Rockwell Automation ControlLogix 1756 Series User manual

ControlLogix
Selection
Guide
1756-L55, 1756-L61, 1756-L62,
1756-L63, 1756-L60M03SE

Logix Controllers Comparison
Common Characteristics
controller tasks:
!continuous
!periodic
!event
user memory
nonvolatile user memory
built-in communication ports
communication options(these options have specific
products and profiles for their
platform - other options are
available via 3rd party products
and generic profiles)
controller redundancy
native I/O
simple motion
integrated motion
mounting and/or installation options
programming languages
1756 ControlLogix™
!32 tasks (only 1
continuous)
!event tasks: supports all
event triggers
1756-L55M12: 750 Kbytes
1756-L55M13: 1.5 Mbytes
1756-L55M14: 3.5 Mbytes
1756-L55M16: 7.5 Mbytes
1756-L55M22: 750 Kbytes
1756-L55M23: 1. 5 Mbytes
1756-L55M24: 3.5Mbytes
1756-L61: 2 Mbytes
1756-L62: 4 Mbytes
1756-L63: 8 Mbytes
1756-L55M12: none
1756-L55M13: none
1756-L55M14: none
1756-L55M16: none
1756-L55M22: yes
1756-L55M23: yes
1756-L55M24: yes
1756-L61:
CompactFlash
1756-L62:
CompactFlash
1756-L63:
CompactFlash
1 port RS- 232 serial
(DF1 or ASCII)
EtherNet/IP
ControlNet
DeviceNet
Data Highway Plus
Universal Remote I/ O
serial
Modbus via ladder routine
DH-485
SynchLink
full redundancy support
1756 ControlLogix I/O
stepper
servo via DeviceNet
analog ac drive
SERCOS interface
analog interface
hydraulic interface
SSI interface
1756 chassis
!relay ladder
!structured text
!function block
!sequential function chart
1769 CompactLogix™
!1769-L35E: 8 tasks
!1769-L32E: 6 tasks
!1769-L31: 4 tasks
!1769-L20, -L30: 4 tasks
!only 1 task can be
continuous
!event tasks: supports
consumed tag trigger and
EVENT instruction
1769-L20: 64 Kbytes
1769-L30: 256 Kbytes
1769-L31: 512 Kbytes
1769-L32E: 750 Kbytes
1769-L35E: 1.5 Mbytes
1769-L20: yes
1769-L30: yes
1769-L31: CompactFlash
1769-L32E: CompactFlash
1769-L35E: CompactFlash
!1769-L20 has 1 RS-232
serial port (DF1 or
ASCII)
!1769-L30, -L31 has 2 RS-
232 ports (one DF1 only,
other DF1 or ASCII)
!1769-L32E, -L35E has 1
EtherNet/IP port and 1
RS-232 serial port (DF1
or ASCII)
EtherNet/IP
DeviceNet
serial
Modbus via ladder routine
DH-485
not applicable
1769 Compact I/O
stepper
servo via DeviceNet
analog ac drive
not applicable
panel mount
DIN rail
!relay ladder
!structured text
!function block
!sequential function chart
1789 SoftLogix5800™
!32 tasks (only 1
continuous)
!event tasks: supports all
event triggers, plus
outbound and Windows
events
1789-L10: 2 Mbytes
3 slots
no motion
1789-L30: 64 Mbytes
5 slots
1789-L60: 64 Mbytes
16 slots
none
depends on personal
computer
EtherNet/IP
ControlNet
DeviceNet
serial
not applicable
none
stepper
servo via DeviceNet
analog ac drive
SERCOS interface
analog interface
none
!relay ladder
!structured text
!function block
!sequential function chart
!external routines
(Windows DLLs
developed using C/C++)
1794 FlexLogix™
!8 tasks (only 1
continuous)
!event tasks: supports
consumed tag trigger and
EVENT instruction
1794-L33: 64 Kbytes
1794-L34: 512 Kbytes
1794-L33: yes
1794-L34: yes
!1 port RS-232 serial
(DF1 or ASCII)
!2 slots for 1788
communication cards
EtherNet/IP
ControlNet
DeviceNet
serial
Modbus via ladder routine
DH-485
controller hot backup via
DeviceNet
1794 FLEX I/O
1797 FLEX Ex I/O
stepper
servo via DeviceNet
analog ac drive
not applicable
panel mount
DIN rail
!relay ladder
!structured text
!function block
!sequential function chart
PowerFlex 700S®with
DriveLogix
!8 tasks (only 1
continuous)
!event tasks: supports axis
and motion event triggers
256 Kbytes
768 Kbytes with memory
expansion
yes (expansion memory)
!1 port RS-232 serial
(DF1 or ASCII)
!1 slot for 1788
communication cards
EtherNet/IP
ControlNet
DeviceNet
serial
Modbus via ladder routine
DH-485
not applicable
1794 FLEX I/O
1797 FLEX Ex I/O
stepper
servo via DeviceNet
analog ac drive
1 full servo
1 feedback axis
embedded in PowerFlex
700S
!relay ladder
!structured text
!function block
!sequential function chart

