FLEX I/O DC Input, Output, and Input/Output Analog Modules
7
Publication 1794-IN106D-EN-E - January 2014
Connect Wiring
Connect the wiring for the 1794-TB3G and 1794-TB3GS terminal bases as shown in the
following figure:
Terminal Base Wiring for the 1794-IE12/A Analog Input Module
ATTENTION:
To reduce susceptibility to noise, power analog modules and
digital modules from separate power supplies. Do not exceed a length of
10 m (33 ft) for DC power or analog I/O cabling.
ATTENTION:
Do not daisy-chain power or ground from this terminal base
unit to any AC or DC digital module terminal base units.
ATTENTION:
Do not exceed a length of 10 m (33 ft) for signal cabling.
I = Current
[1794-TB3G shown]
V=Voltage
C-0...C-11 = Returns for I or V connections 0...11
+24V DC = Terminals C-34 and C-50
COM = Terminals C-35 and C-51
Chassis ground (CG) = Terminals B-16, B-33, C-38, C-40...C-45, C-47
NC = No connection
For daisy-chaining: Supply in – C-34 (+) and C-35 (-)
Supply out – C-50 (+) and C-51 (-)
24V DC
Supply In
24V DC
Supply Out
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
34
Chassis
Ground
Chassis
Ground
+V
COM
+V COM
Chassis Grounds for Shields
A
B
C
NC
I0
I1
I2
I3
I4
I5
I6
I7
I8
I9
I10
I11
V0
V1
V2
V3
V4
V5
V6
V7
V8
V9
V10
V11
C0 C1
C2 C3 C4 C5
C6 C7
C8
C9
C10
C11
NC
NC
NC
