IDEC FT1A Series User Manual

S MART AXIS P RO /L ITE U SER ' S M ANUAL FT9Y-B1378 10-3
10: U SER C OMMUNICATION I NSTRUCTIONS
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.
To Port 2
RS485 Communication Cartridge
FT1A-PC3
To Port 3
To Port 2
RS485 Communication Cartridge
FT1A-PC2
To Port 3
31 devices maximum
Shielded twisted pair cable
200 meters (656 feet) maximum
Core wire 0.3 mm
2
RS485 Device
RS485 Device
RS485 Device
Cable Connector Pinouts
Pin Port 2, Port 3 AWG# Color
1 2B8
Twisted
Black
2 A28Yellow
3 NC (no connection) 28 Blue
4 NC (no connection) 28 Green
5 NC (no connection) 28 Brown
6 NC (no connection) 28 Gray
7 SG (signal ground) 26
Twisted
Red
8 NC (no connection) 26 White
Cover — — Shield
Signal Direction

IDEC FT1A Series Specifications

General

Brand	IDEC
Model	FT1A Series
Category	Controller
Language	English