1
1756-SG001G-EN-P — March 2004
ControlLogix System Overview page 2
Layout the System page 3
Selecting ControlLogix I/O Modules page 7
Selecting Motion Control Requirements page 25
Selecting Network Communications page 31
Selecting Controllers page 47
Selecting Chassis page 63
Selecting Power Supplies page 67
Selecting Software page 71
Summary page 81
Logix Platforms Allen-Bradley Logix platforms provide a single integrated control architecture for
discrete, drives, motion, and process control.
The Logix platforms provide a common control engine, programming software
environment, and communication support across multiple hardware platforms. All
Logix controllers operate with a multitasking, multiprocessing operating system and
support the same set of instructions in multiple programming languages. One
RSLogix™ 5000 programming software package programs all Logix controllers. And
all Logix controllers incorporate the NetLinx Open Network Architecture to
communicate via EtherNet/IP, ControlNet, and DeviceNet networks.

2
1756-SG001G-EN-P — March 2004
ControlLogix
System Overview
What’s New in Version 13:
The ControlLogix®system provides sequential, process, motion, and drive control
together with communications and state-of-the-art I/O in a small, cost-competitive
package. The system is modular, so you can design, build, and modify it efficiently -
with significant savings in training and engineering. A simple ControlLogix system
consists of a stand-alone controller and I/O modules in a single chassis.
Or use the ControlLogix system as a gateway. Include the communication modules you
need for connectivity to other networks. For this use, a controller is not required. The
ControlLogix Gateway integrates into existing PLC-based systems so that users with
existing networks can send or receive messages to or from other networks. For a
more robust system, use:
ymultiple controllers in a single chassis
ymultiple controllers joined across networks
yI/O in multiple platforms that is distributed in many locations and connected over
multiple I/O links
y1756-IB16ISOE and 1756-IH16ISOE modules
to record sequence of events
y1756-IG16 and 1756-OG16 TTL I/O modules
y1756-IA32 high-density, ac input module
y1756-EWEB enhanced web server module
y1756-M03SE 3-axes SERCOS module and
1756-L60M03SE controller with embedded
SERCOS interface
y1756-M02AS SSI feedback motion module
yredundant controller systems now support
two 1756-L55 controllers or one
1756-L6x controller
yredundant controller systems now support
the 1756-ENBT module
y1756-PSCA2 adapter module and 1756-CPR2
cable for redundant power supplies

3
1756-SG001G-EN-P — March 2004
Layout the System Lay out the system by determining the network configuration and the placement of
components in each location. Decide at this time whether each location will have its
own controller.
Place each controller’s I/O on an isolated network to maximize the performance and
to more easily accommodate future network or system configuration changes. If you
plan to share I/O, make sure the I/O is on a network that each controller can access.
Assume that Location A and Location B both require a controller and its own I/O.
Both controllers interact with time critical information. Panel C does not need a
controller and can be a gateway.
For a ControlLogix controller to control I/O modules, both the controller and the I/O
modules must be directly attached to the same network.
Evaluate what communications need to occur between controllers. If there is sporadic
information that is not time critical, use a message-based network such as an
EtherNet/IP (the information portion), Data Highway Plus, or the unscheduled portion
of a ControlNet network. If the information is time critical, such as
produced/consumed tags between controllers, use a ControlNet or EtherNet/IP
network.
I/O Location Controller in Panel A, Chassis 1 Controller in Panel B, Chassis 1
Panel A, Chassis 1 yes yes
Panel A, Chassis 2 yes no
Panel A, Chassis 3 yes no
Panel B, Chassis 1 yes yes
Panel B, Chassis 2 no yes
Panel C, Chassis 1 yes yes

4
1756-SG001G-EN-P — March 2004
Laying out a redundant system
The ControlLogix environment offers different levels of redundancy that you can
design into your system. These systems require additional hardware, so plan
accordingly. You can design redundant:
ymedia for ControlNet
ypower supplies
ycontroller chassis
Redundant ControlNet media
Requires:
y1756-CNBR ControlNet modules
ytwo identical ControlNet links
Redundant power supplies
Requires:
ytwo redundant power supplies, any combination of 1756-PA75R and 1756-PB75R
y1756-PSCA2 chassis adapter module, in place of the standard power supply
ytwo 1756-CPR2 cables to connect the power supplies to the 1756-PSCA adapter
yuser-supplied annunicator wiring to connect the power supplies to the input
modules, if needed

