2   Basic System Configuration and Devices
2-12
CP1E CPU Unit Hardware User’s Manual(W479)
2-3
Expansion I/O Unit or Expansion Unit
This section describes the connection of Expansion I/O Units or Expansion Units to a CP1E CPU Unit.
•
Expansion I/O Units and Expansion Units cannot be connected to E10/14/20(S) or N14/20 CPU Units.
•
A total of up to three Expansion I/O Units and Expansion Units can be connected to an E30/40/60(S),
N30/40/60(S
) or NA20 CPU Unit.
z CP1E E10/14/20(S) or N14/20 CPU Unit
z CP1E E30/40/60(S), N30/40/60(S
) or NA20 CPU Unit
Connection cables for the Expansion I/O Units and Expansion Units are used to connect the Units. 
The length can be extended by using a CP1W-CN811 I/O Connecting Cable (length: 800 mm).
Leave approximately 10mm of space between the CPU Unit and the Exapansion I/O Units or Expan-
sion Units.
2-3-1 Expandable CPU Units
2-3-2 Connection Methods
2-3-3 Maximum Number of I/O Points for an Expansion I/O Unit or 
Expansion Unit 
CPU Unit
Built-in I/O on CPU Unit
Built-in 
Analog
Total number 
of Expansion 
I/O Units and 
Expansion 
Units that can 
be connected
Number of inputs: 24
Number of outputs: 16
Total number of I/O points when 
three CP1W-40ED
 Expansion 
I/O Units are connected
Total
Number 
of inputs
Number 
of outputs
AD DA Total
Number 
of inputs
Number 
of outputs
CP1E-E10D
-
10 6 4 None None Not possible. 10 6 4
CP1E-
14
D
-
14 8 6 14 8 6
CP1E-
20
D
-
20 12 8 20 12 8
CP1E-
30
D
-
30 18 12 3 Units maxi-
mum
150 90 60
CP1E-
40
D
-
40 24 16 160 96 64
CP1E-
60
D
-
60 36 24 180 108 72
CP1E-NA20D- 20 12 8 2 1 140 84 56
CP-series Expansion Units and Expansion I/O
Units cannot be connected.
A total of up to three CP-series Expansion I/O Units 
and Expansion Units can be connected.
CH
NC
NC
NC
NC
NC
NC
COM
COM COM COM COM COM COM03 06 01 03 06
00 02 04 06 08 10
00 01 02 04 05 07 00 02 04 05 07
00 02 04 06 08 10
01 03 05 07 09 11 01 03 05 07 09 11
IN
40EDR
OUT
CH CH
CH CH
EXP
CH
CH
CH
111009080706050403020100
111009080706050403020100
0706050403020100
0706050403020100
CH
NC
NC
NC
NC
NC
NC
COM
COM COM COM COM COM COM03 06 01 03 06
00 02 04 06 08 10
00 01 02 04 05 07 00 02 04 05 07
00 02 04 06 08 10
01 03 05 07 09 11 01 03 05 07 09 11
IN
40EDR
OUT
CH CH
CH CH
EXP
CH
CH
CH
111009080706050403020100
111009080706050403020100
0706050403020100
0706050403020100
CH
NC
NC
NC
NC
NC
NC
COM
COM COM COM COM COM COM03 06 01 03 06
00 02 04 06 08 10
00 01 02 04 05 07 00 02 04 05 07
00 02 04 06 08 10
01 03 05 07 09 11 01 03 05 07 09 11
IN
40EDR
OUT
CH CH
CH CH
EXP
CH
CH
CH
111009080706050403020100
111009080706050403020100
0706050403020100
0706050403020100