Rockwell / Allen-Bradley 1771 Series DC I/O Datasheet

Rockwell / Allen-Bradley 1771 Series DC I/O Datasheet
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1771 Digital I/O
DC Input and Output Modules
Product Data
Interfaces your ON/OFF devices to AllenBradley programmable
controllers within the 1771 Universal I/O structure. Allen-Bradley
digital dc I/O modules interface to ON/OFF devices such as limit
switches, pushbuttons, motor starters, pilot lights, and annunciators.
These modules are compatible with all current Allen-Bradley
programmable controllers. This saves on spare parts, system
engineering, inventory, and training costs.
Supports highpower operations. The dc solid-state family of digital
I/O modules meets requirements for applications from 5-125V dc.
These modules exhibit long life (20-100+ million operations).
Provides system protection and troubleshooting aids. The dc I/O
modules include electrical-optical isolation and filter circuits for
signal noise reduction. To help you troubleshoot your system,
module indicators are provided to show input or output status and
fuse-blown conditions.
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2
1771 Digital I/O DC Input and Output Modules
Overview
Understanding Digital I/O
Modules
Allen-Bradley offers a digital I/O product line consisting of three
families:
Family
AC Digital Input and Output Modules
DC Digital Input and Output Modules
Digital Relay Contact Output Modules
Document
1771-2.182
1771-2.180
1771-2.181
System Compatibility
Individual dc input and output module specification sheets show
compatibility and use of the data table for each.
Status Indicators
The front panel of each digital I/O dc module contains status
indicators. Each status indicator shows the ON/OFF condition of an
individual input or output. Some modules have an additional
indicator, such as Fuse-Blown. Refer to the individual module
specification sheets for more information.
Keying
Plastic keying bands shipped with each I/O chassis allow you to key
your I/O slots to accept only one type of module. You can key any
backplane connector in an I/O chassis to receive your module except
for the leftmost connector, which is reserved for adapter or
processor modules.
Power Supply Requirements
Digital modules receive power through the 1771 I/O chassis
backplane from the associated chassis power supply. Refer to the
individual module specifications for the current required from the
power supply (in mA) to operate the module. You should total the
current requirements for all the modules in the chassis to avoid
overloading the power supply or the I/O chassis backplane.
Module Placement Guidelines
Group your modules to minimize adverse effects from radiated
electrical noise and/or heat.
• Group analog input and low voltage dc modules away from ac
modules or high voltage dc modules to minimize electrical noise
interference.
• Place analog input modules and other I/O modules that are
sensitive to heat away from slot power supplies to minimize
adverse heat effects.
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1771 Digital I/O DC Input and Output Modules
3
Overview
Addressing Modes
Your Allen-Bradley processor can address its I/O in 2-slot, 1-slot or
1/2-slot I/O groups. You select the addressing method for the chassis
in which a processor or I/O adapter resides with the I/O chassis
backplane switch assembly. You make the selection for each chassis
independently, choosing one method of addressing for each chassis.
Fault Mode Selection
Some digital dc modules let you select last state or reset for input or
output failure configuration.
You select one of the two options by positioning a configuration plug
(jumper) on the edge of the printed circuit board. This plug is
independent of the last state switch on the I/O chassis backplane.
When the input module detects a fault, it’s input-image bits are put
into the state indicated by the jumper position. When the output
module detects a fault it’s outputs are put into the state indicated by
the jumper position. Refer to the Table below for the state of inputs
or outputs after a module detects a fault and jumper settings.
Jumper Settings and the State of Inputs or Outputs
If you want module inputs and outputs to:
Set jumper to:
Stay in their last state when a module
detects a fault
Reset to off when a module detects a fault
last state
(LS)
reset
For instructions on how to set the configuration jumper on those
modules that allow you to select the fault mode, refer to the
individual module specification sheets.
DC Input Modules
1771 digital dc input modules convert dc signals from user devices
to the appropriate logic level for use within the processor. Typical
input devices include:
•
•
•
•
•
proximity switches
limit switches
selector switches
float switches
pushbutton switches
Allen-Bradley dc input modules are available with a wide range of
input terminals per module. The table below lists the Allen-Bradley
dc digital input modules. It also shows the image bits per module
and addressing modes you can use with the I/O chassis and chassis
compatibility for each input module.
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4
1771 Digital I/O DC Input and Output Modules
Overview
Data Table Usage and I/O Chassis Compatibility for
DC Input Modules
Module Type and
Catalog Number
DC Input Modules
1771IB Module
1771-IBD Module
1771IBN Module
1771IC Module
1771ICD Module
1771IG Module
1771IGD Module
1771IH Module
1771IQ Module
1771-IQ16 Module
1771IT Module
1771IV Module
1771IVN Module
Module
Series
A
B
C
A
B
A
A
A
B
B
A
A
C
Use of Data Table
Addressing
Input
Output
Image Bits Image Bits 1/2-Slot
1-Slot
8
16
32
8
16
8
16
8
8
16
8
8
32
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
R
Y
Y
Y
Y
Y
Y
Y
Y
Y
R
2-Slot
Compatible
Chassis
Y
R
N
Y
R
Y
R
Y
Y
R
Y
Y
N
A, B
B
B
A, B
B
A, B
B
A, B
A, B
B
A, B
A, B
B
A = Compatible with superseded chassis (1771A1, A2, A4)
B = Compatible with current chassis (1771A1B, A2B, A3B, A3B1, A4B, -AM1, -AM2)
Y = Compatible without restriction
R = Conditional module placement; you must use an input module and an output module in two adjacent slots (even/odd) of the I/O chassis
beginning with slot 0.
N = Not compatible
Input Filtering
Input filtering limits the effect of voltage transients caused by
contact bounce and/or electrical noise. If not filtered, voltage
transients could produce false data.
Backplane circuits, module logic circuits, and the rest of the system
are protected from possible damage due to electrical transients by
opto-electrical isolation.
Certain modules allow you to set input filter time jumpers. Refer to
the individual module specifications for more information.
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1771 Digital I/O DC Input and Output Modules
5
Overview
DC Output Modules
1771 digital dc output modules control the ON/OFF status of dc user
devices. Typical output devices include:
• motor starters
• solenoids
• indicators
The Table below lists the Allen-Bradley dc digital output modules,
their image bits per module, the addressing modes you can use with
I/O chassis and chassis compatibility for each output module.
Data Table Usage and I/O Chassis Compatibility for
DC Output Modules
Module Type and
Catalog Number
DC Output Modules
1771OB Module
1771OBD Module
1771OBN Module
1771OC Module
1771OG Module
1771OGD Module
1771OQ Module
1771-OQ16 Module
1771OVN Module
Module
Series
C
C
B
C
A
B
B
B
B
Use of Data Table
Addressing
Input
Output
Image Bits Image Bits 1/2-Slot
1-Slot
8
16
32
8
8
16
8
16
32
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
R
Y
Y
Y
Y
Y
R
2-Slot
Compatible
Chassis
Y
R
N
Y
Y
R
Y
R
N
A, B
B
B
A, B
A, B
B
A, B
B
B
A = Compatible with superseded chassis (1771A1, A2, A4)
B = Compatible with current chassis (1771A1B, A2B, A3B, A3B1, A4B, -AM1, -AM2)
Y = Compatible without restriction
R = Conditional module placement; you must use an input module and an output module in two adjacent slots (even/odd) of the I/O chassis
beginning with slot 0.
N = Not compatible
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6
1771 Digital I/O DC Input and Output Modules
Overview
Surge Suppression
Most output modules have internal clamping diodes to protect the
output transistors from high voltage transients.
Important:
We recommend that you use an additional suppression
device if an output module is being used to control an
inductive device such as:
• relays
• solenoids
• motor starters
• motors
and is in series with or parallel to a “hard contact”
such as:
• pushbuttons • selector switches
By adding a suppression device directly across the coil of an
inductive device, you’ll prolong the life of the switch contacts. The
diagram below shows an output module with a suppression device.
+dc
snubber
A
O
1
2
3
4
5
6
7
B
12346-I
The most important factor in selecting a suppression device is the
impedance characteristic. Thus, no single suppression device can be
recommended for every possible load.
Fuses
The outputs on most modules are fused to protect module circuitry
from overload. Some module outputs are individually fused and
some modules have one fuse for all module circuits.
Fused Wiring Arm Information
The optional Fused Wiring Arm (1771-WHF or -WHFB) provides
fuse protection for each output. It also allows simple fuse
replacement without removing the wiring arm from the I/O chassis.
You can use this wiring arm as an alternative to the 1771-WH Wiring
Arm.
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1771 Digital I/O DC Input and Output Modules
7
Overview
Replacement Fuse Kits
Allen-Bradley provides optional fuse kits for output modules. Refer
to the Table below for descriptions and usage.
Use with:
Kit Catalog Number
8point output modules
1771FC
16point output modules using the
nonfused 1771WH field wiring
arm
Kit Contents
5 each of the following:
125 Volt, 2A
250 Volt, 2A Slow Blow
250 Volt, 2A Normal Blow
25 Volt, .032A
5 each of the following:
125 Volt, 2A
250 Volt, 2A Slow Blow
250 Volt, 2A Normal Blow
25 Volt, .032A
1771WHF Field Wiring Arm
1771FD
8 2AG 3A fuses; 2 fuse holders
1771WHFB Field Wiring Arm
1771FD2
8 2AG 1.5A fuses; 2 fuse holders
Compliance to
European Union Directives
If this product has the CE mark it is approved for installation within
the European Union and EEA regions. It has been designed and
tested to meet the following directives.
EMC Directive
This product is tested to meet Council Directive 89/336/EEC
Electromagnetic Compatibility (EMC) and the following standards,
in whole or in part, documented in a technical construction file:
• EN 50081-2EMC – Generic Emission Standard, Part 2 –
Industrial Environment
• EN 50082-2EMC – Generic Immunity Standard, Part 2 –
Industrial Environment
This product is intended for use in an industrial environment.
Low Voltage Directive
This product is tested to meet Council Directive 73/23/EEC
Low Voltage, by applying the safety requirements of EN 61131–2
Programmable Controllers, Part 2 – Equipment Requirements and
Tests.
For specific information required by EN 61131-2, see the appropriate
sections in this publication, as well as the following Allen-Bradley
publications:
• Industrial Automation Wiring and Grounding Guidelines For
Noise Immunity, publication 1770-4.1
• Guidelines for Handling Lithium Batteries, publication AG-5.4
• Automation Systems Catalog, publication B111
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8
1771 Digital I/O DC Input and Output Modules
Overview
Agency Certification
Individual discrete I/O modules can also comply with various other
agency requirements when product or packaging is so marked.
Agency Certification
• CSA certified
(when product or packaging is • CSA Class I, Division 2, Groups A, B, C, D certified
marked)
• UL listed
• CE marked for all applicable directives
Associated Publications
Each input and output module ships with an installation instruction
sheet. Refer to the table below for a list of these publications.
Module Type
DC Input Modules
1771IB Module
1771-IBD Module
1771IBN Module
1771IC Module
1771ICD Module
1771IG Module
1771IGD Module
1771IH Module
1771IQ Module
1771-IQ16 Module
1771IT Module
1771IV Module
1771IVN Module
Where to Look
Installation
Instructions
1771-2.4
1771-2.75
1771-5.28
1771-2.174
1771-5.29
1771-2.9
1771-5.22
1771-2.8
1771-2.24
1771-2.191
1771-2.22
1771-2.25
1771-5.35
Module Type
DC Output Modules
1771OB Module
1771OBD Module
1771OBN Module
1771OC Module
1771OG Module
1771OGD Module
1771OQ Module
1771-OQ16 Module
1771OVN Module
Installation
Instructions
1771-2.3
1771-2.76
1771-5.34
1771-2.175
1771-2.177
1771-2.176
1771-2.92
1771-2.192
1771-5.36
The following table shows you where to go in this publication for the
specifications, wiring, and application information specific to each
input and output module.
Module Type
DC Input Modules
1771IB Module
1771-IBD Module
1771IBN Module
1771IC Module
1771ICD Module
1771IG Module
1771IGD Module
1771IH Module
1771IQ Module
1771-IQ16 Module
1771IT Module
1771IV Module
1771IVN Module
Refer to:
page 9
page 11
page 13
page 15
page 17
page 19
page 21
page 23
page 25
page 27
page 29
page 31
page 33
Module Type
Refer to:
DC Output Modules
1771OB Module
1771OBD Module
1771OBN Module
1771OC Module
1771OG Module
1771OGD Module
1771OQ Module
1771-OQ16 Module
1771OVN Module
page 35
page 37
page 39
page 41
page 43
page 45
page 47
page 49
page 51
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Index
DC Input Module (Cat. No. 1771IB) . . . . . . . . . . . . . . . . . .
10
DC Input Module (Cat. No. 1771IB) . . . . . . . . . . . . . . . . . .
9
DC Input Module (Cat. No. 1771IBD Series B) . . . . . . . . . .
12
DC Input Module (Cat. No. 1771IBD Series B) . . . . . . . . . .
11
DC Input Module (Cat. No. 1771IBN Series C) . . . . . . . . . .
14
DC Input Module (Cat. No. 1771IBN Series C) . . . . . . . . . .
13
DC Input Module (Cat. No. 1771IC) . . . . . . . . . . . . . . . . . .