5
1756-SG001G-EN-P — March 2004
Redundant controller
chassis
Requires:
yone or two 1756-L55 controllers or one 1769-L6x controller in each redundant
chassis (contact your Rockwell Automation representative for the specific
firmware revision)
yat least one, but no more than five, 1756-CNB(R) series D, version 5.23 (or
greater) communication modules in each redundant chassis
yone 1757-SRM module in each redundant chassis
ythe redundant chassis can contain a 1756-ENBT communication module, but no
other I/O or communication modules can be in the redundant chassis
All I/O must be remote from the redundant controllers. ControlLogix redundancy
works with remote 1756 I/O, FLEX I/O, drives, operator interfaces, or any other
devices that can communicate with a ControlLogix controller over a ControlNet link.
To connect to other networks, bridge through another ControlLogix chassis (not one
of the redundant controller chassis)

6
1756-SG001G-EN-P — March 2004
Use the following checklist as a guide to completing your own system specification.
The inside of the back cover of this selection guide is a worksheet you can use to
record your selections.
99Step
1 Select I/O devices
Use a spreadsheet to record:
ylocation of the device
ynumber of points needed
yappropriate catalog number
ynumber of points available per module
ynumber of modules
2 Select motion control and drives requirements
To the I/O spreadsheet, add the number of required motion
modules.
3 Select communication modules
To the I/O spreadsheet, add the number of required
communication modules.
4 Select controllers
Select the appropriate controller based on:
yrequired controller tasks
ynumber of I/O points needed
ynumber of communication cards needed
yrequired controller memory
5 Select chassis
Determine the number of chassis you need.
6 Select power supplies
On the module spreadsheet, calculate power requirements.
7 Select software
Determine the software products you need to configure and
program your application.Based on the system design, determine
the software products you need to configure and program your
application.
See
I/O module specifications page 8
Wiring systems page 14
Placing I/O modules page 23
How I/O modules operate page 24
Selecting controller ownership page 24
Motion overview page 25
SERCOS interface modules page 27
Analog interface modules page 29
Network overview page 31
EtherNet/IP specifications page 33
ControlNet specifications page 35
DeviceNet specifications page 38
DH+/RIO specifications page 39
Foundation Fieldbus specifications page 40
Serial specifications page 40
DH-485 specifications page 42
SynchLink specifications page 43
AutoMax specifications page 45
Accessing the controller remotely page 46
Controller specifications page 47
Determining memory requirements page 49
Determining battery requirements page 50
Controlling devices page 51
Communicating with other devices page 52
Communicating with drives page 53
How a Logix system uses tasks page 54
How a Logix system uses connections page 57
Chassis specifications page 63
Power supply specifications page 67
Available software products page 71
Programming software page 72
Communication software page 74
Network configuration software page 75
Emulation software page 76
Training software page 77
Visualization software and products page 79

7
1756-SG001G-EN-P — March 2004
Step 1 - Select:
yI/O modules - some modules have field-side
diagnostics, electronic fusing, or
individually isolated inputs/outputs
ya remote terminal block (RTB) or wiring
system for each I/O module
yPanelConnect modules and cables if
connecting input modules to sensors
Selecting ControlLogix
I/O Modules
The ControlLogix architecture provides a wide range of input and output modules to
span many applications, from high-speed discrete to process control. The
ControlLogix architecture uses producer/consumer technology, which allows input
information and output status to be shared among multiple ControlLogix controllers.
Each ControlLogix I/O module mounts in a ControlLogix chassis and requires either
a removable terminal block (RTB) or a 1492 interface module (IFM) to connect all
field-side wiring. RTBs and IFMs are not included with the I/O modules. They must be
ordered separately.
1756 Digital I/O
Modules
The 1756 digital I/O modules support:
ywide variety of voltage interface capabilities
yisolated and non-isolated module types
ypoint-level output fault states
ychoice of direct-connect or rack-optimized communications
yfield-side diagnostics on select modules
In addition, you can select these types of digital I/O modules:
Digital I/O Type
diagnostic
electronic fusing
individually isolated
Description
These modules provide diagnostic features to the point level. These modules have a “D”
at the end of the catalog number.
These modules have internal electronic fusing to prevent too much current from flowing
through the module. These modules have an “E” at the end of the catalog number.
These modules have individually isolated inputs or outputs.
These modules have an “I” at the end of the catalog number.

