SERVO SELECTION AND DATA SHEETS
5.6.
15
Cable
s
for Connecting PC and Servopack
cont.
382
•
Shift Control:
None
•
Communications Method:
Semi-duplex
Servopack End (3CN)
RS-232C Port (Personal Computer End)
Shield
Case
Note: Maximum cable length is 2 m (6.56 ft).
3) Connection is also possible to the RS-422A port. In this case, the connection circuit is as
follows:
•
Transmission Distance: 30 m (98.4 ft) max.
•
Transmission System: RS-422A
Servopack End (3CN)
RS-422A Port (Personal Computer End)
Shield
Case
•
Terminal Arrangement at Servopack End
Pin
#
Signal Name
Signal Circuit Name
Signal Direction
1
TXD
Transmit data (not inverted)
P
←
S
2
*TXD
Transmit data (inverted)
P
←
S
3
RXD
Receive data (not inverted)
P
→
S
4
*RXD
Receive data (inverted)
P
→
S
5
OPH
#
6
*RXD
Shorting pins 6 and 7 inserts 220
Ω
termination resistance
7
RT
g p
between RXD and *RXD.
8
5VPP
#
9
GND
Signal ground 0 V
P: Personal computer
S: Servopack
#: Terminal not used, leave open.
5