4. PERIPHERAL DEVICE, ARC WELDING,
AND END EFFECTOR INTERFACES
R–J3iB
Operator’s panel
connector
(DBM–25S)
Main board
1
2
3
4
5
6
7
8
9
10
11
12
13
FG
SD
RD
RS
CS
DR
SG
14
15
16
17
18
19
20 ER
21
22
23
24
25 +24V
NOTE
1 +24 V can be used as the power supply for FANUC
RS–232–C equipment.
2 Do not connect anything to those pins for which signal
names are not indicated.
4.9.1.2
RS–232–C interface
signals
Generally signals as follows are used in RS–232–C interface.
R–J3iB
Output
SD (Send data)
Input
RD (Recieve data)
RS (Request to Send)
When CS is not used
short CS and RS.
CS (Enable to send)
ER (Ready)
DR (Data set ready)
SG (Signal ground)
FG (Frame ground)
Fig.4.9.1.2 RS–232–C interface
323
When DR is not
used short DR
and ER.
4. PERIPHERAL DEVICE, ARC WELDING,
AND END EFFECTOR INTERFACES
CONNECTIONS
B–81505EN/04
4.9.1.3
Connection between
RS–232–C interface and
external device
The figure below shows a connection with the handshaking of the ER
and DB signals.
R–J3iB
324
SD
SD
RD
RD
RS
RS
CS
CS
ER
ER
DR
DR
CD
CD
SG
SG
FG
FG
External device
side
B–81505EN/04
CONNECTIONS
4. PERIPHERAL DEVICE, ARC WELDING,
AND END EFFECTOR INTERFACES
The figure below shows a connection without the handshaking of the
ER and DB signals.
R–J3iB
SD
SD
RD
RD
RS
RS
CS
CS
ER
ER
DR
DR
External device
side
CD
SG
SG
FG
FG
Prepare the cable as follows :
R–J3iB
SD
RD
RS
CS
SG
ER
DR
Cable : twist 10 pairs
325
0.18mm2, with shield