8
1756-SG001G-EN-P — March 2004
Digital ac input modules
Digital ac output modules
Cat. No.
1756-OA8
1756-OA8D
1756-OA8E
1756-OA16
1756-OA16I
1756-ON8
Number of
Outputs
8
8
diagnostic
8
electronic fusing
16
16
individually
isolated
8
Voltage
Category
120/240V ac
120V ac
120V ac
120/240V ac
120/240V ac
240V ac
Operating
Voltage
74...265V ac
74...132V ac
74...132V ac
74...265V ac
74...265V ac
10...30V ac
Output Current
Rating, per
Point, Max.
2 A @ 60 °C
(Linear derating)
1 A @ 30 °C
(Linear derating)
0.5 A @ 60 °C
(Linear derating)
2 A @ 60 °C
0.5 A @ 60 °C
2 A @ 30 °C
(Linear derating)
1 A @ 60 °C
(Linear derating)
2 A @ 60 °C
Output Current
Rating, per
Module, Max.
5 A @ 30 °C
(Linear derating)
4 A @ 60 °C
(Linear derating)
8 A @ 30 °C
(Linear derating)
4 A @ 60 °C
(Linear derating)
8 A @ 30 °C
(Linear derating)
4 A @ 60 °C
(Linear derating)
4 A @ 60 °C
5 A @ 30 °C
(Linear derating)
4 A @ 60 °C
(Linear derating)
5 A @ 30 °C
4 A @ 60 °C
(Linear derating)
Removable
Terminal Block
Housing
1756-TBNH
1756-TBSH
1756-TBNH
1756-TBSH
1756-TBNH
1756-TBSH
1756-TBNH
1756-TBSH
1756-TBCH
1756-TBS6H
1756-TBNH
1756-TBSH
Backplane
Current (mA) at
5V
200 mA
175 mA
200 mA
400 mA
300 mA
200 mA
Backplane
Current (mA) at
24V
2mA
250 mA
250 mA
2mA
3mA
2mA
Power
Dissipation,
Max.
5.1 W @ 60 °C
5.3 W @ 60 °C
5.5 W @ 60 °C
6.5 W @ 60 °C
5.5 W @ 60 °C
5.1 W @ 60 °C
Cat. No.
Number of
Inputs
Voltage, On-
State Input,
Nom.
Operating
Voltage
Input Delay
Time, ON to
OFF
Current, On-
State Input,
Min.
Current, On-
State Input,
Max.
Current, Off-
State Input,
Max.
Removable
Terminal
Block
Housing
Backplane
Current (mA)
at 5V
Backplane
Current (mA)
at 24V
Power
Dissipation,
Max.
1756-IA8D 8
diagnostic 120V ac 79...132V ac
Programmable
filter: 9 ms &
18 ms
5 mA @ 79V
ac
16 mA @ 132V
ac 2.5 mA 1756-TBNH
1756-TBSH 100 mA 3 mA 4.5 W @ 60 °C
1756-IA16 16 120V ac 74...132V ac
Programmable
filter: 9 ms &
18 ms
5 mA @ 74V
ac
13 mA @ 132V
ac 2.5 mA 1756-TBNH
1756-TBSH 105 mA 2 mA 5.8 W @ 60 °C
1756-IA16I
16
individually
isolated
120V ac 79...132V ac
Programmable
filter: 9 ms &
18 ms
5 mA @ 79V
ac 47…63Hz
15 mA @ 132V
ac, 47…63HZ 2.5 mA 1756-TBCH
1756-TBS6H 125 mA 3 mA 4.9 W @ 60 °C
1756-IA32 32 120V ac 74...132V ac
Programmable
filter: 9ms &
18 ms
5 mA @ 74V
ac
10 mA @ 132V
ac 2.5 mA 1756-TBCH
1756-TBS6H 165 mA 2 mA 6.1 W @ 60°C
1756-IM16I
16
individually
isolated
240V ac 159...265V ac
Programmable
filter: 9 ms or
18 ms
5 mA @ 159V
ac, 60Hz
13 mA @ 265V
ac, 60Hz 2.5 mA 1756-TBCH
1756-TBS6H 100 mA 3 mA 5.8 W @ 60 °C
1756-IN16 16 24V ac 10...30V ac
Programmable
filter: 9 ms or
18 ms
5 mA @ 10V
ac, 60 Hz
1.2 mA @ 30V
ac, 60 Hz 2.75 mA 1756-TBNH
1756-TBSH 100 mA 2 mA 5.1 W @ 60 °C

