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Configuring your module, Setting the input filter time, Input filter time specifications – Rockwell Automation 1794-IB16XOB16P_IB10XOB6 Flex I/O Input/ Output Module Installation Instructions User Manual

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Publication 1794-IN083B-EN-P - November 2004

Configuring Your Module

You configure your module by setting bits in the configuration word
(word 3)
1794-IB10XOB6

1794-IB16XOB16P.

Setting the Input Filter Time

To set the input filter time, set the associated bits in the output image
(complementary word) for the module.

For example, to increase the off-to-on filter time to 8ms for all inputs at
address rack 1, module group 0, in configuration word 3, set bits as shown
below.

Filter times are shown in the following table.

Input Filter Time

Specifications

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 1

Not used

I9

I8

I7

I6

I5

I4

I3

I2

I1

I0

Write 2

Not used

O
5

O
4

O
3

O
2

O
1

0
O

Write 3

Not used

FT

Not used

Where: I

=

Input

O = Output

FT = Input Filter Time for input channels

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 1

I
15

I
14

I
13

I
12

I
11

I
10

I9

I8

I7

I6

I5

I4

I3

I2

I1

I0

Write 2

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

Write 3

Not used

Input Filter FT
0-15

Where:

I = Input

O = Output

FT = Input Filter Time for all 16 inputs (0-15)

Bits

1

Description

02

01

00

Filter Time for Inputs

Off to On/On to Off

10

09

08

0

0

0

Filter Time 0

0.25ms

0

0

1

Filter Time 1

0.5ms

0

1

0

Filter Time 2

1.0ms

0

1

1

Filter Time 3

2.0ms

1

0

0

Filter Time 4

4.0ms

1

0

1

Filter Time 5

8.0ms

1

1

0

Filter Time 6

16.0ms

1

1

1

Filter Time 7

32.0ms

1 Use bits 00, 01 and 02 for 1794-IB16XOB16P; use bits 08, 09 and 10 for

1794-IB10XOB6

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

FT = 0-15

1794-IB10XOB6 only
FT = 0-9

1794-IB16XOB16P

O:010

Dec.

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.

7

6

5

4

3

2

1

0

1

1

0

12

11

10

9

8

7

6

5

1

= 5 Octal or 5 Decimal

0

1

1794-IB16XOB16P

1794-IB10XOB6

= 5 Octal or 5 Decimal

Specifications

1794-IB10XOB6

1794-IB16XOB16P

Input

Number of Inputs

10, nonisolated, sinking

16, nonisolated, sinking

On-state Voltage

10V dc minimum
24V dc nominal
31.2V dc maximum

On-state Current

2.0mA minimum
8.0mA nominal at 24V dc
11.0mA maximum

2.0mA minimum
8.8mA nominal at 24V dc
12.1mA maximum

Off-state Voltage

5.0V dc maximum

Off-state Current

1.5mA minimum

Input Impedance

4.8K ohms

2.5K ohms

Indicators (field side
indication, customer
device driven)

10 yellow status indicators

16 yellow status indicators

Output

Number of Outputs

6, nonisolated, sourcing

16, (1 group of 16) nonisolated,
sourcing

On-state Voltage
Range

10V dc minimum
24V dc nominal
31.2V dc maximum

10V dc minimum
24V dc nominal
31.2V dc maximum
See Derating Curve below

Output Current
Rating

2A per output
10A per module maximum

0.5A per output
8A per module maximum

Off-state Voltage

31.2V maximum

On-state Current

1.0mA minimum per channel

2.0A maximum per channel

10A maximum per module

1.0mA minimum per channel

0.5A maximum per channel

8A maximum per module

Surge Current

4.0A for 50ms, repeatable every 2s

1.5A for 50ms, repeatable every 2s

Off-state Leakage

0.5mA maximum

On-state Voltage
Drop

1V dc @ 2A, 0.5V dc @ 1A
maximum

0.5V dc @ 1A maximum

Output Signal Delay

1

Off to on - 0.5ms maximum

On to Off - 1.0ms maximum

Indicators (field side
indication, logic
driven)

6 yellow status indicators

16 yellow status indicators

Isolation Voltage

Tested at 2121V dc for 1s between
user and system
No isolation between individual
channels

Input to backplane; Output to
backplane; Input channels to
output channels - - 1250V ac (rms)
isolation

Tested at 2121V dc for 1s between
user and system

No isolation between individual
channels

Flexbus Current

35mA

80mA

Power Dissipation

6.0W maximum @ 31.2V dc

7.0W maximum @ 31.2V dc

Thermal Dissipation

Maximum 20.3 BTU/hr @ 31.2V dc

Maximum 23.9 BTU/hr @ 31.2V dc

External dc power
Supply voltage

Voltage Range

Output Supply

Current

24V dc nominal
10 to 31.2V dc (includes 5% ac
ripple)
15mA @ 19.2V dc; 19mA @ 24V dc

8mA @ 10V dc; 25mA @ 31.2V dc

24V dc nominal
10 to 31.2V dc (includes 5% ac
ripple)
78mA @ 10V dc; 137mA @ 24V dc;

168mA @ 31.2V dc

Fusing

Module outputs are not fused.
Fusing is recommended. If fusing is
desired, you must supply external
fusing. Use SAN-O MQ4-3A or
Litteolfuse 235-003 fuses.

Outputs are electronically
protected