16
DC Input Module (Cat. No. 1771IC) . . . . . . . . . . . . . . . . . .
15
DC Input Module (Cat. No. 1771ICD Series B) . . . . . . . . . .
18
DC Input Module (Cat. No. 1771ICD Series B) . . . . . . . . . .
17
TTL Input Module (Cat. No. 1771IG) . . . . . . . . . . . . . . . . .
20
TTL Input Module (Cat. No. 1771IG) . . . . . . . . . . . . . . . . .
19
DC Input Module (Cat. No. 1771IGD) . . . . . . . . . . . . . . . . .
22
DC Input Module (Cat. No. 1771IGD) . . . . . . . . . . . . . . . . .
21
DC Input Module (Cat. No.1771IH) . . . . . . . . . . . . . . . . . . .
24
DC Input Module (Cat. No.1771IH) . . . . . . . . . . . . . . . . . . .
23
DC Input Module (Cat. No. 1771IQ Series B) . . . . . . . . . . .
26
DC Input Module (Cat. No. 1771IQ Series B) . . . . . . . . . . .
25
DC Input Module (Cat. No. 1771IQ16 Series B) . . . . . . . . .
28
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ii
Table of Contents
DC Input Module (Cat. No. 1771IQ16 Series B) . . . . . . . . .
27
DC Input Module (Cat. No. 1771IT) . . . . . . . . . . . . . . . . . .
30
Fast Response DC Input Module (Cat. No. 1771IT) . . . . . .
29
DC Input Module (Cat. No. 1771IV) . . . . . . . . . . . . . . . . . .
32
DC Input Module (Cat. No. 1771IV) . . . . . . . . . . . . . . . . . .
31
DC Input Module (Cat. No. 1771IVN Series C) . . . . . . . . . .
34
DC (1030V) Input Module (Cat. No. 1771IVN Series C) . . .
33
DC Output Module (Cat. No. 1771OB Series C) . . . . . . . . .
36
DC Output Module (Cat. No. 1771OB Series C) . . . . . . . . .
35
DC Output Module (Cat. No. 1771OBD Series C) . . . . . . . .
38
DC Output Module (Cat. No. 1771OBD Series C) . . . . . . . .
37
DC Output Module (Cat. No. 1771OBN Series B) . . . . . . . .
40
DC Output Module (Cat. No. 1771OBN Series B) . . . . . . . .
39
DC Output Module (Cat. No. 1771OC Series C) . . . . . . . . .
42
DC Output Module (Cat. No. 1771OC Series C) . . . . . . . . .
41
DC Output Module (Cat. No. 1771OG) . . . . . . . . . . . . . . . .
44
DC Output Module (Cat. No. 1771OG) . . . . . . . . . . . . . . . .
43
DC Output Module (Cat. No. 1771OGD Series B) . . . . . . . .
46
DC Output Module (Cat. No. 1771OGD Series B) . . . . . . . .
45
DC Output Module (Cat. No. 1771OQ Series B) . . . . . . . . .
48
DC Output Module (Cat. No. 1771OQ Series B) . . . . . . . . .
47
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Table of Contents
iii
DC Output Module (Cat. No. 1771OQ16 Series B) . . . . . . .
50
DC Input Module (Cat. No. 1771OQ16 Series B) . . . . . . . .
49
DC Output Module (Cat. No. 1771OVN Series B) . . . . . . . .
52
DC Output Module (Cat. No. 1771OVN Series B) . . . . . . . .
51
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
53
Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
55
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
55
Engineering and Field Services . . . . . . . . . . . . . . . . . . . . .
55
Technical Training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
55
Repair and Exchange Services . . . . . . . . . . . . . . . . . . . . .
55
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1771 Digital I/O DC Input and Output Modules
9
DC Input Module (Cat. No. 1771IB)
Simplified Schematic
1N4448
System
Circuitry
3k
+dc
Input
Opto
Isolation
3.6k
3.9V
3.6k
Input
Indication
LED
(field)
1k
dc
common
18551
Application Notes
Device Compatibility. The 1771IB module is compatible with the
following two and threewire devices:
• DC proximity switches
• photoelectric sensors
• pushbuttons
• limit switches
• float switches
• selector switches
Connection to Output Module. You can directly drive terminals
on a dc (1224V) Input Module (Cat. No. 1771IB) from terminals
on the following modules:
DC (1060V) Output module (Cat. No. 1771OBD)
DC (24V) Output module (Cat. No. 1771OB)
Use the same power source to power both modules to
ensure that ground is at the same potential.
Status Indicators. The front panel of your module contains eight
red status indicators which provide field side indication of
individual inputs. When a red indicator is illuminated, voltage is
present on the terminal. The module transfers this information to
the backplane for the processor to read.
Connection Diagram (Three-Wire Devices)
See Applicable Codes and Laws
Not used
A
Input 0
0
Input 1
1
Input 2
2
Input 3
3
Input 4
4
Input 5
5
Input 6
6
Input 7
7
dc common
+
+
+
dc
Power Supply
-
B
(Actual wiring runs in this direction.)
12231-I
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10
1771 Digital I/O DC Input and Output Modules
DC Input Module (Cat. No. 1771IB)
Connection Diagram (Two-Wire Devices)
Specifications (Cat. No. 1771IB)
Inputs per Module
8
Module Location
1771 I/O chassis
(See Applicable Codes and Laws)
Input Voltage Range
10 to 27V dc
Nominal Input Current
8mA at 12V dc
24mA at 24V dc
Not used
A
Off-state Current (minimum)
3.0mA @ 7V dc
Input 0
0
Off-state Voltage (maximum)
7.0V dc
Input 1
1
2
10V dc
Input 2
Input Impedance
1 to 2K ohms maximum (on-state)
2 to 3K ohms maximum (off-state)
Input 3
3
Input Signal Delay
Low to high propagation delay 12ms +7ms
High to low propagation delay 20ms +7ms
Input 4
4
Power Dissipation
5.7 Watts (max.), 0.4 Watts (min.)
On-state Voltage (minimum)
Thermal Dissipation
19.3 BTU/hr (max.), 1.4 BTU/hr (min.)
Backplane Current
74mA @ 5V dc +5%
Isolation Voltage
1500V ac rms
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Conductors
Wire Size
Category
Keying
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instruction
1
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
Input 5
5
Input 6
6
Input 7
7
dc Common
B
+
dc
Power Supply
-
11833-I
(Actual wiring runs in this direction.)
3/64 inch (1.2mm) insulation maximum
21
Between 4 and 6
Between 14 and 16
Catalog Number 1771WA
Status Indicators
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
17712.4
You use this conductorcategory information for planning conductor routing as described in the
systemlevel installation manual.
Not used
Input 0
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
Status Indicators
12232-I
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1771 Digital I/O DC Input and Output Modules
11
DC Input Module (Cat. No. 1771IBD Series B)
Simplified Schematic
Isolated
+ DC Supply
1.2k
750Ω
+dc
Input
Opto
Isolation
System
Circuitry
Logic
Circuitry
.1µF
464Ω
Input
Indication
LED
(logic)
dc
common
18559
Application Notes
Connection Diagram (Two-Wire Devices)
Device Compatibility. The 1771IBD module must be used in a
series B 1771 I/O chassis. Make sure no other input module or
singleslot block transfer module is placed in the same module
group when using 2slot addressing. Any discrete output module
may be used within the same module group.
Connection to Output Modules. You can directly drive terminals
on a DC (10-30V) Input Module (cat. no. 1771IBD) from termi
nals on the following modules:
- DC (10-60V) Output module (cat. no. 1771OBD)
- DC (24V) Output module (cat. no. 1771OB)
Setting the Fault Mode. You may select one of two input-failure
configurations (last state or reset) by positioning a configuration
plug on the top edge of the printed circuit board. This configuration
plug is independent of the last state switch on the I/O chassis
backplane.
Fault Mode Selection Plug
Top edge of circuit board
(shown in last state position)
RESET
LS
10596-I
Status Indicators. The front panel contains one green module
active indicator, and 16 red status indicators. The 1771IBD
performs diagnostics in a handshaking mode when first powered
up. Upon successful completion of the diagnostics, the green
module active indicator lights. It turns off if a fault occurs in the
data paths or the opto-isolators. If a module fault occurs, the
module resets its inputs or sets them to last state, depending on
the fault mode selection. The module active indicator must be on
to properly interpret the red status indicators. The red status
indicators are provided for customerside indication of individual
inputs.
Not used
Not used
Not used
Not used
Input 00
Input 01
Input 02
Input 03
Input 04
Input 05
Input 06
Input 07
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
Input 17
dc Common
(See applicable codes and laws.)
A
B
C
D
00
01
02
03
04
05
06
07
10
11
12
13
14
15
16
+
dc
Power Supply
-
17
E
(Actual wiring runs in this direction.)
10597-I
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12
1771 Digital I/O DC Input and Output Modules
DC Input Module (Cat. No. 1771IBD Series B)
Specifications (Cat. No. 1771IBD/B)
Inputs per Module
16
Module Location
17711-A1 thru A4 or later I/O chassis and
1771-AM1, -AM2 chassis
Input Voltage Range
10 to 30V dc
Minimum Input Current
4mA at 10V dc
12mA at 30V dc
Minimum Offstate Current
2.0mA @ 5V dc
Maximum Offstate Voltage
6V dc
Minimum Onstate Voltage
10V dc
Input Impedance
2.5K ohms maximum
Input Signal Delay
Low to high propagation delay 1.3ms +0.1ms
High to low propagation delay 1.3ms +0.1ms
Power Dissipation
6.0 Watts (max.), 1.3 Watts (min.)
Thermal Dissipation
20.3 BTU/hr (max.), 4.3 BTU/hr (min.)
Backplane Current
250mA @ 5V dc +5%
Isolation Voltage
1500V ac rms
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Conductors Wire Size
Category
Keying
Field Wiring Arm
Connection Diagram (Three-Wire Devices)
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
21
(See applicable codes and laws.)
Not used
Not used
Not used
Not used
Input 00
Input 01
Input 02
Input 03
Input 04
Input 05
Input 06
Input 07
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
Input 17
dc Common
A
B
C
D
00
+
01
02
03
04
+
05
06
07
10
+
11
12
dc
Power Supply
13
14
15
-
16
17
E
Between 10 and 12
Between 16 and 18
Standard
Optional
Wiring Arm Screw Torque
Agency Certification
(when product or packaging
is marked)
Installation Instructions
Catalog Number 1771WH
Cat. No. 1771WHF (fused 3A)
Cat. No. 1771WHFB (fused 1.5A)
10598-I
(Actual wiring runs in this direction.)
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
Status Indicators
17712.75
1
You use this conductorcategory information for planning conductor routing as
described in the
systemlevel installation manual.
Module Active Indicator (green)
ACTIVE
00 10
01 11
02 12
03 13
04 14
05 15
06 16
07 17
00 to 17 Status Indicators (red)
10599-I
Publication 17712.180 - July 1996
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1771 Digital I/O DC Input and Output Modules
13
DC Input Module (Cat. No. 1771IBN Series C)
Simplified Schematic
Input
Indication
LED
(logic)
System
Circuitry
3.6k
Input
Filter
Opto
Isolation
0.1 µF
Input
3.9k
680
dc common
1N4007
18581
Application Notes
Device Compatibility. The 1771IBN dc input mod
ule has sinking inputs and requires source outputs.
A sink input provides a path to ground and a source
output provides a positive voltage path. You must
use this module in a series B 1771 I/O chassis. Do
not place this module in the same I/O chassis as the
1771IX thermocouple module. You can use this
module in the same chassis as the 1771IXE ther
mocouple module.
Connection Diagram
2-Wire
Devices
+
dc
Supply
-
Connection to Output Modules. The sinking in
puts on this module can be driven directly by the
sourcing outputs of the DC (1030V) Output Mod
ule (cat. no. 1771-OBN).
Status Indicators. The front panel of the module
contains 32 status indicators. These indicators are
provided for system logic side indication of individu
al inputs.
(See applicable codes and laws.)
DC Common (-)
+
+
3-Wire
Devices
dc
Supply
+
-
Input 1
Input 3
Input 5
Input 7
dc Common (-)
Input 11
Input 13
Input 15
Input 17
dc Common (-)
Input 1
Input 3
Input 5
Input 7
dc Common (-)
Input 11
Input 13
Input 15
Input 17
dc Common (-)
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
Input 0
Input 2
Input 4
Input 6
dc Common
Input 10
Input 12
Input 14
Input 16
dc Common
Input 0
Input 2
Input 4
Input 6
dc Common
Input 10
Input 12
Input 14
Input 16
dc Common
Note: Terminals on the left are even num
bered (2 thru 40) , and terminals on the
right are odd numbered (1 thru 39).
(Actual wiring runs in this direction.)