9
1756-SG001G-EN-P — March 2004
Digital dc input modules
Cat. No.
Number of
Inputs
Voltage, On-
State Input,
Nom.
Operating
Voltage
Input Delay
Time, ON to
OFF
Current, On-
State Input,
Min.
Current, On-
State Input,
Max.
Current, Off-
State Input,
Max.
Removable
Terminal
Block
Housing
Backplane
Current
(mA) at 5V
Backplane
Current
(mA) at 24V
Power
Dissipation,
Max.
1756-IB16 16 12/24V dc
sink 10...31.2V dc
2 ms
hardware +
filter time (0,
1, 2, 9, or 18
ms)
2.0 mA @ 10V
dc
10 mA @
31.2V dc 1.5 mA 1756-TBNH
1756-TBSH 100 mA 2 mA 5.1 W @ 60
°C
1756-IB16D 16
diagnostic
12/24V dc
sink 10...30V dc
4 ms
hardware +
filter time (0,
1, 2, 9, or 18
ms)
2 mA @ 10V
dc
13 mA @ 30V
dc 1.5 mA/point 1756-TBCH
1756-TBS6H 150 mA 3 mA 5.8 W @ 60
°C
1756-IB16I
16
individually
isolated
12/24V dc
sink/source 10...30V dc
4 ms
hardware +
filter time (0,
1, 2, 9, or 18
ms)
10 mA @ 30 V
dc
2 mA @ 10V
dc 1.5 mA 1756-TBCH
1756-TBS6H 100 mA 3 mA 5 W @ 60 °C
1756-IB16ISOE✶
16
individually
isolated;
sequence of
events
24/48V dc
sink/source 10...55V dc
50 µs
hardware +
filter time
(0...50 ms)
5.5 mA @ 55V
dc
2 mA @ 10V
dc 1.5 mA 1756-TBCH
1756-TBS6H 275 mA 2 mA 5.5 W @ 60
°C
1756-IB32 32 12/24V dc
sink 10...31.2V dc
420 µs +
filter time (0,
1, 2, 9, or 18
ms)
5.5 mA 2 mA 1.5 mA 1756-TBCH
1756-TBS6H 120 mA 2 mA 6.2 W @ 60
°C
1756-IC16 16 48V dc
sink 30...60V dc
4 ms
hardware +
filter time (0,
1, 2, 9, or 18
ms)
7 mA @ 60V
dc
2 mA @ 30V
dc 1.5 mA 1756-TBNH
1756-TBSH 100 mA 3 mA 5.2 W @ 60
°C
1756-IG16
16 (8
points/commo
n)
5V dc
TTL source 4.5...5.5V dc
.25 ms
hardware +
filter time (0,
1, 2, 9, or 18
ms)
4.1 mA @ 5V
dc 4.1 mA 1756-TBNH
1756-TBSH 110 mA 2 mA 1.4 W @ 60
°C
1756-IH16I
16
individually
isolated
125V dc
sink/source 90...146V dc
6 ms
hardware +
filter time (0,
1, 2, 9, or 18
ms)
1 mA @ 90V
dc
3 mA @ 146V
dc 0.8 mA 1756-TBCH
1756-TBS6H 125 mA 3 mA 5 W @ 60 °C
1756-IH16ISOE✶
16
individually
isolated;
sequence of
events
125V dc
sink/source 90...140V dc
75 µs
hardware +
filter time
(0...50 ms)
1.15 mA @
90V dc
1.85 mA @
140V dc 0.3 mA 1756-TBCH
1756-TBS6H 275 mA 2 mA 5.5 W @ 60
°C
1756-IV16 16 12/24V dc
source 10...30V dc
2 ms
hardware +
filter time (0,
1, 2, 9, or 18
ms)
2.0 mA @ 10V
dc
10 mA @ 30V
dc 1.5 mA 1756-TBNH
1756-TBSH 110 mA 2 mA 5.41 W @ 60
°C
1756-IV32 32 12/24V dc
source 10...30V dc
2 ms
hardware +
filter time (0,
1, 2, 9, or 18
ms)
3.5 mA @ 30V
dc
2 mA @ 10V
dc 1.5 mA 1756-TBCH
1756-TBS6H 120 mA 2 mA 4.1 W @ 60
°C
✶If you use 1756-IB16ISOE or 1756-IH16ISOE modules in a remote rack, you must use a 1756-SYNCH SynchLink module to coordinate system time.

