4. Product Specification
4.1 Specification
All other specifications than the followings are equivalent to those of the FX Series
PLC main unit.
4.2 Outside Dimensions and Part Names
Item Specification
General
specification
Withstand voltage
500V AC, 1 min (between terminal
block and FX Series PLC main unit)
Insulation resistance
5 MΩ or more, 500V DC by Megger
(between terminal block and FX Series
PLC main unit)
Power
supply
specification
Power supply voltage,
current
5V DC (supplied from PLC main unit),
max. 150 mA
Performance
specification
Transmission standard Conforming to RS-485/RS-422
Type of isolation Photo-coupler isolation
Transmission distance
Total extension distance: 500 m or less
(50 m or less if FX2N-485-BD or FX1N-
485-BD is installed in connected
equipment)
Connection method
European type terminal block, AWG 26-
16 (when inserting one twisted pair
cable), AWG 26-20 (when inserting two
twisted pair cables)
Tightening torque: 0.4 to 0.5 N·m
Number of occupied I/O
points
0 point (unrelated to maximum number
of controlled points of the PLC)
Communication method Half-duplex
Baud rate
N:N network: 38400 bps,
Parallel link: 19200bps
Computer link, No protocol:
300/600/1200/2400/4800/9600/19200 bps
Communication format
N:N network, Parallel link
Computer (dedicated protocol: format
1/format 4), No protocol
LED display (LED color) Power: green, RD: red, SD: red
RDA
RDB
SDA
SDB
SG
74(2.92) 4
(0.16)
7(0.28)
(Height of screw hole)
16.1(0.64)
(to screw holes)
1)
2)
Unit: mm (inches)
19.1
(0.76)
7)
65.5(2.58)
(between screw holes)
10
(0.40)
90(3.55)
Weight:
Color:
DIN rail width:
Accessories:
3)
4)
5)
6)
8)
Approx. 0.1 kg (0.22 lbs)
Munsell 0.08GY 7.64/0.81
35 mm (1.37")
Terminal resistors (330 Ω x 2 and 110 Ω x 1),
4.3 Terminal configuration and recommended screwdriver
The terminal configuration of the RS-485 port on the 485ADP is as shown below.
Signal name Function
Signal direction
485ADP RS-485 equipment
RDA (RXD+)
Receive data ← RDB (RXD-)
SDA (TXD+)
Send data → SDB (TXD-)
• Not used Do not wire.
SG (GND) Signal ground —
RDA
RDB
SDA
SDB
SG
Terminal screws
0.6mm
(0.02")
3.5mm
(0.13")
The end
should be
straight.
Recommended screwdriver to tighten terminal screws