Wiring connections for 1794-if2xof2i, Input/output module, Wiring connections – Rockwell Automation 1794-IF2XOF2I FLEX I/O 2 In/2 Out Isolated Analog Combo Module User Manual
Page 3: For 1794-if2xof2i input/output module
FLEX™ I/O Isolated Input/Output Analog Module 3
Publication 1794-IN039F-EN-P - November 2011
2. 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS: Connect
each channel signal return to numbered terminals on the 0…15 row (A) as
indicated in the
Wiring Connections for 1794-IF2XOF2I Input/Output
table. Use Belden 8761 cable for signal wiring.
1794-TBN: Connect each channel signal return to odd-numbered
terminals on row (C) as indicated in the
1794-IF2XOF2I Input/Output Module
table.
3. Connect any signal wiring shields to functional ground as near as possible
to the module.
1794-TB3T or 1794-TB3TS only: Connect to earth ground terminals
C-39…C-46.
4. Connect the +V DC power to terminal 34 on the 34…51 row (C) and -V
common/return to terminal 16 on the B row.
5. If daisychaining power to the next terminal base, connect a jumper from
terminal 51 (+V DC) on this base unit to terminal 34 on the next base unit.
6. If continuing DC common (-V) to the next base unit, connect a jumper
from terminal 33 (common) on this base unit to terminal 16 on the next
base unit.
1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T and 1794-TB3TS Terminal Base
Wiring
1794-TBN Terminal Base Wiring
ATTENTION
To reduce susceptibility to noise, power analog modules and digital
modules from separate power supplies.
Wiring Connections for 1794-IF2XOF2I Input/Output Module
Channel
Signal Type
Label
Markings
1794-TB2, 1794-TB3, 1794-TB3S,
1794-TB3T, 1794-TB3TS
1794-TBN
Terminal
Shield (1794-TB3T,
1794-TB3TS)
Terminal
Input 0
Current
I0
A-0
C-39
B-0
Current
I0 ret
A-1
C-1
Voltage
V0
A-2
C-40
B-2
Voltage
V0 ret
A-3
C-3
Input 1
Current
I1
A-4
C-41
B-4
Current
I1 ret
A-5
C-5
Voltage
V1
A-6
C-42
B-6
Voltage
V1 ret
A-7
C-7
Output 0
Current
I2
A-8
C-43
B-8
Current
I2 ret
A-9
C-9
Voltage
V2
A-10
C-44
B-10
Voltage
V2 ret
A-11
C-11
Output 1
Current
I3
A-12
C-45
B-12
Current
I3 ret
A-13
C-13
Voltage
V3
A-14
C-46
B-14
Voltage
V3 ret
A-15
C-15
-V DC common
1794-TB2, 1794-TB3, 1794-TB3S: Terminals B-16…B-33 are internally connected in the
terminal base unit.
1794-TBN: Terminals B-16 and B-33 are internally connected in the terminal base unit.
1794-TB3T, 1794-TB3TS: Terminals 16, 17, 19, 21, 23, 25, 27, 29, 31 and 33 are internally
connected in the terminal base unit.
+V DC power
1794-TB3, 1794-TB3S: Terminals 34…51 are internally connected in the terminal base unit.
1794-TB3T, 1794-TB3TS: Terminals 34, 35, 50 and 51 are internally connected in the terminal
base unit.
1794-TBN, 1794-TB2: Terminals 34 and 51 are internally connected in the terminal base unit.
Chassis ground
(shield)
1794-TB3T, 1794-TB3TS: Terminals 39…46 are internally connected to chassis ground.
Input Map
Dec
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Oct
17
16
15
14
13
12
11
10
7
6
5
4
3
2
1
0
Word 0
Analog value for input channel 0
Word 1
Analog value for input channel 1
Word 2
Read back output channel 0
Word 3
Read back output channel 1
Word 4
0
Real-time sample
Word 5
PU
FP
CF
0
Reserved
0
0
0
0
0
BD
DN
0
Word 6
0
0
0
0
P1
P0
0
0
0
0
V1
V0
W1
W0
U1
U0
Where:
PU = Power up inconfigured
FP = Field power off
CF = In configuration mode
BD = Calibration bad
DN = Calibration done
U = Under range for specified channel
W = Wire off current loop status for output channels 0 and 1
V = Over range for specified channel
P = Outputs holding in response to Q0 and Q1
Output Map
Dec
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Oct
17
16
15
14
13
12
11
10
7
6
5
4
3
2
1
0
Word 0
EN
S1
S0
0
0
0
0
0
0
0
0
0
0
0
0
0
Word 1
Analog output data – channel 0
Word 2
Analog output data – channel 1
Word 3
0
0
0
0
0
0
0
0
Input channel 1 filter
Input channel 0 filter
I
I
I
I
+
+
+
+
+
+
+
-
-
-
-
-
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16 17 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 50 51
45753
Row A
Row B
Row C
Current
input
Voltage
input
Current
output
device
Voltage
output
device
AC or DC
4-wire current
transmitter
DC only
3-wire
transmitter
Current only
2-wire output
device
DC only
3-wire output
device
Label placed at top of wiring area
Row A
Row B
Row C
1794-TB3S
+
+
+
I
+
+
I
+
+
-
-
-
-
-
16
34
1
3
5
7
9
11
13
15
51
0
2
4
6
8
10
12
14
33
45754
Even-numbered terminals 0...14
16
33
34
51
Row B
Row C
DC only
3-wire output
device
Current only
2-wire output
device
DC only
AC or DC
4-wire current
transmitter
Current
input
Voltage
input
Current
output
device
Voltage
output
device
3-wire
transmitter