12233-I
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14
1771 Digital I/O DC Input and Output Modules
DC Input Module (Cat. No. 1771IBN Series C)
Status Indicators
Specifications (Cat. No. 1771IBN/C)
Inputs per module
32
Module Location
1771A1B thru A4B or later I/O Chassis
Input Voltage Range
10 to 30V dc
Nominal Input Current
4.5mA @ 10V
Minimum Off-state Current
1.7mA @ 5V dc
Maximum Off-state Voltage
5V dc
Minimum Onstate Voltage
10V dc
Input Impedance
2.2K
Input Signal Delay
Low to high propagation: 6ms(+2ms)
High to low propagation: 6ms(+2ms)
Power Dissipation
15.6W (max); 1.5W (min)
Thermal Dissipation
53.3 BTU/hr (max); 5.1 BTU/hr (min)
Backplane Current
280mA @ 5V dc maximum
Isolation Voltage
Conductors
Category
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
Keying
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instructions
00 10
01 11
02 12
03 13
04 14
05 15
06 16
07 17
Status Indicators (red)
12234-I
1500V ac rms
14 gauge (2mm2) stranded (max)2
3/64 inch (1.2mm) insulation (max)
11
Wire Size
00 10
01 11
02 12
03 13
04 14
05 15
06 16
07 17
Between 14 and 16
Between 18 and 20
Sample Connection Diagram Driving a 1771IBN Module with a
1771OBN Module
DC Output Module
Cat. No. 1771OBN
1771WN
DC Input Module
Cat. No. 1771IBN
+dc
10-30V dc
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
17715.28
1You use this conductorcategory information for planning conductor routing as
described in the systemlevel installation manual.
2 14 gauge wire connected to all terminals may not allow the cover on the field wiring arm to close.
A smaller gauge wire may be used.
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
dc Common
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
(Actual wiring runs in this direction.)
12265-I
Publication 17712.180 - July 1996
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1771 Digital I/O DC Input and Output Modules
15
DC Input Module (Cat. No. 1771IC)
Simplified Schematic
1N4448
System
Circuitry
20k
Input
Opto
Isolation
13k
13k
3.9V
Input
Indication
LED
(field)
1k
dc
common
18552
Application Notes
Device Compatibility. The 1771IC module is compatible with
the following two and threewire devices:
• dc proximity switches
• photoelectric sensors
• pushbuttons
• limit switches
• float switches
• selector switches
The offstate leakage current of your threewire devices should
not exceed 4mA.
Connection to Output Modules. You can directly drive a
terminal on a DC (48V) Input module (Cat. No. 1771IC) from a
terminal on the following modules:
• DC (1060V) Output Module (Cat. No. 1771OBD)
Connection Diagram (TwoWire Devices)
(See Applicable Codes and Laws)
Not used
Input 0
Input 1
Input 2
A
Input 3
3
Input 4
4
Input 5
5
Input 6
6
Input 7
dc Common
7
0
1
2
+
dc
Power Supply
-
B
• DC (4253V) Output Module (Cat. No. 1771OC)
Use the same power source to power both modules to ensure that
ground is at the same potential.
Status Indicators. The front panel of your module contains
eight status indicators. The status indicators are provided for
field side indication of individual inputs. When a red indicator is
illuminated, voltage is present on the terminal. The module
transfers this information to the backplane for the processor to
read.
(Actual wiring runs in this direction.)
12235-I
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16
1771 Digital I/O DC Input and Output Modules
DC Input Module (Cat. No. 1771IC)
Status Indicators
Specifications (Cat. No.1771IC)
Inputs per Module
8
Module Location
1771 I/O chassis
Input Voltage Range
42 to 56V dc
Nominal Input Current
9mA at 48V dc
Maximum Off-state Current
4.0mA
Maximum Off-state Voltage
22.0V dc
Minimum On-state Voltage
42V dc
Input Impedance
4.5 to 5.5K ohms maximum (on-state)
7 to 8K ohms maximum (off-state)
Input Signal Delay
Low to high propagation delay 15ms +7ms
High to low propagation delay 20ms+7ms
Power Dissipation
12.7 BTU/hr (max.), 1.4 BTU/hr (min.)
Backplane Current
74mA @ 5V dc +5%
Isolation Voltage
Wire Size
Category
Keying
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
1
12235-I
1500V ac rms
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Installation Instructions
Status Indicators
3.7 Watts (max.), 0.4 Watts (min.)
Thermal Dissipation
Conductors
Not used
Input 0
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
21
Between 4 and 6
Between 16 and 18
Catalog Number 1771WA
Sample Connection Diagram Driving a 1771IC Module with a
1771OC Module
DC Output Module
Cat. No. 1771OC
DC Input Module
Cat. No. 1771IC
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
17712.174
You use this conductorcategory informatin for planning conductor routing as described in the
systemlevel installation manual.
+dc
42-53V dc
Output 0
0
Output 1
1
1
Output 2
2
2
Not used
Input 0
Input 1
Input 2
Output 3
3
3
Input 3
Output 4
4
4
Output 5
5
5
Input 4
Input 5
Output 6
6
6
Input 6
Output 7
7
7
dc Common
B
B
+dc
A
A
0
dc Common
(Actual wiring runs in this direction.)
12236-I
Publication 17712.180 - July 1996
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Input 7
dc Common
1771 Digital I/O DC Input and Output Modules
17
DC Input Module (Cat. No. 1771ICD Series B)
Simplified Schematic
Isolated
+ DC Supply
1N4448
3.32k
System
Circuitry
Opto
Isolation
5.62k
Input
Logic
Circuitry
.1µF 1N4448
909
Input
Indication
LED
(logic)
dc
Common
18559
Connection Diagram (TwoWire Devices)
Application Notes
Device Compatibility. This module must be used with a
series B or later 1771 I/O chassis. Make sure no other input module
or singleslot block transfer module is placed in the same module
group when using 2slot addressing.
Connection to Output Modules. Terminals on a dc Input Module
(Cat. No. 1771ICD) may be directly driven from terminals on dc
Output Modules (Cat. Nos. 1771OBD, 1771OC and 1771OB).
Setting the Fault Mode. You may select one of two input-failure
configurations (last state or reset) by positioning a configuration plug
on the top edge of the printed circuit board. This configuration plug is
independent of the last state switch on the I/O chassis backplane.
Fault Mode Selection Plug
Top edge of circuit board
(shown in last state position)
RESET
LS
10596-I
Status Indicators. The front panel contains one green module active
indicator and 16 status indicators. The 1771ICD performs diagnostics
in a handshaking mode when first powered up. Upon successful
completion of the diagnostics, the green module active indicator lights.
It turns off if a fault occurs in the data paths or the optoisolators. If a
module fault occurs, the module resets its inputs or sets them to last
state, depending on the fault mode selection. The module active
indicator must be on to properly interpret the red status indicators. The
red status indicators are provided for system logic side indication of
individual inputs.
Not used
Not used
Not used
Not used
Input 00
Input 01
Input 02
Input 03
Input 04
Input 05
Input 06
Input 07
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
Input 17
dc Common
A
B
C
D
00
01
02
03
04
05
06
07
10
11
+
12
13
dc
Power Supply
14
15
16
-
17
E
(Actual wiring runs in this direction.)
(See applicable codes and laws.)
12236-I
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18
1771 Digital I/O DC Input and Output Modules
DC Input Module (Cat. No. 1771ICD Series B)
Status Indicators
Specifications (Cat. No. 1771ICD/B)
Inputs per Module
16
Module Location
1771-A1B thru -A4B or later I/O chassis
Input Voltage Range
Minimum Input Current
20 to 60V dc
2mA at 20V dc; 6mA at 60V dc
Minimum Off-state Current
1.2mA @ 12V dc
Maximum Off-state Voltage
12V dc
Minimum On-state Voltage
20V dc
Input Impedance
10K ohms maximum
Input Signal Delay
Low to high propagation delay 6ms( +2ms)
High to low propagation delay 20ms (+1ms)
Power Dissipation
5.9 Watts (max.), 1.3 Watts (min.)
Thermal Dissipation
19.9 BTU/hr (max.), 4.3 BTU/hr (min.)
Backplane Current
250mA @ 5V dc +5%
Isolation Voltage
Wire Size
Category
Keying
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instructions
1
ACTIVE
00 10
01 11
02 12
03 13
04 14
05 15
06 16
07 17
00 to 17 Status Indicators
(red)
12237-I
1500V ac rms
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Conductors
Module Active Indicator
(green)
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
11
Sample Connection Diagram Driving a 1771ICD Module with a
DC Input Module
1771OC Module
Cat. No. 1771ICD
Between 10 and 12
Between 18 and 20
A
Catalog Number 1771WH
• CSA certified
• CSA Class I, Division 2 Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
17715.29
You use this conductorcategory information for planning conductor routing as described in
the systemlevel installation manual.
B
DC Output Module
Cat. No. 1771OC
79 inchpounds
C
42-53V dc
+dc
A
Output 0
O
D
00
01
02
03
04
Output 1
1
Output 2
2
06
Output 3
3
07
Output 4
4
Output 5
5
12
Output 6
6
14
Output 7
7
dc Common
05
10
11
13
15
16
8
17
E
Not used
Not used
Not used
Not used
Input 00
Input 01
Input 02
Input 03
Input 04
Input 05
Input 06
Input 07
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
Input 17
dc Common
dc
Return
(Actual wiring runs in this direction.)
12238-I
Publication 17712.180 - July 1996
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1771 Digital I/O DC Input and Output Modules
19
TTL Input Module (Cat. No. 1771IG)
Simplified Schematic
Customer
+5V dc
Supply
1k
System
Circuit
Input
Filter
TTL
Input
Opto
Isolation
74132
Customer
Common
dc Supply
Input
Indication
LED
(logic)
Application Notes
18553
Connection Diagram
Device Compatibility. You can use any TTL device
that meets the output logic level specification of
-0.2V dc to +0.8V dc (low), and 2.0V dc to 5.25V dc
(high).
This module contains input filtering to limit the
effects of voltage transients caused by contact
bounce and/or radiated electrical noise. The delay
due to filtering is nominally 1ms.
For maximum noise immunity, the output of the TTL
device that is driving the input should have a pullup
resistor of 1k ohm (typical). If you add a pullup
resistor, be sure the TTL device maintains the low
state requirement of -0.2 V dc to +0.8V dc with the
increased load.
Connection to Output Modules. Input terminals
of the TTL Input Module may be directly driven by
outputs of the TTL Output Module (Cat. No.
1771OG).
Status Indicators. The front panel contains eight
indicator lights. Each indicator lights when its
corresponding input terminal senses TTL voltages in
the true state. Indicators may appear dim during
rapid pulsing of input signals.
Customer
Power Supply
+5V dc
(See applicable codes and laws.)
-
+
+5V dc
A
Input 0
O
Input 1
1
Input 2
2
Input 3
3
Input 4
4
Input 5
5
Input 6
6
Input 7
7
dc Common
8
1
2
2
1
Ground cable shield at a single
chassis mounting bolt.
1 TTL Devices must have open-collector outputs.
2 Internal or external pull-up resistor (1K ohm typical).
(Actual wiring runs in this direction.)
10441-I
Module Application. You can select High = True" or
Low = True" logic operation using logic switches
located on the module.
Publication 17712.180 - July 1996
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20
1771 Digital I/O DC Input and Output Modules
TTL Input Module (Cat. No. 1771IG)
Specifications (Cat. No. 1771IG)
Inputs per Module
8
Module Location
Series A or B 1771 I/O chassis
Input Voltage Range
HIGH = TRUE
LOW = TRUE
Customer Current Sink Requirements
Customer Supply Voltage
Customer Supply Current per Module
Input Signal Delay
ON; 2.4 to 5.25V dc
OFF: -0.2 to +0.8V dc
ON: -0.2 to +0.8V dc
OFF: 2.4 to 5.25V dc
7mA (source per input)
0.8mA (sink per input)
5V dc (+0.25V)
50mV peak-to-peak ripple max.
500mA max.
Less than 1ms
Power Dissipation
3.3 Watts (max.), 0.6 Watts (min.)
Thermal Dissipation
11.3 BTU/hr (max.), 2.0 BTU/hr (min.)
Backplane Current
122mA max.
Isolation Voltage
1500V ac rms
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Conductors Wire Size
Cable
Category
Keying
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is marked)
Installation Instructions
1
Status Indicators
HIGH = TRUE indicator
Input 0
Input 1
Input 2
Input 3
Status Indicators
Input 4
Input 5
Input 6
Input 7
10442-I
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
Shielded (Belden 8761)
21
Between 4 and 6
Between 34 and 36
Catalog Number 1771WC
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
17712.9
You use this conductorcategory information for planning conductor routing as described in the
systemlevel installation manual.
Publication 17712.180 - July 1996
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1771 Digital I/O DC Input and Output Modules
21
DC Input Module (Cat. No. 1771IGD)
Simplified Schematic
Input
Indication
LED
(logic)
1N4448
1k
System
Circuitry
Customer
+5V dc
Supply
.5 Amp
Fuse
TTL
Input
Opto
Isolation
74LS132
MOV
14V dc
1N4448
Customer
Common
dc Supply
6V dc
18560
Application Notes
Device Compatibility. This module must be used in a
series B 1771 I/O chassis.You can use any TTL device that
meets the output logic level specification of -0.2V dc to
+0.8V dc (low), and 2.0V dc to 5.25V dc (high).This module
contains input filtering to limit the effects of voltage
transients caused by contact bounce and/or radiated
electrical noise. The delay due to filtering is nominally 50us.
For maximum noise immunity, the output of the TTL device
that is driving the input should have a pullup resistor of 1k
ohm (typical). If you add a pullup resistor, be sure the TTL
device maintains the low state requirement of -0.2V dc to
+0.8V dc with the increased load.