10
1756-SG001G-EN-P — March 2004
Digital contact output modules
Digital dc output modules
Cat. No.
Number of
Outputs
Voltage
Category
Operating
Voltage
Output Current
Rating, per
Point, Max.
Output Current
Rating, per
Module, Max.
Removable
Terminal Block
Housing
Backplane
Current (mA) at
5V
Backplane
Current (mA) at
24V
Power
Dissipation,
Max.
1756-OB8 812/24V dc
source 10...30V dc 2.0 A @ 60 °C 8.0 A @ 60 °C 1756-TBNH
1756-TBSH 165 mA 2 mA 2.5 W @ 60 °C
1756-OB8EI
8
electronically
fused,
individually
isolated
12/24V dc
sink/source 10...30V dc 2 A @ 60 °C
16.0 A @ 55 °C
(Linear derating)
10.0 A @ 60 °C
1756-TBCH
1756-TBS6H 250 mA 2 mA 4.7 W @ 60 °C
1756-OB16D 16
diagnostic
24V dc
source 19.2...30V dc
2 A @ 30 °C
(Linear derating)
1 A @ 60 °C
(Linear derating)
8 A @ 30 °C
(Linear derating)
4 A @ 60 °C
(Linear derating)
1756-TBCH
1756-TBS6H 250 mA 140 mA 3.3 W @ 60 °C
1756-OB16E
16
electronically
fused
12/24V dc
source 10...31.2V dc 1 A @ 60 °C 8 A @ 60 °C 1756-TBNH
1756-TBSH 250 mA 2 mA 4.1 W @ 60 °C
1756-OB16I
16
individually
isolated
12/24V dc
sink/source 10...30V dc
2 A @ 30 °C
(Linear derating)
1 A @ 60 °C
(Linear derating)
8 A @ 30 °C
(Linear derating)
4 A @ 60 °C
(Linear derating)
1756-TBCH
1756-TBS6H 350 mA 3 mA 3.6 W @ 60 °C
1756-OB16IS
16
individually
isolated;
8
scheduled
12/24V dc
sink/source 10...30V dc
2 A @ 30 °C
1 A @ 60 °C
(Linear derating)
8 A @ 30 °C
4 A @ 60 °C
(Linear derating)
1756-TBCH
1756-TBS6H 250 mA 3 mA 3.6 W @ 60 °C
1756-OB32 32 12/24V dc
source 10...31.2V dc
0.5 A @ 50 °C
(Linear derating)
0.35 A @ 60 °C
16 A @ 50 °C
(Linear derating)
10 A @ 60 °C
1756-TBCH
1756-TBS6H 300 mA 2 mA 4.8 W @ 60 °C
1756-OC8 848V dc
source 30...60V dc 2.0 A @ 60 °C 8.0 A @ 60 °C 1756-TBNH
1756-TBSH 165 mA 2 mA 4.9 W @ 60 °C
1756-OG16 16 5V dc
TTL 4.5...5.5V dc 24 mA @ 60 °C 384 mA @ 60 °C 1756-TBNH
1756-TBSH 210 mA 2 mA 1.5 W @ 60 °C
1756-OH8I
8
individually
isolated
120V dc
sink/source 90...146V dc 2 A @ 60 °C 8 A @ 60 °C 1756-TBCH
1756-TBS6H 210 mA 2 mA 3.3 W @ 60 °C
1756-OV16E
16
electronically
fused
12/24V dc
sink 10...30V dc 1 A @ 60 °C 8 A @ 60 °C 1756-TBNH 1756-TBSH 210 mA 2 mA 6.72 W @ 60 °C
1756-OV32E
32
electronically
fused
12/24V dc
sink 10...30V dc
0.5 A @ 50 °C
(Linear derating)
0.35 A @ 60 °C
16.0 A @ 50 °C
(Linear derating)
10.0 A @ 60 °C
1756-TBCH
1756-TBS6H 390 mA 2 mA 5.88 W @ 60 °C
Cat. No.
1756-OW16I
1756-OX8I
Number of
Outputs
16
individually
isolated
8
individually
isolated
Output Delay
Time, ON to OFF,
Max.
10 ms
13 ms
Type of Contact
Output
16 N.O.
1 set of form-C
contacts for each
output
Operating
Voltage
10...265V ac
5...150V dc
10...265V ac
5...150V dc
Output Current
2 A @ 5…30V dc
0.5 A @ 48V dc
0.25 A @ 125V dc
2 A @ 125/240V
ac
2 A @ 5…30V dc
0.5 A @ 48V dc
0.25 A @ 125V dc
2 A @ 125/240V
ac
Removable
Terminal Block
Housing
1756-TBCH
1756-TBS6H
1756-TBCH
1756-TBS6H
Backplane
Current (mA) at
5V
150 mA
100 mA
Backplane
Current (mA) at
24V
150 mA
100 mA
Power
Dissipation,
Max.
4.5 W @ 60 °C
3.1 W @ 60 °C

11
1756-SG001G-EN-P — March 2004
The 1756 analog I/O modules support:
yon-board data alarming
yscaling to engineering units
yreal-time channel sampling
yIEEE 32-bit floating point or 16-bit integer data formats
1756 Analog I/O
Modules
Cat. No. Number of Inputs
Number of
Outputs
Input Resolution,
Bits
Sensors
Supported
Removable
Terminal Block
Housing
Backplane
Current (mA) at
5V
Backplane
Current (mA) at
24V
Power
Dissipation, Max.
1756-IF8
8 single-ended, 4
differential, 2 high-
speed differential

