Connection With Melsec Q Series (Qj71C24N) - Toshiba nv Series Instruction Manual

2.4.4

Connection with MELSEC Q series (QJ71C24N)

(1) RS-232C Transmission cable connection
The table below shows the connection between the RS-232C interface
connector (25 pins) of the computer link unit and the RS-232C connector (9
pins) of the IS911 module.
Pin
Number
(2) RS-422 Transmission cable connection
The table below shows the connection between the RS-422 interface
connector (terminal block) of the computer link unit and the RS-422 / 485
terminal block of the IS911 module.
RS-485Terminal
Pin
Number
(Note1)
(Note 1) If the IS911 module or computer link unit (QJ71C24N) is at the end
of the line, attach a terminating resistor.
IS911 Module
RS-232C
Connection
Connector
Signal
Name
1 DCD
RXD
2
TXD
3
4 DTR
SG
5
DSR
6
RTS
7
8 CTS
9 CI
Shielded wire
IS911 Module
Connection
Block
Signal
Name
1 TXD1
TXD0
2
3 RXD1
4 RXD0
5 GRD
Shielded wire
Terminating resistor
RS-422 : 330Ω 1/4W
RS-485 : 110Ω 1/2W
Unified Controller nv series TC-net I/O Serial Communication Module IS911 Instruction Manual
2.4 Transmission cable connection
QJ71C24N
RS-232C
Connector
Pin Signal
Number Name
1 CD
2 RD
3 SD
4 DTR
5 SG
6 DSR
7 RS
8 CS
9 Cl
15
17
20 DTR
22
24
QJ71C24N
RS-422 Connector
Signal Name
SDA
SDB
RDA
RDB
SG
FG
NC
(Note1)
23