FX3U Series Programmable Controllers
User’s Manual - Hardware Edition
353
16 FX2N-8/16E*-*(Input/Output Extension Blocks)
16.13 FX2N-16EYS (Triac Output: 16 Points)
11
High-Speed 
Counters
12
Output Wiring
13
Wiring for 
Various Uses
14
Test Run, 
Maintenance, 
Troubleshooting
15
IInput/Output 
Powered 
Extension Units
16
Input/Output 
Extension 
Blocks
17
Extension 
Power Supply 
Unit
18
Other Extension 
Units and 
Options
19
Display Module
20
Terminal Block
16.13.2 Parts identification and terminal arrangement
When an output (Y) number is assigned, 8 points on the upper side will be used for the lower output numbers,
and 8 points on the lower side will be used for the higher output numbers.
16.13.3 External dimensions
Y0 Y2 Y4 Y2 Y4 Y6
COM2
Y7Y5Y3Y1Y0Y7Y6Y5Y3Y1
COM1
With cover
Output indicator 
lamps 
(LED lamps)
Output indicator 
lamps 
(LED lamps)
Without cover
Rear line 
extension 
connector
Y0
COM1
Y1
Y2
Y3
Y4
Y5 Y7Y6 Y0 Y1
Y2
Y3
Y4
Y5
Y6
Y7
COM2
Lower
numbers
Higher
numbers
FX
2N
-16EYS
87(3.43")
80(3.15")
(mounting hole pitch)
90(3.55")
Unit:mm (inches)
9(0.36")
40(1.58")
2-φ4.5 mounting holes