±10.25V
0...5.125V
0...10.25V
1756-TBCH
1756-TBS6H 150 mA 40 mA 1.73 W - Voltage
2.33 W - Current
1756-IF6CIS 6 isolated, current
sourcing 0...21mA Range 1756-TBNH
1756-TBSH 250 mA 275 mA 5.1 W @ 60 °C
1756-IF6I 6 isolated 
±10.5V
0...5.25V
0...10.5V
1756-TBNH
1756-TBSH 250 mA 100 mA 3.7 W - Voltage
4.3 W - Current
1756-IF16
8 differential, 4 high-
speed differential, 16
single-ended

±10.25V
0...5.125V
0...10.25V
1756-TBCH
1756-TBS6H 150 mA 65 mA 2.3 W - Voltage
3.9 W - Current
1756-IF4FXOF2F
4 high-speed, sub-
millisecond,
differential
2 high-speed voltage
or current
Inputs
±10.5V
0...5.25V
0...10.5V
Outputs
±10.5V
1756-TBCH
1756-TBS6H 375 mA 100 mA 4.3 W - Voltage
4.7 W - Current
1756-IR6I 6 isolated RTD 
100, 200, 500,
1000ΩPlatinum,
alpha=385
100, 200, 500,
1000ΩPlatinum,
alpha=3916
120ΩNickel,
alpha=672
100, 120, 200,
500ΩNickel,
alpah=618
10ΩCopper
Resistance 4…4020
Ω
100, 200, 500, 1000
ΩPlatinum, alpha =
385
100, 200, 500, 1000
ΩPlatinum, alpha =
3916
120 ΩNickel, alpha
= 672
100, 120, 200, 500
ΩNickel, alpha =
618
10 ΩCopper
1756-TBNH
1756-TBSH 250 mA 125 mA 4.3 W
1756-IT6I
6 isolated
thermocouple
1 CJC
-12 mV... +78 mV
-12 mV... +38 mV
B, E, J, K, R, S, T, N,
C
1756-TBNH
1756-TBSH 250 mA 125 mA 4.3 W
1756-IT6I2
6 isolated
thermocouple
2 CJC
-12 mV... +78 mV
-12 mV... +38 mV
B, E, J, K, R, S, T, N,
C, L, D
1756-TBNH
1756-TBSH 200 mA 120 mA 3.9 W
1756-OF4 4 voltage or current 1756-TBNH
1756-TBSH 150 mA 120 mA 3.25 W - 4 channel
current
1756-OF6CI 6 isolated 1756-TBNH
1756-TBSH 250 mA 300 mA†
5.5 W (0…550 Ω
loads)
6.1 W (551…1000
Ωloads)
1756-OF6VI 6 isolated 1756-TBNH
1756-TBSH 250 mA 175 mA 4.85 W
1756-OF8 8 voltage or current 1756-TBNH
1756-TBSH 150 mA 210 mA 4.92 W - 4 channel
current

12
1756-SG001G-EN-P — March 2004
1756 Specialty I/O
Modules 1756-CFM configurable flow meter
The 1756-CFM module provides totalizer mode for metering applications, or high-
speed frequency measurements for speed or rate control applications, on two
channels connected to flowmeters. Both Fill and Prover functions are supported
within resettable or nonresettable totalizer mode. A 12-segment K-factor correction
table makes it easy to scale any turbine flowmeter and AGA 7 compensation is
available.
The module supports two configurable outputs that can be connected to one or both
channels and can be triggered on:
yflow or frequency
yacceleration
yfull flow state
ytrickle flow state
yprover run state
yprover range state
The module interfaces devices such as:
ymagnetic pickup flow meters
y4-40V dc pulses (TTL compatible)
yproximity probes
Cat. No. Mode of Operation
Number of Inputs per
Channel
Voltage, Flowmeter
Input
Removable Terminal
Block Housing
Backplane Current
(mA) at 5V
Backplane Current
(mA) at 24V
Power Dissipation,
Max.
1756-CFM
Totalizer fill and prover
High-Resolution 100 kHz
max.
Frequency 0.0005 Hz
resolution
2 – Flowmeter (F) Input
– used for all modes
2 – Gate Input – used in
Totalizer Mode for
Prover/Store Count
± 30V - Selectable input
thresholds of 50 mV,
1.3V & 4V:
± 30V peak
unterminated open
circuit voltage –
Magnetic Pickup
TTL Compatible – Input
Voltage greater than 1.3V
dc is Logic 1 and - 0.7V
dc…1.3V dc is Logic 0
12…24V dc powered
preamp output - 4V dc
threshold
1756-TBNH
1756-TBSH 300 mA 6 mA 6 W @ 60°C