Connection to Output Modules. Input terminals of the
TTL input module (cat. no. 1771IGD) may be directly
driven by the outputs of a TTL output module (cat. no.
1771OGD). Connect the cable shield between modules at
one end only.
Status Indicators. The front panel contains 18 status
indicators. The green active indicator is on when the fuse
is good. The green bottom indicator, when on, indicates
you selected high-true logic. When off, it indicates you
selected low-true logic. Each of the 16 red status
indicators light when their corresponding input terminal
senses TTL voltages in the true state.
Connection Diagram
(See applicable codes and laws.)
+5V dc
+5V dc
+5V dc
+5V dc
Input 00
Input 01
Input 02
Input 03
Input 04
Input 05
Input 06
Input 07
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
Input 17
dc Common
Customer
Power Supply
+5V dc
+
A
B
C
D
00
01
02
03
04
05
06
07
10
11
12
13
1
2
2
1
14
15
16
17
E
Ground cable shield at a single
chassis mounting bolt.
1 TTL Devices must have open-collector outputs.
2 Internal or external pull-up resistor (1K ohm typical).
(Actual wiring runs in this direction.)
10450-I
Module Application. You can select High = True" or
Low = True" logic operation using logic switches
located on the module.
Publication 17712.180 - July 1996
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22
1771 Digital I/O DC Input and Output Modules
DC Input Module (Cat. No. 1771IGD)
Status Indicators
Specifications (Cat. No. 1771IGD)
Inputs per Module
16
Module Location
Series B 1771 I/O chassis
Input Voltage Range
HIGH = TRUE
LOW = TRUE
ON; 2.0 to 5.25V dc
OFF: -0.2 to +0.8V dc
ON: -0.2 to +0.8V dc
OFF: 2.0 to 5.25V dc
Customer Current Sink
Requirements
7mA maximum (source per input)
0.8mA maximum (sink per input)
Customer Supply Voltage
5.0V dc (+0.25V)
50mV peak-to-peak ripple max.
Customer Supply Current
per Module
380mA max.
Input Signal Delay
Less than 1ms
Power Dissipation
2.7 Watts (max.); 0.4 Watts (min.)
Thermal Dissipation
9.2 BTU/hr (max.); 1.4 BTU/hr (min.)
Backplane Current
130mA max.
Isolation Voltage
1500V ac rms
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Fuse
Conductors
Keying
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instructions
the
00 to 17 Status Indicators (red)
Positive Logic Indicator (green)
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
0.5A 250V normal blow
Wire Size
Cable
Category
1
Module Active Indicator (green)
ACTIVE
00 10
01 11
02 12
03 13
04 14
05 15
06 16
07 17
HIGH
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
Shielded (Belden 8761)
21
Between 16 and18
Between 24 and 26
Catalog Number 1771WH
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B,
C, D certified
• UL listed
• CE marked for all applicable directives
17712.178
You use this conductorcategory information for planning conductor routing as described in
systemlevel installation manual.
Publication 17712.180 - July 1996
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10451-I
1771 Digital I/O DC Input and Output Modules
23
DC Input Module (Cat. No.1771IH)
Simplified Schematic
9.1k
1N4448
Comparator
System
Circuitry
Input
Filter
3.9k
Input
Indication
LED
(field)
Opto
Isolation
3.9V
+dc
Input
2.2k
dc
common
18554
Application Notes
Connection Diagram (Two-Wire Devices)
Device Compatibility. The 1771IH module is compatible with the
following twowire devices:
• pushbuttons
• limit switches
• float switches
• selector switches
See Applicable Codes and Laws
Not used
A
The offstate leakage current of your twowire devices should not
exceed 1mA.
Input 0
0
Input 1
1
Connection to Output Modules. Inputs on the DC (2448V) Input
module can be directly driven by outputs on dc output modules (cat.
no. 1771OB, OBD, and OC).
Input 2
2
Input 3
3
Input 4
4
Input 5
5
Input 6
6
Input 7
7
dc Common
B
Status Indicators. The front panel contains 8 red status indicators.
The status indicators are provided for field side indication of individu
al inputs.
(Actual wiring runs in this direction.)
+
dc
Power
Supply
-
12239-I
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24
1771 Digital I/O DC Input and Output Modules
DC Input Module (Cat. No.1771IH)
Specifications (Cat. No. 1771IH)
Inputs per Module
8
Module Location
1771 I/O chassis
Input Voltage Range
24 to 48V dc
Nominal Input Current
8.4mA at 24V dc
20mA at 48V dc
Minimum Off-state Current
1.0mA
Maximum Off-state Voltage
4.5V dc
Minimum On-state Voltage
2.5 to 3K ohms maximum (on-state)
5 to 6K ohms maximum (off-state)
Input Signal Delay
Low to high propagation delay 15ms+7ms
High to low propagation delay 15ms+7ms
8.1 Watts (max.), 0.4 Watts (min.)
Thermal Dissipation
27.7 BTU/hr (max.), 1.3 BTU/hr (min.)
Backplane Current
74mA @ 5V dc +5%
Isolation Voltage
Wire Size
Category
Keying
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instructions
1
Status Indicators
12240-I
1500V ac rms
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Conductors
Not used
Input 0
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
10V dc
Input Impedance
Power Dissipation
Status Indicators
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
21
Sample Connection Diagram Driving a 1771IH Module with a
1771OB Module
Between 4 and 6
Between 16 and 18
Catalog Number 1771WA
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C,
D certified
• UL listed
• CE marked for all applicable directives
17712.8
You use this conductorcategory for planning conductor routing as described in the
systemlevel installation manual.
DC Output Module
Cat. No. 1771OB
+dc
24-27V dc
DC Input Module
Cat. No. 1771IH
+dc
A
A
Not used
Input 0
0
0
Output 0
Input 1
1
1
Output 1
Input 2
2
2
Output 2
Input 3
3
3
Output 3
Input 4
4
4
Output 4
Input 5
5
5
Output 5
Input 6
6
6
Output 6
Input 7
7
7
Output 7
dc Common
B
B
dc Common
dc Common
(Actual wiring runs in this direction.)
12241-I
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1771 Digital I/O DC Input and Output Modules
25
DC Input Module (Cat. No. 1771IQ Series B)
Simplified Schematic
Customer
Supply
+dc
Input
Indication
LED
(logic)
System
Circuitry
On for
Source
100k
Input
Filter
Opto
Isolation
1.2k
Comparator
47
Input
1.2k
On for
Sink
1N4448
Customer
Supply
-dc
18555
Application Notes
Device Compatibility. Each of the eight inputs to this
module are switch selectable for current sourcing or
current sinking of your device. The module can be set
for either high true or low true logic. The module has
selectable delay times of 12ms nominal (5ms minimum;
26ms maximum) in normal or 1ms (maximum) in fast
position. The switches must be set before you install
the module.
Connection to Output Modules. The sinking inputs
on the DC (5-30V) Input module (cat. no. 1771IQ) can
be directly driven by the sourcing outputs of the 24V dc
output modules (cat. nos. 1771OQ, OQ16, OB, OBD
and OBN).
Status Indicators. The front panel contains eight status
indicators. The indicators provide system logic side
indication of individual inputs.
Connection Diagram
(See applicable codes and laws.)
(+) 5-30V dc
A
Input 0
O
Input 1
1
Input 2
2
Input 3
3
Input 4
4
Input 5
5
Input 6
6
Input 7
7
dc Common
Module
Input
Sink
dc Current
Source Device
+
Module
Input
Source
Module
Input
Source
3-Wire
Current Sink
Proximity Switch
Power Supply
(Customer
Supplied)
dc Current
Sink Device
-
8
Conventional current flow
(Actual wiring runs in this direction.)
Publication 17712.180 - July 1996
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26
1771 Digital I/O DC Input and Output Modules
DC Input Module (Cat. No. 1771IQ Series B)
Status Indicators
Specifications (Cat. No. 1771IQ/B)
Inputs per Module
8
Module Location
1771 I/O chassis
Nominal Input Current
Input Voltage Range
HIGH = TRUE
LOW = TRUE
Customer Supply Voltage
Customer Supply Current per
Module
5mA @ 5V dc; 25mA @ 30V dc
ON: > 40% of customer supply voltage
OFF: < 20% of customer supply voltage
ON: < 20% of customer supply voltage
OFF: > 40% of customer supply voltage
5V dc to 30Vdc
All inputs ON and connected for source capability:
100mA per module @ 5V dc
350mA per module @ 30V dc
Input Impedance
1.2K ohms nominal
Input Signal Delay
Fast: Less than 1ms
Normal: 12ms typical (-7ms, +14ms)
Power Dissipation
Thermal Dissipation
6.8 Watts (max.), 0.8 Watts (min.)
150mA max.
Isolation Voltage
1500V ac rms
Conductors Wire Size
Category
Keying
Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instructions
1
Status Indicators
11907-I
23.2 BTU/hr (max.), 2.7 BTU/hr (min.)
Backplane Current
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Empty
Input 0
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
21
Between 6 and 8
Between 24 and 26
Catalog Number 1771WC
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
17712.24
You use this conductorcategory for planning conductor routing as described in the
systemlevel installation manual.
Sample Connection Diagram Driving a 1771IQ Module with a
1771OQ Module
DC Output Module
Cat. No. 1771OQ
+24V dc
Not used
+24V dc
Output 0
Output 1
1
DC Input Module
Cat. No. 1771IQ
2
3
4
dc Common
5
dc Common
Output 2
Output 3
+24V dc
6
A
24V dc
7
O
Input 0
8
1
Input 1
2
Input 2
Input 3
9
+24V dc
10
Output 4
11
3
4
Input 4
5
Input 5
Output 5
12
dc Common
dc Common
13
Output 6
Output 7
+24V dc
15
6
Input 6
16
7
Input 7
Not used
18
14
17
8
dc Common
dc Common
(Actual wiring runs in this direction.)
12246-I
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1771 Digital I/O DC Input and Output Modules
27
DC Input Module (Cat. No. 1771IQ16 Series B)
Simplified Schematic
Input LED
Indication
System
Circuitry
Input
38k
Opto
Isolation
825Ω
6.2V
750k
30V
825Ω
dc
Common
12247-I
Application Notes
Device Compatibility. This module must be used in a
series B I/O chassis. The 1771-IQ16 is not compatible with
the 1771-AL local I/O adapter.This module contains
customerselectable input filter times to limit the effects of
voltage transients caused by contact bounce and/or
radiated electrical noise. The delay due to filtering ranges
from 0msec to 18.0ms for turning dc inputs on to off. Delay
for turning dc inputs off to on is 1.0ms. The filter time is
factory set to 1.0ms.
This module is designed to operate with dc limit switches,
float switches, selector switches, proximity switches and
pushbutton switches.The module can be used as either a
sink or source input based on the wiring configuration of
the load.
Connection to Output Modules. You can use an output of
the dc (10-32V) output module (1771OQ16) to drive an
input of a dc (10-32V) input module (1771IQ16) to indicate
status of turning on a motor starter, for example. The
configuration shown has the output of the 1771OQ16 wired
as a source, and the input on the 1771IQ16 wired as a sink.
Status Indicators. The module has 17 indicators, consisting
of 16 input status indicators and an active indicator. The 16
status indicators are provided for system logic side indication
of individual inputs. The active indicator will light when the
module has successfully started up and initialized.
Connection Diagram
dc Return
Switch
sinks
current
Gnd - 0
Gnd - 1
Gnd - 2
Gnd - 3
Not Used
Gnd - 4
Gnd - 5
Gnd - 6
Gnd - 7
Not used
Gnd - 10
Gnd - 11
2
Gnd - 12
Gnd - 13
Not used
Gnd - 14
Gnd - 15
Gnd - 16
Gnd - 17
26
Not used
40
4
6
8
10
12
14
16
18
20
22
24
28
30
32
34
36
38
Input 0
Input 1
Input 2
Input 3
Not used
Input 4
Input 5
Input 6
Input 7
Not used
Input 10
Input 11
Input 12
Input 13
Not used
Input 14
Input 15
Input 16
Input 17
Not used
Module
sources
current
dc High
+
24V dc
Supply
24V dc
Supply
-
DC Return
(Actual wiring runs in this direction.)
Source Configuration
Alternate switch
position - switch
sources current;
module sinks
current.
10562-I
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28
1771 Digital I/O DC Input and Output Modules
DC Input Module (Cat. No. 1771IQ16 Series B)
Status Indicators
Specifications (Cat. No. 1771IQ16/B)
Inputs per Module
16
Module Location
1771 Series B I/O Chassis
Input Voltage Range
Minimum Off-state Current
10-32V dc
2mA @ 5V dc
Maximum Off-state Voltage
5V dc
Minimum On-state Voltage
10V dc
Minimum On-state Current
6.0mA @ 10V dc
Maximum Input Current
30mA @ 32V dc
Input Impedance
1.6K ohms maximum
Input Signal Delay
Customer Selectable: 0, 1, 9, 18ms
Power Dissipation
Thermal Dissipation
Backplane Current
Isolation Voltage
Maximum Cable Length
Conductors Wire Size
Category
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Keying
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging
is marked)
Installation Instructions
Module Active Indicator (green)
ACTIVE
00 10
01 11
02 12
03 13
04 14
05 15
06 16
07 17
15.0 Watts (max); 0.5 Watts (min)
51.0 BTU/hr (max); 1.7 BTU/hr (min)
100mA maximum
00 to 17 Status Indicators (red)
1500V ac channel-to-channel for 1s
1500V ac channel to backplane for 1s
10564-I
1000 ft (304.8 m)
14 gauge (2mm2) stranded maximum2
3/64 inch (1.2mm) insulation maximum
11
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
Connection Diagram Driving a 1771IQ16 Input Module with a
1771OQ16 Output Module
Between 22 and 24
Between 30 and 32
DC (24V) Isolated Output Module
Cat. No. 1771-OQ16
Catalog Number 1771WN
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B,
C, D certified
• UL listed
• CE marked for all applicable directives
17712.191
1You use this conductorcategory information for planning conductor routing as
described in the systemlevel installation manual.
