Technical data

Publication 1794-2.1 - January 2000
FLEX I/O and FLEX Integra Product Data
24V dc Electronically Fused 8 Output Module Cat. No. 1794-OB8EP 81
24
V
dc
Ele
ctr
oni
cal
ly
Fu
se
d 8 Output Module Cat. No. 1794-OB8EP
1794-OB8EP
8 ELECTRONICALLY FUSED OUTPUT
10234
5
67
2
10234
5
67
OOOOO
O
OODDDDD
D
DD
RST
40116
Recommended
Terminal Base
Compatible
Terminal Base(s)
TB3 TBNTB3S TB2
1794-TB3, -TB3S, and -TB2 1794-TBN
Output Output Terminal
Common Terminal
1
Output Terminal
Common Terminal
2
Output 0 A-0
A-1
1
/B-17
B-0
C-1
2
Output 1 A-2
A-3
1
/B-19
B-2
C-3
2
Output 2 A-4
A-5
1
/B-21
B-4
C-5
2
Output 3 A-6
A-7
1
/B-23
B-6
C-7
2
Output 4 A-8
A-9
1
/B-25
B-8
C-9
2
Output 5 A-10
A-11
1
/B-27
B-10
C-11
2
Output 6 A-12
A-13
1
/B-29
B-12
C-13
2
Output 7 A-14
A-15
1
/B-31
B-14
C-15
2
A = output terminals
B = common terminals
C = power terminals (C-34 thru 51 for 1794-TB3, -TB3S; 34 and 51 for 1794-TB2)
B = even numbered output terminals 0 thru 14,
dc common terminals 16 and 33
C = power terminals C-34 and C-51, and odd numbered output common
terminals 1 thru 15
1 A-1, 3, 5, 7, 9, 11, 13, and 15 are connected together inside the module to 24V dc common.
2 C-1, 3, 5, 7, 9, 11, 13, and 15 are connected together inside the module to 24V dc common.
40117
Flexbus
Interface
V
CC
Opto
Isolation
Output
Device
+24V
OUT
COM
24V
C-34
A-0 (B-0)
B-17 (C-1)
B-16
+
-
Protected
Output
Device
Typical Simplified Schematic for Output 0
TBN shown
16 0 2 4 6 8 10 12 14 33
34 1 3 5 7 9 11 13 15 51
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1716 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49
51
50
1794-TB3
1794-TB3S
1794-TB2
1794-TBN
0
12
3456
7
8
9
10
11
12 13
14 15
0-15
16-33
34-51
A
B
C
B
C
16, 0, 2, 4, 6,
8, 10, 12, 14, 33
34, 1, 3, 5, 7,
9, 11, 13, 15, 51
Even Numbered Terminals 0 thru 14
16
51
33
34
40108
Wi
r
i
ng
34 and 51
for TB2