3 REPLACEMENT OF I/O MODULE
3 - 38
(23)Specifications comparison between A1SX42-S2 and QX41-S2
: Compatible, : Partially changed, : Incompatible
*1 Check the specifications of the sensor or switches to be connected to the QX41-S2.
*2 The following shows the derating chart.
Specifications A1SX42-S2 QX41-S2
Compat-
ibility
Precautions for replacement
Number of input points 64 points 32 points
When 33 or more points are
used, use two QX41-S2
modules.
Isolation method Photocoupler Photocoupler
Rated input voltage 24VDC 24VDC
Rated input current Approx. 5mA Approx. 6mA
Operating voltage range
19.2 to 26.4VDC
(ripple ratio within 5%)
20.4 to 28.8VDC
(ripple ratio within 5%)
The operating voltage range
differs.
Maximum number of
simultaneous input points
Refer to the derating chart.
*2
Refer to the derating chart.
*2
Use it within the range shown in
the derating chart.
On voltage/on current 17.5VDC or more/3.5mA or more 15VDC or more/3mA or more
The on voltage/on current differ.
*1
Off voltage/off current 7VDC or less/1.7mA or less 5VDC or less/1.7mA or less
The off voltage differs.
*1
Input resistance Approx. 4.7k Approx. 3.6k
The input resistance is reduced.
*1
Response
time
Off on
10ms or less
(24VDC)
1ms/5ms/10ms/20ms/70ms or less
(Configure
the setting in the PLC
parameter dialog box.
)
10ms is set by default.
Set the input response time of
parameter to the default value
(10ms).
On off
10ms or less
(24VDC)
1ms/5ms/10ms/20ms/70ms or less
(Configure
the setting in the PLC
parameter dialog box.
)
10ms is set by default.
Common terminal
arrangement
32 points/common
(common terminal:
1B1, 1B2, 2B1, 2B2)
32 points/common
(common terminal: B01, B02)
Operation indication
On indication (LED)
32-point switching indication with the
switch
On indication (LED)
32-point switching indication with the
switch
External connection
system
40-pin connector 2 pieces
(accessory)
40-pin connector 2 pieces
(sold separately)
Existing external wiring can be
used.
Applicable wire size
0.3mm
2
0.3mm
2
(A6CON1, A6CON4)
Current consumption 0.09A (typ. all points on) 0.075A (typ. all points on)
External dimensions 130(H)34.5(W)93.6(D)mm 98(H)27.4(W)90(D)mm
Weight 0.28kg 0.15kg
(A1SX42-S2) (QX41-S2)
On
ratio
Ambient temperature
100
90
80
70
60
50
40
010 20 30 40 5055
30
20
(%)
10
(31.25%) 24VDC
(18.75%) 28.8VDC
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