2 14 gauge wire connected to all terminals may not allow the cover on the field
wiring arm to close. A smaller gauge wire may be used.
dc High
Output
wired
as source
+dc - 0
+dc - 1
+dc - 2
+dc - 3
Not Used
+dc - 4
+dc - 5
+dc - 6
+dc - 7
Not used
+dc - 10
+dc - 11
+dc - 12
+dc - 13
Not used
+dc - 14
+dc - 15
+dc - 16
+dc - 17
Not used
+
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
10-32V dc
Power Supply
Output 0
Output 1
Output 2
Output 3
Not used
Output 4
Output 5
Output 6
Output 7
Not used
Output 10
Output 11
Output 12
Output 13
Not used
Output 14
Output 15
Output 16
Output 17
Not used
DC (24V) Isolated Input Module
Cat. No. 1771-IQ16
Input
wired
as sink
2
4
6
dc
Return
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
Input 0
Input 1
Input 2
Input 3
Not used
Input 4
Input 5
Input 6
Input 7
Not used
Input 10
Input 11
Input 12
Input 13
Not used
Input 14
Input 15
Input 16
Input 17
Not used
(Actual wiring runs in this direction.)
-
Publication 17712.180 - July 1996
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10563-I
1771 Digital I/O DC Input and Output Modules
29
Fast Response DC Input Module (Cat. No. 1771IT)
Simplified Schematic
1N4448
System
Circuitry
Comparator
Input
Filter
3k
+dc
Input
Opto
Isolation
1.8k
Input
Indication
LED
(field)
3.9V
1k
dc
common
18556
Application Notes
Connection Diagram (TwoWire Devices)
Device Compatibility. The 1771IT module is compatible with de
vices that benefit from very short delay times such as the following:
Not used
A
• photoelectric switches
Input 0
O
• incremental encoders
• dc proximity switches
Input 1
1
Input 2
2
Input 3
3
Connection to Output Modules. You can use a dc Output
Driver Module (Cat. No. 1771OB) to directly drive terminals on a
Fast Response dc Input Module (Cat. No. 1771IT) Use the
same power source to power both modules to ensure that com
mon is at the same potential.
Input 4
4
Input 5
5
Input 6
6
Input 7
7
Status Indicators. The front panel contains 8 red status indica
tors. They provide field side indication of individual inputs. When
a red indicator is illuminated, the associated input is energized.
dc common
Static Switches
or
Pulse Input
+dc
+
12-24V dc
Supply
-
B
dc common
(See applicable codes and laws.)
(Actual wiring runs in this direction.)
12242-I
Publication 17712.180 - July 1996
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30
1771 Digital I/O DC Input and Output Modules
DC Input Module (Cat. No. 1771IT)
Status Indicators
Specifications (Cat. No. 1771IT)
Inputs per Module
8
Module Location
1771 I/O chassis
Input Voltage Range
12-24V dc
Nominal Input Current
8mA @ 12V dc
24mA @ 24V dc
Minimum Offstate Current
1.3A @ 4V dc
Maximum Offstate Voltage
4V dc
Minimum Onstate Voltage
10V dc
Input Impedance
Onstate: 1-2K ohms
Offstate: 2-3K ohms
Input Signal Delay
0.6ms (+0.2ms) on or off
Power Dissipation
Status Indicators
5.9 Watts (max.), 0.4 Watts (min.)
Thermal Dissipation
20.0 BTU/hr (max.), 1.3 BTU/hr (min.)
Backplane Current
74mA @ 5V dc
Isolation Voltage
1500V ac rms
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Conductors
Not used
Input 0
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
Wire Size
Category
Keying
Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instructions
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
21
Between 6 and 8
Between 32 and 34
Catalog Number 1771WA
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
17712.22
1 You use this conductorcategory for planning conductor routing as described in the
systemlevel installation manual.
12243-I
Sample Connection Diagram Driving a 1771IT Input Module with a
1771OB Ouput Module
DC Output Module
Cat. No. 1771-OB
+
A
O
Fast Response DC Input Module
Cat. No. 1771-IT
12-24V dc
Power Supply
A
O
1
1
2
2
3
3
4
4
5
5
6
6
7
7
B
B
12244-I
Publication 17712.180 - July 1996
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1771 Digital I/O DC Input and Output Modules
31
DC Input Module (Cat. No. 1771IV)
Simplified Schematic
+dc
3.9V
System
Circuitry
Comparator
Input
Filter
Input
Indication
LED
(field)
1k
Opto
Isolation
1.8k
3k
Input
1N4448
18557
Application Notes
Device Compatibility. The 1771IV module is compatible with the
following 2 and 3wire devices:
• dc proximity switches
• photoelectric sensors
• pushbuttons
• limit switches
• float switches
• selector switches
When using a 3wire input device, the input device must be
capable of sinking an onstate minimum current of 8mA at 12V
dc up to 24mA at 24V dc. The offstate leakage current of your
3wire devices should not exceed 1mA. This module contains
input filtering to limit the effect of voltage transients caused by
contact bounce and/or radiated electrical noise. The delay due to
input filtering is nominally 15+7ms for turning inputs on, and
15+7ms for turning inputs off.
Connection Diagram (Two-Wire Devices)
(See Applicable Codes and Laws)
+dc
A
Input 0
0
Input 1
1
Input 2
2
Input 3
3
Input 4
4
Input 5
5
Input 6
6
Input 7
7
Not used
B
+
dc
Power Supply
-
Connection to Output Modules. The sourcing inputs of the
dc (1224V) Input module (cat. no. 1771IV) can be directly driven
by the sinking outputs of the dc (1030V) Output module (cat. no.
1771OVN).
Status Indicators. The front panel contains eight red status
indicators. The status indicators provide field side indication of
individual inputs. When a red indicator lights, voltage is present
on the terminal.
(Actual wiring runs in this direction.)
11908-I
Publication 17712.180 - July 1996
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32
1771 Digital I/O DC Input and Output Modules
DC Input Module (Cat. No. 1771IV)
Connection Diagram (Three-Wire Devices)
Specifications (Cat. No. 1771IV)
Inputs per Module
8
Module Location
1771 I/O chassis
Input Voltage Range (+dc)
12 to 24V dc
Nominal Input Current
(Sourced)
8mA at (+dc - 12V dc)
24mA at (+dc - 24V dc)
Minimum Off-state Current
3.0mA at (+dc - 7V dc)
Maximum Off-state Voltage
Minimum On-state Voltage
(See Applicable Codes and Laws)
+dc
A
Input 0
0
Input 1
1
(+dc - 7V dc)
Input 2
2
(+dc - 10V dc)
Input 3
3
Input Impedance
1 to 2K ohms maximum (on-state)
2 to 3K ohms maximum (off-state)
Input 4
4
Input Signal Delay
Low to high propagation delay 15ms +7ms
High to low propagation delay 15ms+7ms
Input 5
5
5.8 Watts (max.), 0.4 Watts (min.)
Input 6
6
Power Dissipation
Input 7
7
Thermal Dissipation
19.9 BTU/hr (max.), 1.3 BTU/hr (min.)
Backplane Current
74mA @ 5V dc +5%
Isolation Voltage
+
dc
Power Supply
+
-
B
1500V ac rms
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Conductors
Not used
+
Wire Size
Category
Keying
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging
is marked)
Installation Instructions
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
21
Between 8 and 10
Between 12 and 14
Status Indicators
Catalog Number 1771WA
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C,
D certified
• UL listed
• CE marked for all applicable directives
17712.25
1 You use this conductorcategory for planning conductor routing as described in the
systemlevel installation manual.
11909-I
(Actual wiring runs in this direction.)
Not used
Input 0
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
Status Indicators
11910-I
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1771 Digital I/O DC Input and Output Modules
33
DC (1030V) Input Module (Cat. No. 1771IVN Series C)
Simplified Schematic
Input
Indication
LED
(logic)
1N4007
+dc
System
Circuit
Input
Filter
.1 µF
Opto
Isolation
3.9k
680
Input
3.6k
18562
Application Notes
Device Compatibility. The 1771IVN dc input
module has sourcing inputs and requires sinking
outputs. You must use this module in a series B
1771 I/O chassis. Do not place this module in the
same I/O chassis as the 1771IX thermocouple
module. You can use this module in the same
chassis as the 1771IXE thermocouple module.
This module has input filtering to limit the effects
of voltage transients caused by contact bounce
and/or electrical noise.
Connection to Output Modules. The sourcing
inputs of the 1771IVN module can be directly
driven by the sinking outputs of the dc (1030V)
output module (cat. no. 1771OVN).
Status Indicators. The module front plate has
32 status indicators. These indicators are
provided for system logic side indication of
individual inputs.
Connection Diagram
(See applicable codes and laws.)
2-Wire
Devices
+
+
dc
Supply
+
–
+
3-Wire
Devices
+ dc
Input 01
Input 03
Input 05
Input 07
+ dc
Input 11
Input 13
Input 15
Input 17
+
dc
Supply
–
+
+ dc
Input 01
Input 03
Input 05
Input 07
+ dc
Input 11
Input 13
Input 15
Input 17
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
+ dc
Input 00
Input 02
Input 04
Input 06
+ dc
Input 10
Input 12
Input 14
Input 16
+ dc
Input 00
Input 02
Input 04
Input 06
+ dc
Input 10
Input 12
Input 14
Input 16
Note: Terminals on the left are
even numbered (2 thru 40) ,
and terminals on the right are
odd numbered (1 thru 39).
(Actual wiring runs in this direction.)
12267-I
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34
1771 Digital I/O DC Input and Output Modules
DC Input Module (Cat. No. 1771IVN Series C)
Specifications (Cat. No. 1771IVN/C)
Inputs per module
32
Module Location
1771-A1B thru -A4B I/O Chassis
Input Voltage Range (+dc)
10 to 30V dc
Nominal Input Current
4.5mA @ (+dc - 10V dc)
Minimum Off-state Current
1.7mA @ (+dc - 5V dc)
Maximum Off-state Voltage
(+dc - 5V dc)
Minimum Onstate Voltage
(+dc - 10V dc)
Input Impedance
2.2K
Input Signal Delay
Low to high propagation: 6ms(+2ms)
High to low propagation: 6ms(+2ms)
Power Dissipation
53.3 BTU/hr (max); 5.1 BTU/hr (min)
Backplane Current
280mA @ 5V dc maximum
Conductors
Category
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
Keying
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instructions
10
11
12
13
14
15
16
17
00
01
02
03
04
05
06
07
10
11
12
13
14
15
16
17
Status Indicators (red)
1500V ac RMS
14 gauge (2mm2) stranded (max)2
3/64 inch (1.2mm) insulation (max)
Category 11
Wire Size
00
01
02
03
04
05
06
07
15.6W (max); 1.5W (min)
Thermal Dissipation
Isolation Voltage
Status Indicators
Between 14 and 16
Between 30 and 32
1771WN
12265-I
Sample Connection Diagram Driving a 1771IVN Module with a
1771OVN Module
DC Output Module
Cat. No. 1771OVN
+dc
10-30V dc
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
17715.35
1You use this conductorcategory information for planning conductor routing as
described in the systemlevel installation manual.
2 14 gauge wire connected to all terminals may not allow the cover on the field wiring arm to close.
A smaller gauge wire may be used.
DC Input Module
Cat. No. 1771IVN
2
2
4
4
6
6
8
8
10
10
12
12
14
14
16
16
18
18
20
20
22
22
24
24
26
26
28
28
30
30
32
32
34
34
36
36
38
38
40
40
dc Common
(Actual wiring runs in this direction.)
Publication 17712.180 - July 1996
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12266-I
1771 Digital I/O DC Input and Output Modules
35
DC Output Module (Cat. No. 1771OB Series C)
Simplified Schematic
System
Circuitry
2 Amp
Fuse
1N4448
+dc
Supply
10k
Opto
Isolation
3.3k
1N4002
681
10k
Output
Indication
LED (field)
Output
3.32k
3.32k
Fuse Blown
Indication
LED (field)
1N4002
dc
Supply
Common
12.1k
9V
18568
47.5
Application Notes
Device Compatibility. The 1771OB module can control output
devices such as dc motor starters, indicators and solenoids.
Connection to Input Modules. You can directly drive terminals
on a DC (12-24V) Input Module (cat. no. 1771IB) from terminals
on the DC (12-24V) Output module (cat. no. 1771OB). Use the
same dc power source to power both modules to ensure that
ground is at the same potential.
Status Indicators. The module has nine red status indicators.
The top indicator is the fuseblown indicator. It illuminates when a
fuse has blown in the module. The remaining eight indicators
correspond to each of the eight outputs. They are provided for
field side indication of individual outputs.
