Automation Direct T1K-MODBUS-M, User Manual

Page: 19 / 32

T1K–MODBUS
Specifications
Installation and
Safety Guidelines
2–8
T1K–MODBUS Specifications
MODBUS Port Pin–out and Wiring
MODBUS Port Pin Descriptions
1 5V 5 VDC
2 TXD2 Transmit Data (RS232C)
3 RXD2 Receive Data (RS232C)
4 RTS2 Ready to Send (RS–232C)
5 CTS2 Clear to Send (RS–232C)
6 RXD2– Receive Data – (RS–422)
7 0V Logic Ground
8 0V Logic Ground
9 TXD2+ Transmit Data + (RS–422)
10 TXD2 – Transmit Data – (RS–422)
11 RTS2 + Request to Send + (RS–422)
12 RTS2 – Request to Send – (RS–422)
13 RXD2 + Receive Data + (RS–422)
14 CTS2 + Clear to Send + (RS422)
15
CTS2 – Clear to Send – (RS–422)
15-pin Female
D Connector
1
5
11
15
10
6
RS–232C
Point-to-point
DTE Device
2 TXD
3 RXD
4 RTS
5 CTS
7 0V
Signal GND
RXD
TXD
PC/PLC
MODBUS
Master
MODBUS
Port
RXD+
RXD–
TXD+
TXD–
Signal GND
RS–422
Network
MODBUS
Port
9 TXD+
10 TXD–
13 RXD+
6
RXD–
11 RTS+
12 RTS–
14 CTS+
15 CTS–
7
0V
PC/PLC
MODBUS
Master
Termination
Resistor on
last slave only
The recommended cable
for RS422 is Belden
9729 or equivalent.
RS–485
Network
9 TXD+
13 RXD+
6
RXD–
10 TXD–
11 RTS+
Signal GND
TXD+ / RXD+
PC/PLC
MODBUS
Master
MODBUS
Port
14 CTS+
12 RTS–
15 CTS_
7
0V
TXD– / RXD–
Termination
Resistor on
last slave only