
4
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.
76 54 32 1 0
110
12 11 10 9 8 7 6 5
1
= 5 Octal or 5 Decimal
01
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
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