Connection Diagram
See Applicable Codes and Laws
+dc
Output 0
A
Output 1
Output 2
1
Output 3
3
Output 4
4
Output 5
5
Output 6
6
Output 7
dc Common
7
0
2
+
dc
Output
Device
-
+
dc
Power
Supply
-
B
(Actual wiring runs in this direction.)
11394
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36
1771 Digital I/O DC Input and Output Modules
DC Output Module (Cat. No. 1771OB Series C)
Status Indicator
Specifications (Cat. No. 1771OB/C)
Outputs per Module
8
Module Location
1771 I/O chassis
Output Voltage Range
Output Current (maximum)
10 to 27V dc
1.5A per output
8A per module
Surge Current (maximum per
output)
4A for 1ms, repeatable every 1s
Off-state Leakage Current
(maximum)
1mA per output @ 27V dc, 25oC
On-state Voltage Drop (maximum)
Output Signal Delay
Blown Fuse
Output 0
Output 1
Output 2
Output 3
Output 4
Output 5
Output 6
Output 7
2V dc
10ms on/off
Maximum Power Rating
Power Dissipation
3W per output
Status Indicators
16.9 Watts (max.), 0.9 Watts (min.)
Thermal Dissipation
57.6 BTU/hr (max.), 3.0 BTU/hr (min.)
Backplane Current
165mA @ 5V dc +5%
Isolation Voltage
12248-I
1500V ac rms
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Conductors Wire Size
Category
Keying
Fuses
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instructions
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
21
2A 8AG (one per output)
Catalog Number 1771WA
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B,
C, D certified
• UL listed
• CE marked for all applicable
directives
17712.3
DC (12-24V) Input Module
(Cat. No. 1771-IB)
DC Output Module
(Cat. No. 1771-OB)
Between 4 and 6
Between 18 and 20
1 You use this conductorcategory for planning conductor routing as described in the
systemlevel installation manual.
Connection Diagram Driving a 1771IB module with a
1771OB module
12-24V dc
A
A
Not used
Output 0
0
0
Input 0
Output 1
Output 2
1
1
2
2
Input 1
Input 2
Output 3
3
3
Input 3
Output 4
4
4
Input 4
Output 5
5
5
Input 5
Output 6
dc Common
Output 7
6
6
Input 6
7
7
Input 7
B
B
dc Common
+dc
dc Return
(Actual wiring runs in this direction.)
(See Applicable Codes and Laws)
11889-I
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1771 Digital I/O DC Input and Output Modules
37
DC Output Module (Cat. No. 1771OBD Series C)
Simplified Schematic
562
System
Circuitry
1N4004
3.48k
Output Indication
LED (logic)
Opto
Isolation
Isolated
+dc Supply
Fuse Blown
Indication LED
(logic)
1.78k
1.78k
Fuse
.5 Amp
.
14.7k
+dc
Supply
Fuse
10 Amp
1k
MOV
Logic
Circuitry
274
Output
.01
µF
dc
Supply
Common
1N4004
Application Notes
Device Compatibility. This module must be used with a series B 1771
I/O chassis. Make sure no other output module or single card block
transfer module is placed in the same module group when using 2slot
addressing.
Connection to Input Modules. You can use a dc (10-60V) output
Module (cat. no. 1771OBD) to directly drive terminals on the following
modules: 1771IB, IC, IBD, ICD. Use the same dc supply to power
both modules to ensure that ground is at the same potential.
Status Indicators. The module has one green module active indicator,
16 red status indicators and one red fuseblown indicator. The green
module active indicator lights when the module is powered, the
processor keyswitch is on "run", and the optoisolators and data paths
are functioning properly. It turns off if a fault occurs in the data paths
or the opto-isolators. The module will then reset its outputs or set them
to last state. The red status indicators provide for system logic side
indication of individual outputs. The fuseblown indicator turns on when
the fuse is blown.
Module Application. An optional 1771WHFB field wiring arm can be
used with this module. Its fuses will protect the module's outputs from
short circuit conditions. Note that the continuous output current
must not exceed 1.1A.
18567
Connection Diagram
+dc
+dc
+dc
+dc
Output 00
Output 01
Output 02
Output 03
Output 04
Output 05
Output 06
Output 07
Output 10
Output 11
Output 12
Output 13
Output 14
Output 15
Output 16
Output 17
-dc
A
B
C
D
00
01
02
03
04
05
06
07
10
11
12
13
+
dc
Output
Device
-
14
15
+
User
dc
Supply
-
16
17
E
(See applicable codes and laws.)
(Actual wiring runs in this direction.)
12249-I
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38
1771 Digital I/O DC Input and Output Modules
DC Output Module (Cat. No. 1771OBD Series C)
Specifications (Cat. No. 1771OBD/C)
Outputs per Module
16
Module Location
Series B 1771 I/O chassis
Output Voltage Range
10 to 60V dc
Minimum Output Current
2.5mA per output
Maximum Output Current
2A per output
8A per module
Surge Current (maximum)
Offstate Leakage Current
(maximum)
Onstate Voltage Drop (max.)
Power Rating (maximum)
Output Signal Delay
0.5mA per output @ 24V dc, 25oC
3 Watts per output
Thermal Dissipation
47.8 BTU/hr (max.), 6.9 BTU/hr (min.)
Backplane Current
400mA @ 5V dc +5%
1500V ac rms
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Conductors Wire Size
Category
Fuse
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
11
10A, 250V rectifier fuse
(1/4 x 1-1/4 inch)
Keying
Between 10 and 12
Between 22 and 24
Standard
Optional
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instructions
00 to 17 Status Indicators (red)
Fuse Blown Indicator (red)
0.3V at 2A
14 Watts (max.), 2 Watts (min.)
Isolation Voltage
Module Active Indicator (green)
ACTIVE
00 10
01 11
02 12
03 13
04 14
05 15
06 16
07 17
FUSE
4A per output for 10ms,
repeatable every 2s
25A per module for 10ms,
repeatable every 2s
1.0ms on or off
Power Dissipation
Field Wiring Arm
Status Indicator
Cat. No. 1771WH
Cat. No. 1771WHF (fused - 3A)2
Cat. No. 1771WHFB (fused - 1.5A)3
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B,
C, D certified
• UL listed
• CE marked for all applicable directives
12250-I
Connecting Diagram Driving a 1771ICD Module with a
1771OBD Module
DC (10-60V)
Output Module
(Cat. No. 1771-OBD)
DC (20-60V)
Input Module
(Cat. No. 1771-ICD)
20-60V dc
+dc
+dc
+dc
+dc
Output 00
Output 01
Output 02
Output 03
Output 04
Output 05
Output 06
Output 07
Output 10
Output 11
Output 12
Output 13
Output 14
Output 15
Output 16
Output 17
-dc
Not used
Not used
Not used
Not used
Input 00
Input 01
Input 02
Input 03
Input 04
Input 05
Input 06
Input 07
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
Input 17
dc Common
17712.76
1 You use this conductorcategory for planning conductor routing as described in the
systemlevel installation manual.
2 With a customer supply voltage of 30V dc or less, the field wiring arm fuses protect the
individual output circuits from damage during a short circuit condition while controlling a
resistive load with a continuous current that does not exceed 2A.
3 With a customer supply voltage of 30V dc or less, the field wiring arm fuses protect the
individual output circuits from damage during a short circuit condition while controlling a
resistive load with a continuous current that does not exceed 1A.
20-60V dc Return
(Actual wiring runs in this direction)
(See Applicable Codes and Laws)
12251-I
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1771 Digital I/O DC Input and Output Modules
39
DC Output Module (Cat. No. 1771OBN Series B)
Simplified Schematic
Fuse Blown
Indication
LED (logic)
Opto
Isolation
470
Output
Indication
LED
(logic)
1N4007
+dc
Supply
(1 of 4)
Fuse
4 Amp
Output
System
Circuitry
Opto
Isolation
15k
Power
SIP
1N4007
dc
Supply
Common
(1 of 4)
18569
Application Notes
Device Compatibility. The 1771OBN dc output module has
sourcing outputs and requires sinking inputs. You must use this
module in a series B 1771 I/O chassis.
Do not place this module in the same I/O chassis as the 1771IX
thermocouple module. You can use this module in the same
chassis as the 1771IXE thermocouple module.
Connection to Input Modules. A 1771OBN module can di
rectly drive terminals on a 1771IBN input module. Use the
same dc supply to power both modules to ensure that
ground is at the same potential.
Status Indicators. The module has 32 status indicators. These
are provided for system logic side indication of individual outputs.
An additional indicator is provided to indicate a blownfuse
condition.
Connection Diagram
Output 0
2
Output 2
Output 4
Output 6
Common 0
Output 10
Output 12
Output 14
4
Output 16
Common 1
Output 0
Output 2
Output 4
Output 6
Common 2
Output 10
Output 12
Output 14
Output 16
Common 3
18
6
8
10
12
14
16
20
22
24
26
28
30
32
34
36
38
40
+ dc
Output 1
Output 3
Output 5
Output 7
+ dc
Output 11
Output 13
Output 15
Output 17
+ dc
Output 1
Output 3
Output 5
Output 7
+ dc
Output 11
Output 13
Output 15
Output 17
Note: Terminals on the left are
even numbered (2 thru 40) ,
and terminals on the right are
odd numbered (1 thru 39).
+
dc Output
Device
+
dc
Supply
-
(See applicable codes and laws.)
(Actual wiring runs in this direction.)
12252-I
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40
1771 Digital I/O DC Input and Output Modules
DC Output Module (Cat. No. 1771OBN Series B)
Status Indicators
Specifications (Cat. No. 1771OBN/B)
Outputs per module
Module Location
Output Voltage Range
32 (4 groups of 8)
1771-A1B thru -A4B I/O Chassis
10 to 30V dc
Maximum Output Current
0.5A per output
2A per output group
8A per module
Maximum Surge Current
2A per output for 10ms; repeatable every 2s
5A per group for 10ms.;repeatable every 2s
20A per module for 10ms.; repeatable every 2s
Maximum On-state Voltage Drop
Maximum Off-state Leakage
Current
Maximum Power Rating
Output Signal Delay
Power Dissipation
1.0mA per output @ 30V dc, 55oC
0.75W per output
On to off propagation delay 2.0ms
Off to on propagation delay 0.1ms
46.7 BTU/hr (max); 5.7 BTU/hr (min)
Backplane Current
330mA @ 5V dc maximum
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Conductors Wire Size
Category
1500V ac rms
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded (max)1
3/64 inch (1.2mm) insulation (max)
12
Fuses
Four 4.0A, 250V normal blow fuses (1 per group)
Keying
Between 14 and 16
Between 20 and 22
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instructions
1
2
10 00
11 01
12 02
13 03
14 04
15 05
16 06
17 07
FUSE
10
11
12
13
14
15
16
17
Status Indicators (red)
Fuse Blown Indicator
13.7W (max); 1.7W (min)
Thermal Dissipation
Isolation Voltage
00
01
02
03
04
05
06
07
1.5V dc at 0.5A
1771WN
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
17715.34
14 gauge wire connected to all terminals may not allow the cover on the field wiring arm to
close. A smaller gauge wire may be used.
You use this conductorcategory information for planning conductor routing as described in the
systemlevel installation manual.
12253-I
Sample Connection Diagram Driving a 1771IBN Module with a
1771OBN Module
DC Output Module
Cat. No. 1771OBN
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
DC Input Module
Cat. No. 1771IBN
+dc
10-30V dc
dc Common
(Actual wiring runs in this direction.)
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
12254-I
Publication 17712.180 - July 1996
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1771 Digital I/O DC Input and Output Modules
41
DC Output Module (Cat. No. 1771OC Series C)
Simplified Schematic
1N4448
System
Circuitry
2 Amp
Fuse
+dc
Supply
10k
Opto
Isolation
3.3k
1.1k
1N4002
10k
Output
15k
5.62k
280
3.3k
Output
Indication
LED (field)
Fuse Blown
Indication
LED (field)
1N4002
13V
dc Supply
Common
18564
Application Notes
Device Compatibility. The 1771OC module can control the following
output devices:
• dc motor starters
• indicators
• solenoids
Connection to Input Modules. You can directly drive terminals on a
dc (48V) input module (cat. no. 1771IC) from terminals on the dc
(48V) output module (cat. no. 1771OC). Use the same dc power
source to power both modules to ensure that ground is at the
same potential.
Status Indicators. The module has nine red status indicators. The
top indicator is the fuseblown indicator. It illuminates when a fuse
has blown in the module. The remaining eight status indicators are
provided for field side indication of individual outputs.
Connection Diagram
See Applicable Codes and Laws
+dc
A
Output 0
0
Output 1
1
Output 2
2
Output 3
3
Output 4
4
Output 5
5
Output 6
6
Output 7
7
dc Common
B
+
dc
Output
Device
-
+
dc
Power Supply
-
11394
(Actual wiring runs in this direction.)
