SERVO SELECTION AND DATA SHEETS
5.6.15 Cables 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
between RXD and *RXD.
8 5VPP #
9 GND Signal ground 0 V
P: Personal computer
S: Servopack
#: Terminal not used, leave open.
5
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