
D-9
NE1A/DST1
Internal Circuit Configuration
NE1A-SCPU01
Safety I/O Terminals
V
+
CAN H
DRAIN
CAN L
V
−
D
+
D
−
DeviceNet
physical layer
DC-DC converter
(non-isolated)
DC-DC converter
(isolated)
Safety input circuits
Test input circuits
Internal Circuit
USB
24 VDC
24 VDC
V0
G0
V1
G1
T0
T3
IN0
IN15
Safety output circuits
24 VDC
V2
G2
L
OUT0
L
OUT7
DST1-ID12SL-1
DST1-MD16SL-1
DST1-MRD08SL-1
V
+
CAN H
DRAIN
CAN L
V
−
V
+
CAN H
DRAIN
CAN L
V
−
V
+
CAN H
DRAIN
CAN L
V
−
G
G
T0
T1
T0
T1
T0
T1
T0
T1
T0
T1
T0
T1
G
G
G
G
G
G
11
12
13
14
15
16
17
18
19
20
31
32
33
34
35
36
37
38
39
40
V
Physical
layer
Input power
supply circuits
Safety input circuits
Test output circuits
DC-DC converter
(non-isolated)
V
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
IN9
IN10
IN11
T2
T2
T2
T3
T3
T3
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
Internal circuits
G0
G0
T0
T1
T0
T1
T0
T1
T2
T3
G1
G1
G1
G1
G1
G1
G1
G1
G1
G1
11
12
13
14
15
16
17
18
19
20
31
32
33
34
35
36
37
38
39
40
V0
Physical
layer
Input power
supply circuits
Test output
circuits
Output power
supply circuits
Safety input circuits
Safety output circuits
DC-DC converter
(non-isolated)
V0
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
V1
V1
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
Internal circuits
G0
G0
T0
T1
T0
T1
G0
G0
G0
G0
G1
G1
C0
C0e
C1
Ry
0
Ry
1
Ry
2
Ry
2
C1e
C2
C2e
C3
C3e
11
12
13
14
15
16
17
18
19
20
31
32
33
34
35
36
37
38
39
40
V0
Safety input circuits
V0
IN0
IN1
IN2
IN3
T2
T2
T3
T3
V1
V1
OUT0
OUT0
OUT1
OUT1
OUT2
OUT2
OUT3
OUT3
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
Internal circuits
Physical
layer
DC-DC converter
(non-isolated)
Output power
supply circuits
Test output
circuits
Input power
supply circuits