Publication 17712.180 - July 1996
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42
1771 Digital I/O DC Input and Output Modules
DC Output Module (Cat. No. 1771OC Series C)
Status Indicator
Specifications (Cat. No. 1771OC/C)
Outputs per Module
8
Module Location
1771 I/O chassis
Output Voltage Range
42 to 53V dc
Maximum Output Current
1.5A per output;
8A per module
Maximum Surge Current
4A for 1ms, repeatable every 1s per
output
Maximum Off-state Leakage Current
1mA per output @ 53V dc, 25oC
Maximum On-state Voltage Drop
2V dc @ 1.5A
Maximum Power Rating
3W per output
Output Signal Delay
10msec on or off
Power Dissipation
16.9 Watts (max.), 0.9 Watts (min.)
Thermal Dissipation
57.6 BTU/hr (max.), 3.0 BTU/hr (min.)
Backplane Current
165mA @ 5V dc +5%
Isolation Voltage
Status Indicators
12255-I
1500V ac rms
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Conductors
Blown Fuse
Output 0
Output 1
Output 2
Output 3
Output 4
Output 5
Output 6
Output 7
Wire Size
Category
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
21
Fuses
2A 8AG (one per output)
Keying
Between 4 and 6
Between 20 and 22
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instructions
Catalog Number 1771WA
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B,
C, D certified
• UL listed
• CE marked for all applicable directives
17712.175
1 You use this conductorcategory for planning conductor routing as described in the
systemlevel installation manual.
Connection Diagram Driving a 1771IC Module with a
1771OC Module
DC Output Module
(Cat. No. 1771-OC)
DC (48V) Input Module
(Cat. No. 1771-IC)
42-53V DC
A
A
Not used
Output 0
0
0
Input 0
Output 1
Output 2
1
1
2
2
Input 1
Input 2
Output 3
3
3
Input 3
Output 4
4
4
Input 4
Output 5
5
5
Input 5
Output 6
6
6
Input 6
Output 7
7
7
Input 7
B
B
dc Common
+dc
dc Common
dc
Return
(Actual wiring runs in this direction.)
(See Applicable Codes and Laws)
12256-I
Publication 17712.180 - July 1996
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1771 Digital I/O DC Input and Output Modules
43
DC Output Module (Cat. No. 1771OG)
4.7k
Simplified Schematic
Output
Indication
LED
(logic)
System
Circuitry
Open - Low = True
Closed - High = True
Open - Disable LED
Closed - Enable LRD
1k
Opto
Isolation
Customer
+5V dc
Supply
680
TTL Output
Customer
Common
dc Supply
18665
Application Notes
Device Compatibility. You can use any TTL device
that meets the input logic level specification of -0.2V dc
to +0.8V dc (low), and 2.0V dc to 5.25V dc (high).
A switch on the module allows selection of High = True
or Low = True logic.
Connection to Input Modules. Output terminals of the
TTL output module (cat. no. 1771OG) may directly
drive inputs of a TTL input module (cat. no. 1771IG).
Connect the cable shield between modules at one end
only.
Status Indicators. The module has nine status
indicators. The red top indicator is labeled High = True."
When on, it indicates you selected hightrue logic. When
off, it indicates you selected lowtrue logic. Each of the
lower eight indicators light when their corresponding
output terminal delivers TTL voltages in the true state.
Indicators may appear dim during rapid pulsing of output
signals.
Module Application. You can select the operating
logic of the module using the logic switches located in
the module. Choose between High = True" or
Low = True" logic.
Connection Diagram
(See applicable codes and laws.)
+5V dc
Output 0
Output 1
A
Output 2
Output 3
Output 4
2
Output 5
5
Output 6
6
Output 7
dc Common
7
Customer
Power Supply
+5V dc
+
O
1
1
3
4
+
1
-
8
Ground cable shield at a single
chassis mounting bolt.
1 Add a pull-up resistor (1K ohm typical)
if not internal to the device.
(Actual wiring runs in this direction.) The outputs of the 1771-OG are open-collector
with internal 1K pull-up (up to 5V) resistors.
10447-I
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44
1771 Digital I/O DC Input and Output Modules
DC Output Module (Cat. No. 1771OG)
Status Indicator
Specifications (Cat. No. 1771OG)
Outputs per Module
8
Module Location
1771 I/O chassis
Output Voltage Range
HIGH = TRUE
LOW = TRUE
ON; 2.0 to 5.25V dc
OFF: -0.2 to +0.8V dc
ON: -0.2 to +0.8V dc
OFF: 2.0 to 5.25V dc
Maximum Output Current
Source: 1mA; Sink: 20mA
Customer Supply Voltage
5V dc (+0.25V)
50mV peak-to-peak ripple max.
Customer Supply Current per Module
Output Signal Delay
250mA max.
Less than 1ms
Power Dissipation
2.2 Watts (max.); 0.8 Watts (min.)
Thermal Dissipation
7.5 BTU/hr (max.); 2.7 BTU/hr (min.)
Backplane Current
168mA max.
Isolation Voltage
1500V ac rms
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Conductors
HIGH = TRUE indicator
Output 0
Output 1
Output 2
Output 3
Status Indicators
Output 4
Output 5
Output 6
Output 7
Wire Size
Cable
Category
Keying
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is marked)
Installation Instructions
12257-I
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
Shielded (Belden 8761)
21
Between 6 and 8
Between 10 and 12
Catalog Number 1771WC
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
17712.177
1 You use this conductorcategory for planning conductor routing as described in the
systemlevel installation manual.
Publication 17712.180 - July 1996
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1771 Digital I/O DC Input and Output Modules
45
DC Output Module (Cat. No. 1771OGD Series B)
Simplified Schematic
Output
Indication
LED
(logic)
1k
System
Circuitry
Customer
+5V dc
Supply
.5 Amp
Fuse
1N4448
TTL
Output
Opto
Isolation
7438
1N4448
High/Low
Logic
Select
Application Notes
Device Compatibility. The TTL output module must
be used in a series B 1771 I/O chassis.You can use
any TTL device that meets the input logic level
specification of -0.2V dc to +0.8V dc (low), and 2.0V
dc to 5.25V dc (high).
Connection to Input Modules. Output terminals of
the TTL output module (cat. no. 1771OGD) may
directly drive the inputs of the TTL input module (cat.
no. 1771IGD). Connect the cable shield between
modules at one end only.
Status Indicators. The module has 18 status
indicators. The green top indicator, labeled ACTIVE," is
on when the fuse is good. The green bottom indicator,
when on, indicates you selected hightrue logic. When
off, it indicates you selected lowtrue logic. Each of the
16 red status indicators light when their corresponding
output terminal delivers TTL voltages in the true state.
Module Application. You can select the operating
logic of the module using the logic switches located in
the module. Choose between High = True" or
Low = True" logic.
Customer
Common
dc Supply
MOV
14V dc
6V
18568
Connection Diagram
(See applicable codes and laws.)
+5V dc
+5V dc
+5V dc
+5V dc
Output 00
Output 01
Output 02
Output 03
Output 04
Output 05
Output 06
Output 07
Output 10
Output 11
Output 12
Output 13
Output 14
Output 15
Output 16
Output 17
dc Common
A
B
C
D
00
01
02
03
04
05
06
07
10
11
12
13
14
15
16
17
E
Customer
Power Supply
+5V dc
-
+
1
1
Ground cable shield at a single
chassis mounting bolt.
1 Add a pull-up resistor if not internal to the device.
(Actual wiring runs in this direction.)
The outputs of the 1771-OGD module are
open collector with internal 1K ohm pull-up
(to 5V) resistors.
10444-I
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46
1771 Digital I/O DC Input and Output Modules
DC Output Module (Cat. No. 1771OGD Series B)
Specifications (1771-OGD/B)
Outputs per Module
16
Module Location
Series B 1771 I/O chassis
Output Voltage Range
HIGH = TRUE
LOW = TRUE
ON; 2.0 to 5.25V dc
OFF: -0.2 to +0.8V dc
ON: -0.2 to +0.8V dc
OFF: 2.0 to 5.25V dc
Maximum Output Current
Source: 1mA; Sink: 20mA
Customer Supply Voltage
5V dc (+0.25V)
50mV peak-to-peak ripple max.
Customer Supply Current per
Module
Output Signal Delay
310mA max.
Less than 1ms
Power Dissipation
2.8 Watts (max.); 1.0 Watts (min.)
Thermal Dissipation
9.5 BTU/hr (max.); 3.4 BTU/hr (min.)
Backplane Current
230mA max.
Isolation Voltage
1500V ac rms
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Conductors
Status Indicators
Wire Size
Cable
Category
Fuse
Keying
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instructions
ACTIVE
00 10
01 11
02 12
03 13
04 14
05 15
06 16
07 17
HIGH
Module Active
Indicator (green)
00 to 17 Status
Indicators (red)
Positive Logic
Indicator (green)
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
Shielded (Belden 8761)
21
0.5A 250V Normal Blow
Between 16 and 18
Between 26 and 28
Catalog Number 1771WH
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
17712.176
1 You use this conductorcategory for planning conductor routing as described in the
systemlevel installation manual.
Publication 17712.180 - July 1996
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10445-I
1771 Digital I/O DC Input and Output Modules
47
DC Output Module (Cat. No. 1771OQ Series B)
Simplified Schematic
2.5 Amp
Fuse
10k
System
Circuitry
Opto
Isolation
+dc
Supply
1N4005
2.35k
Output
12k
Output
Indication
LED (field)
10
1N4005
µF
JPR
15V
dc Supply
Common
1N4005
Application Notes
18666
Connection Diagram
Device Compatibility. An output from this module can
drive dc motor starters, indicators, and solenoids.
(See applicable codes and laws.)
Output 6
Output 7
+24V dc
Not used
+
+
dc
Output Device +
dc
Output Device
+
+
+
dc
Output Device +
dc
Output Device
1
2
Setting Jumper Configuration. This module contains
soldered jumpers that limit the effects of noise. They must
be removed when using certain output devices, such as
solenoids. These jumpers are not reusable. Make certain
that you will not be using a particular output for other uses
before clipping the jumper. Use the figure below to locate
the jumper.
Output 4
Output 5
dc Common
dc Common
3
4
5
6
7
8
Status Indicators. The module has eight red status indica
tors. Each status indicator provides field side indication of
individual outputs. When an indicator is illuminated, the cor
responding output circuit is closed.
dc Common
dc Common
Output 2
Output 3
+24V dc
+24V dc
9
10
11
12
Not used
+24V dc
Output 0
Output 1
13
14
15
16
17
18
Connection to Input Modules. The 1771OQ module
can drive a 24V dc input module (cat. no. 1771IB) if you
have not removed the jumpers on the 1771OQ.
+
dc
Output Device +
User 24V
dc Supply
User 24V
dc Supply
dc
Output Device dc
Output Device +
+
User 24V
dc Supply
User 24V
dc Supply
dc
Output Device +
Black Band
Clip leads here.
Jumper 1 - corresponds to output 0
Jumper 2 - corresponds to output 1
Jumper 3 - corresponds to output 2
Jumper 4 - corresponds to output 3
Jumper 5 - corresponds to output 4
Jumper 6 - corresponds to output 5
Jumper 7 - corresponds to output 6
Jumper 8 - corresponds to output 7
Field Wiring Arm
Cat. No.
1771WF
(Actual wiring runs in this direction.)
12259-I
11066I
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48
1771 Digital I/O DC Input and Output Modules
DC Output Module (Cat. No. 1771OQ Series B)
Status Indicators
Specifications (Cat. No. 1771OQ/B)
1771 I/O chassis
24V dc (+10%,-15%)
Peaks of modulated ripple must be
between 17-34V dc
Maximum Output Current
2.25A per output
2.25A per group
9A per module
Maximum Surge Current
4.0A for 10ms per output
Maximum Off-state Leakage
Current
Maximum Power Rating
Output Signal Delay
Power Dissipation
Thermal Dissipation
Backplane Current
Isolation Voltage
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Conductors Wire Size
Category
2V dc @ 2.25A
1.0mA per output @ 34V dc, 25oC
4.5W per output
10ms on or off
65.1 BTU/hr (max.), 4.1 BTU/hr (min.)
225mA
1500V ac rms
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded maximum
3/64 inch (1.2mm) insulation maximum
11
2.5A, 3AG (1 per output pair)
Keying
Between 2 and 4
Between 10 and 12
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instructions
Catalog Number 1771WF
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
17712.92
1 You use this conductorcategory for planning conductor routing as described in the
systemlevel installation manual.
12260-I
19.1 Watts (max.), 1.1 Watts (min.)
Fuses
Field Wiring Arm
Status Indicators
Sample Connection Diagram Driving a 1771IQ Module with a
1771OQ Module
DC Output Module
Cat. No. 1771OQ
DC Input Module
Cat. No. 1771IQ
+24V dc
Not used
+24V dc
Output 0
Output 1
dc Common
dc Common
Output 2
Output 3
+24V dc
+24V dc
Output 4
Output 5
dc Common
dc Common
Output 6
Output 7
+24V dc
Not used
1
2
Maximum On-state Voltage Drop
Not used
Output 0
Output 1
Output 2
Output 3
Output 4
Output 5
Output 6
Output 7
3
4
5
6
7
8
Output Voltage Range
9
10
11
12
Module Location
8 (4 groups of 2, each group sharing a
common dc supply)
13
14
15
16
17
18
Outputs per Module
A
dc+
O
Input 0
1
Input 1
2
Input 2
3
Input 3
4
Input 4
5
Input 5
6
Input 6
7
Input 7
8
dc Common
dc Common
(Actual wiring runs in this direction.)
