Rs485 User Communication System Setup - IDEC SmartAXIS FT9Z-1A01 User Manual

RS485 User Communication System Setup

Using the RS485 user communication, a maximum of 31 RS485 devices can be connected to the SmartAXIS.
When using port 2 or 3 for RS485 communication on the SmartAXIS, install the RS485 communication cartridge (FT1A-PC2 or
FT1A-PC3) to the expansion communication port.
Connect RS485 device to the RS485 terminals A, B, and SG of port 2 or 3 on the SmartAXIS using a shielded twisted pair cable as
shown below. When using the RS485 communication cartridge (FT1A-PC2) to the expansion communication port, use the user
communication cable FC2A-KP1C. One end of the user communication cable is not provided with a connector, and can be
terminated with a proper connector to plug in to communicate with the RS232C port.
RS485 Communication Cartridge
RS485 Communication Cartridge
Cable Connector Pinouts
Pin
1 B
2 A
3 NC (no connection)
4 NC (no connection)
5 NC (no connection)
6 NC (no connection)
7 SG (signal ground)
8 NC (no connection)
Cover
To Port 2
To Port 3
FT1A-PC3
To Port 2
To Port 3
FT1A-PC2
Port 2, Port 3
—
S A XI S P
M AR T R O
10 : U
RS485 Device
RS485 Device
Shielded twisted pair cable
200 meters (656 feet) maximum
Core wire 0.3 mm 2
AWG#
2 8
Twisted
28
28
28
28
28
26
Twisted
26
—
/ L U ' M FT9Y-B 1378
I TE SER S ANUAL
C
SER OM M UN I CATI ON
31 devices maximum
RS485 Device
Color
Black
Yellow
Blue
Green
Brown
Gray
Red
White
Shield
I
N STR UCTI ON S
Signal Direction
10-3