Specifications – Rockwell Automation 1794-IC16_OC16 FLEX I/O 48V dc Input and Output Modules Inst. Inst. User Manual

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Publication 1794-IN105A-EN-P - April 2004

Wiring Connections for the 1794-IC16 and 1794-OC16

1794-TB2, -TB3 and -TB3S Terminal Base Wiring for 1794-IC16
and -OC16

2 and 3-Wire Input Wiring for 1794-IC16

Configuring Your 48V dc Input Module, Cat. No. 1794-IC16

Image Table Memory Map for the 1794-IC16

Setting the Input Filter Time for the 1794-IC16

The 1794-IC16 has a built-in 1ms filter.You can increase the input filter time
(FT) for channels 00-15. To increase the filter time, set the corresponding bits
in the output image table (complementary word) for the module.(See table
below.)

For example, to set an additional filter time of 4ms for all 16 inputs of an -IC16
module at address rack 1, module agroup 0, set bits 00 thru05 as shown below.
The result will be a total filter time of 5ms.

Input Filter Time for the 1794-IC16

Actual filter time represents selected filter time plus 1ms.

Configuring Your 48V dc Output Module, Cat. No. 1794-OC16

Image Table Memory Map for the 1794-OC16

Specifications

1794-IC16

1794-OC16

Input

1794-TB3, -TB3S

Output

1794-TB2, -TB3,

-TB3S

Input

48V dc
Supply

Common

1

Output

Common

Input 0

A-0

C-35

B-17

Output 0

A-0

B-17

Input 1

A-1

C-36

B-18

Output 1

A-1

B-18

Input 2

A-2

C-37

B-19

Output 2

A-2

B-19

Input 3

A-3

C-38

B-20

Output 3

A-3

B-20

Input 4

A-4

C-39

B-21

Output 4

A-4

B-21

Input 5

A-5

C-40

B-22

Output 5

A-5

B-22

Input 6

A-6

C-41

B-23

Output 6

A-6

B-23

Input 7

A-7

C-42

B-24

Output 7

A-7

B-24

Input 8

A-8

C-43

B-25

Output 8

A-8

B-25

Input 9

A-9

C-44

B-26

Output 9

A-9

B-26

Input 10

A-10

C-45

B-27

Output 10

A-10

B-27

Input 11

A-11

C-46

B-28

Output 11

A-11

B-28

Input 12

A-12

C-47

B-29

Output 12

A-12

B-29

Input 13

A-13

C-48

B-30

Output 13

A-13

B-30

Input 14

A-14

C-49

B-31

Output 14

A-14

B-31

Input 15

A-15

C-50

B-32

Output 15

A-15

B-32

A = Input/output terminals

B = Common terminals

C = Power terminals (C-34 thru C-51 on -TB3 and -TB3S; C-34 and C-51 on the -TB2)

1 3-wire devices use input, supply and common. 2-wire devices use input and supply

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

Read

I
15

I
14

I
13

I
12

I
11

I
10

I9

I8

I7

I6

I5

I4

I3

I2

I1

I0

Write

Not used - set to 0

Input Filter FT1
12-15

Input Filter FT0

0-11

Where

I = Input

FT0 = Input filter time for inputs 0-11

FT1 = Input filter time for inputs 12-15

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

Inputs/Outputs

Commons

(1794-TB3 shown)

V COM

+V

Voltage

A

B

C

V COM

Connect +V dc power to terminal C-34
Connect V dc common to terminal B-16

Use B-33 and C-51 for daisychaining to the next terminal base unit

+V

(Terminals C-35 thru C-50 are not present on the 1794-TB2)

?

??

??

A

B

C

0-15

16-33

34-51

= Sink Input

= Common

= +V dc

2-Wire Device

(Sourcing Output)

3-Wire Device

(Sourcing Output)

A

B

C

Bits

Description

02

01

00

Filter Time - inputs 00-11

Selected

Filter Time

Actual Filter

Time

05

04

03

Filter Time - inputs 12-15

0

0

0

Filter Time 0 (Default)

256

µ

s

1256

µ

s

0

0

1

Filter Time 1

512

µ

s

1512

µ

s

0

1

0

Filter Time 2

1ms

2ms

0

1

1

Filter Time 3

2ms

3ms

1

0

0

Filter Time 4

4ms

5ms

1

0

1

Filter Time 5

8ms

9ms

1

1

0

Filter Time 6

16ms

17ms

1

1

1

Filter Time 7

32ms

33ms

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

Read

Not used - set to 0

Write

O
15

O
14

O
13

O
12

O
11

O
10

O
9

O
8

O
7

O
6

O
5

O
4

O
3

O
2

O
1

O
0

Where

O = Output

Specifications - 48V dc 16 Input Module, Cat. No. 1794-IC16

Number of Inputs

16 (1 group of 16), nonisolated, sinking

Module Location

Cat. No. 1794-TB3, and -TB3S

On-state Voltage

30V dc minimum
48V dc nominal
60V dc maximum

On-state Current

minimum

nominal

maximum

2.0mA @ 30V dc

5.0mA @ 48V dc

7.0mA @ 60V dc

Off-state Voltage

10V dc maximum

Off-state Current

1.5mA minimum

Nominal Input Impedance

10K ohms

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

FT = 12-15

FT = 0-11

1794-IC16

O:010

Dec.

1

0

0

7

6

5

4

3

FLL

I:000

00

Fill File
Source
Destination
Length

#O:010

1

Write FT to complement

of input module.

Write filter time on system startup.

2

1

0

= 44 Octal or 36 Decimal

0

1

0

1

0

0

1794-IC16

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