Publication 17712.180 - July 1996
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12261-I
1771 Digital I/O DC Input and Output Modules
49
DC Input Module (Cat. No. 1771OQ16 Series B)
Simplified Schematic
Fuseblown
Indication
Circuitry
Opto
Isolation
3.8k
Input LED
Indication
dc
Input
(+)
3A
System
Circuitry
Opto
Isolation
.0047µF
39V
10.0k
dc
Output
(-)
12262-I
Application Notes
Connection Diagram
Device Compatibility. This module must be used in a series
B I/O chassis. The 1771OQ16 is not compatible with the
1771AL local I/O adapter. This module is designed to operate
with dc relays and other dc output devices
Connection to Input Modules. You can use an output of the
1771OQ16 module to drive an input of a dc input module (cat. no.
1771IQ16) to indicate status of turning on a motor starter, for
example.
Status Indicators. The module has 18 indicators, consisting of 16
output status indicators, a fuseblown indicator and an active
indicator. The 16 status indicators are provided for system logic
side indication of individual outputs. The active indicator lights
when the module has successfully started up and initialized.The
fuseblown indicator lights when a fuse has cleared or been
removed, the channel associated with that fuse has been turned
on", the applied voltage to that channel is above the specified
minimum on" voltage, and the load is less than or equal to the
maximum specified for this module. The fuseblown indicator will
reset after the fuse has been replaced and chassis power has
been cycled.
Alternate
Load
Location
Load
Output 0
Output 1
Output 2
Output 3
Not used
Output 4
Output 5
Output 6
Output 7
Not used
Output 10
Output 11
Output 12
Output 13
Not used
Output 14
Output 15
Output 16
Output 17
Not used
+dc - 0
+dc - 1
+dc - 2
+dc - 3
Not Used
+dc - 4
+dc - 5
+dc - 6
+dc - 7
Not used
+dc - 10
+dc - 11
+dc - 12
+dc - 13
Not used
+dc - 14
+dc - 15
+dc - 16
+dc - 17
Not used
Load
(Actual wiring runs in this direction.)
dc High
+
24V dc
Power Supply
dc Return
10565-I
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50
1771 Digital I/O DC Input and Output Modules
DC Output Module (Cat. No. 1771OQ16 Series B)
Status Indicators
Specifications (Cat. No. 1771OQ16/B)
Outputs per Module
Module Location
Output Voltage Range
16
Series B 1771 I/O Chassis
10 to 32V dc
Minimum Output Current
5mA
Maximum Output Current
2.0A per output;
32.0A per module
Maximum On-state Voltage
Drop
0.34V dc @ 2A
Maximum Off-state Leakage
Current
0.5mA per output @ 32V dc, 25oC
Maximum Surge Current
Power Rating
4A for 10ms per output,
repeatable every 2 sec.
Output State
Indicators
(red)
0.68 Watts per output (max) @ 2A
Output Signal Delay
Power Dissipation
Thermal Dissipation
Backplane Current
Isolation Voltage
Maximum Cable Length
Conductors Wire Size
Category
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Turn On: 100usec (max);
Turn Off: 300usec (max)
400mA maximum
1500V channel-to-channel
1500V channel to backplane
1000 ft (304.8 m)
14 gauge (2mm2) stranded maximum2
3/64 inch (1.2mm) insulation maximum
11
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
Keying
Between 22 and 24
Between 32 and 34
Agency Certification
(when product or packaging
is marked)
Installation Instructions
10567-I
44.3 BTU/hr (max); 6.8 BTU/hr (min)
3A 2AG Fast Acting fuses (1 per output)
Littelfuse P/N 225003
Wiring Arm Screw Torque
Fuse Blown Indicator
(red)
13.0 Watts (max); 2.0 Watts (min)
Fuses
Field Wiring Arm
ACTIVE Indicator
(green)
ACTIVE
00
10
01
11
02
12
03
13
04
14
05
15
06
16
07
17
FUSE
Catalog Number 1771WN
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B,
C, D certified
• UL listed
• CE marked for all applicable directives
17712.192
1You use this conductorcategory information for planning conductor routing as
described in the systemlevel installation manual.
2 14 gauge wire connected to all terminals may not allow the cover on the field wiring
arm to close. A smaller gauge wire may be used.
Sample Connection Diagram Driving a 1771IQ16 Module with a
1771OQ16 Module
DC (24V) Isolated Output Module
Cat. No. 1771-OQ16
dc High
+dc - 0
+dc - 1
+dc - 2
+dc - 3
Not Used
+dc - 4
+dc - 5
+dc - 6
+dc - 7
Not used
+dc - 10
+dc - 11
+dc - 12
+dc - 13
Not used
+dc - 14
+dc - 15
+dc - 16
+dc - 17
Not used
+
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
10-32V dc
Power Supply
Output 0
Output 1
Output 2
Output 3
Not used
Output 4
Output 5
Output 6
Output 7
Not used
Output 10
Output 11
Output 12
Output 13
Not used
Output 14
Output 15
Output 16
Output 17
Not used
DC (24V) Isolated Input Module
Cat. No. 1771-IQ16
2
4
6
dc
Return
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
Input 0
Input 1
Input 2
Input 3
Not used
Input 4
Input 5
Input 6
Input 7
Not used
Input 10
Input 11
Input 12
Input 13
Not used
Input 14
Input 15
Input 16
Input 17
Not used
(Actual wiring runs in this direction.)
-
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10566-I
1771 Digital I/O DC Input and Output Modules
51
DC Output Module (Cat. No. 1771OVN Series B)
Simplified Schematic
Fuse Blown
Indication
LED (logic)
1N4007
15k
+dc
Common
(1 of 4)
Output
Indication
LED (logic)
System
Circuitry
Opto
Isolation
1N4007
470
1N4007
Output
Opto
Isolation
dc Supply
Common
(1 of 4)
Fuse
4 Amp
18670
Application Notes
Device Compatibility. The 1771OVN dc output module
has sinking outputs which can interface with sourcing in
puts. You must use this module in a series B 1771 I/O
chassis. Do not place this module in the same I/O chassis
as the 1771IX thermocouple module. You can use this
module in the same chassis as the 1771IXE thermocouple
module as long as you use 1/2slot addressing.
Connection to Input Modules. A 1771OVN module can
directly drive terminals on a 1771IVN input module. Use
the same dc supply to power both modules to ensure
that ground is at the same potential.
Status Indicators. The module has 32 status indicators.
These represent the control status of the outputs. These are
provided for system logic side indication of individual out
puts. An additional indicator is provided to indicate a blown
fuse condition.
Connection Diagram
Output 0
Output 2
Output 4
Output 6
Common 0
Output 10
Output 12
Output 14
Output 16
Common 1
Output 0
Output 2
Output 4
Output 6
Common 2
Output 10
Output 12
Output 14
Output 16
Common 3
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
Note: Terminals on the left are
even numbered (2 thru 40) ,
and terminals on the right are
odd numbered (1 thru 39).
+ dc
Output 1
Output 3
Output 5
Output 7
+ dc
Output 11
Output 13
Output 15
Output 17
+ dc
Output 1
Output 3
Output 5
Output 7
+ dc
Output 11
Output 13
Output 15
Output 17
dc Output
Device
+
+
dc
Supply
-
(See applicable codes and laws.)
(Actual wiring runs in this direction.)
12262-I
Publication 17712.180 - July 1996
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52
1771 Digital I/O DC Input and Output Modules
DC Output Module (Cat. No. 1771OVN Series B)
Specifications (Cat. No. 1771OVN/B)
Outputs per module
Module Location
Output Voltage Range
32 (4 groups of 8)
Series B 1771 I/O Chassis
10 to 30V dc
Maximum Output Current
0.5A per output
2A per group
8A per module
Maximum Surge Current
2A per output for 10ms; repeatable every 2sec.
5A per output group for 10ms.;
repeatable every 2sec.
20A per module for 10ms.;
repeatable every 2sec.
Maximum Off-state Leakage
Current
Maximum On-state Voltage Drop
Maximum Power Rating
Output Signal Delay
Power Dissipation
3W per output
1500V ac rms
0o to 60oC (32o to 140oF)
-40o to 85oC (-40o to 185oF)
5 to 95% (without condensation)
14 gauge (2mm2) stranded (max)2
3/64 inch (1.2mm) insulation (max)
11
Fuses
Four 4.0A, 250V normal blow fuses
(1 per group)
Keying
Between 14 and 16
Between 32 and 34
Field Wiring Arm
Wiring Arm Screw Torque
Agency Certification
(when product or packaging is
marked)
Installation Instructions
12263-I
13.7W (max); 1.7W (min)
330mA @ 5V dc maximum
Category
Fuse Blown Indicator
On to off propagation delay 2.0msec
Off to on propagation delay 0.1msec
Backplane Current
Conductors Wire Size
Status Indicators (red)
1.5V dc at 2A
46.7 BTU/hr (max); 5.7 BTU/hr (min)
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
00 10 00 10
01 11 01 11
02 12 02 12
03 13 03 13
04 14 04 14
05 15 05 15
06 16 06 16
07 17 07 17
FUSE
1.0mA per output @ 30V dc, 55oC
Thermal Dissipation
Isolation Voltage
Status Indicators
1771WN
79 inchpounds
• CSA certified
• CSA Class I, Division 2 Groups A, B, C, D
certified
• UL listed
• CE marked for all applicable directives
17715.36
1You use this conductorcategory information for planning conductor routing as
described in the systemlevel installation manual.
2 14 gauge wire connected to all terminals may not allow the cover on the field
wiring arm to close. A smaller gauge wire may be used.
Sample Connection Diagram Driving a 1771IVN Module with a
1771OVN Module
DC Output Module
Cat. No. 1771OVN
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
DC Input Module
Cat. No. 1771IVN
+dc
10-30V dc
dc Common
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
(Actual wiring runs in this direction.)
12264-I
Publication 17712.180 - July 1996
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com
Notes
53
Notes
Publication 17712.180 - July 1996
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com
54
Notes
Notes
Publication 17712.180 - July 1996
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com
Support Services
Support Services
55
At Allen-Bradley, customer service means experienced
representatives at Customer Support Centers in key cities throughout
the world for sales service and support. Our value-added services
include:
Technical Support
•
•
•
•
SupportPlus programs
telephone support and 24-hour emergency hotline
software and documentation updates
technical subscription services
Engineering and Field Services
•
•
•
•
application engineering assistance
integration and start-up assistance
field service
maintenance support
Technical Training
•
•
•
•
lecture and lab courses
self-paced computer and video-based training
job aids and workstations
training needs analysis
Repair and Exchange Services
•
•
•
•
your only “authorized” source
current revisions and enhancements
worldwide exchange inventory
local support
Publication 17712.180 - July 1996
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com
AllenBradley, a Rockwell Automation Business, has been helping its customers improve
productivity and quality for more than 90 years. We design, manufacture and support a broad
range of automation products worldwide. They include logic processors, power and motion
control devices, operator interfaces, sensors and a variety of software. Rockwell is one of the
world's leading technology companies.
Worldwide representation.
Argentina • Australia • Austria • Bahrain • Belgium • Brazil • Bulgaria • Canada • Chile • China, PRC • Colombia • Costa Rica • Croatia • Cyprus • Czech Republic •
Denmark • Ecuador • Egypt • El Salvador • Finland • France • Germany • Greece • Guatemala • Honduras • Hong Kong • Hungary • Iceland • India • Indonesia •
Ireland • Israel • Italy • Jamaica • Japan • Jordan • Korea • Kuwait • Lebanon • Malaysia • Mexico • Netherlands • New Zealand • Norway • Pakistan • Peru •
Philippines • Poland • Portugal • Puerto Rico • Qatar • Romania • Russia-CIS • Saudi Arabia • Singapore • Slovakia • Slovenia • South Africa, Republic • Spain •
Sweden • Switzerland • Taiwan • Thailand • Turkey • United Arab Emirates • United Kingdom • United States • Uruguay • Venezuela • Yugoslavia
AllenBradley Headquarters, 1201 South Second Street, Milwaukee, WI 53204 USA, Tel: (1) 414 3822000 Fax: (1) 414 3824444
Publication 17712.180 - July 1996
Copyright 1995 AllenBradley Company, Inc. Printed in USA
Supersedes publication 17712.180 - July 1992
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com
Looking for more information?
Visit us on the web at http://www.artisan-scientific.com for more information:
• Price Quotations • Drivers· Technical Specifications. Manuals and Documentation
Artisan Scientific is You~ Source for: Quality New and Certified-Used/Pre:-awned ECJuiflment
• Fast Shipping and DelIve1y
• Tens of Thousands of In-Stock Items
• Equipment Demos
• Hundreds of Manufacturers Supported
• Leasing / Monthly Rentals
Service Center Repairs
Experienced Engineers and Technicians on staff in our
State-of-the-art Full-Service In-House Service Center Facility
• Consignment
InstraView Remote Inspection
Remotely inspect equipment before purchasing with our
Innovative InstraView-website at http://www.instraview.com
We bUy used equipment! We also offer credit for Buy-Backs and Trade-Ins
Sell your excess. underutilized. and idle used equipment. Contact one of our Customer Service Representatives todayl
Talk to a live person: 88EM38-S0URCE fB88-887-68721 I Contact us by email: [email protected] I Visit our website: http://www.artisan-scientific.com
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