13
1756-SG001G-EN-P — March 2004
1756-HSC high speed counter
The 1756-HSC module provides 4 high-speed, output-switching, ON-OFF windows.
The module uses pulses for counting and frequency. The module interfaces with pulse
devices and encoders, such as:
yphotoswitch series 10,000 photoelectric sensors
ybulletin 872 3-wire DC proximity sensors
ybulletin 845 incremental encoders
The 1756-HSC module can update data every 2ms. The module is most effective when
you use a single sensor for each of the two channels on the module. If necessary, you
can connect a single sensor to multiple channels or modules.
1756-PLS programmable limit switch
The 1756-PLS module supports enhanced packaging applications where you require:
ydeterministic module operation for operations up to 1500 parts per minute (PPM)
ydetection of 1.08 degrees of rotation at 1800 RPM
yfast switching of ON-OFF windows
ymulti-turn capabilities using resolvers
ydirect drive on most pneumatic solenoid or glue guns
The module accepts any R3-style resolver, such as the bulletin 846 resolvers. The
module provides excitation to the resolver at 5K Hz @ 7.0V ac and directly connects
to the sine and cosine outputs of the resolver.
Cat. No.
Mode of
Operation
Number of
Counters
Inputs per
Counter Count Range
Number of
Outputs
Removable
Terminal Block
Housing
Backplane
Current (mA) at
5V
Backplane
Current (mA) at
24V
Power
Dissipation,
Max.
1756-HSC
Counter - 1 MHz
max.
Rate Measurement
- 500 kHz max.
Encoder - 250 kHz
max.
Debounce filter -
70 Hz max.
23 (A, B, Z for
Gate/Reset) 0…16, 777, 214 4 1756-TBCH
1756-TBS6H 300 mA 3 mA 5.6 W @ 60°C
Cat. No.
1756-PLS
Mode of Operation
Requires 3 contiguous
slots in chassis
Number of Inputs
16
Number of Outputs
16
Removable Terminal
Block Housing
Requires 3 RTBs
1756-TBNH or 1756-
TBSH
Backplane Current
(mA) at 5V
1000 mA
Backplane Current
(mA) at 24V
125 mA
Power Dissipation,
Max.
25.7 W @ 30 °C
21.3 W @ 60 °C

14
1756-SG001G-EN-P — March 2004
1756 Removable
Terminal Blocks
Removable terminal blocks (RTBs) provide a flexible interconnection between your
plant wiring and 1756 I/O modules. The RTB plugs into the front of the I/O module.
The type of module determines which RTB you need. You choose screw-clamp or
spring-clamp RTBs.
RTBs are not shipped with I/O modules. You must order them separately. The
standard housing on the front of the wiring arm is not deep enough for 14 AWG
wiring. If you plan to use 14 AWG wiring, also order the extended housing.
1492 Wiring
Systems As an alternative to buying RTBs and connecting the wires yourself, you can buy a
wiring system of:
yinterface modules (IFMs) that mount on DIN rails provide the output terminal
blocks for the I/O module. Use the IFMs with the pre-wired cables that match the
I/O module to the interface module.
yI/O-module-ready cables. One end of the cable assembly is an RTB that plugs into
the front of the I/O module. The other end has individually color-coded conductors
that connect to a standard terminal block.
Cat. No. Description Weight
1756-TBNH screw-clamp with 20-pin connection 0.1 kg (0.3 lb)
1756-TBSH spring-clamp with 20-pin connection 0.1 kg (0.3 lb)
1756-TBCH screw-clamp with 36-pin connection 0.1 kg (0.3 lb)
1756-TBS6H spring-clamp with 36-pin connection 0.1 kg (0.3 lb)
1756-TBE extended housing; required for additional wiring space if using 14 AWG wiring 0.05 kg (0.1 lb)

15
1756-SG001G-EN-P — March 2004
Feed through IFMs for 20-pin 1756 digital I/O modules
LED indicating IFMs for 20-pin 1756 digital I/O modules
Cat. No. Description IA8D IA16 IB16 IC16 IN16 OA8 OA8D OA8E OA16 OA16E OB8 OB16E OC8 ON8
1492-IFM20F standard U XXXXUUUX UXUU
1492-IFM20FN narrow standard U XXXXUUUX UXUU
1492-IFM20F-2 extra terminals U XXXXUUUX UXUU
1492-IFM20F-3 3-wire sensor type input
devices XXXX
1492-XIMF-2 feed through expander with
eight feed-through channels✶XX
Find the column for the digital I/O module. Follow the column down to see what digital IFMs are compatible with the I/O module as indicated by a letter code. When you select the IFM, use the letter code from this chart to find
the compatible cable in the following table for digital pre-wired cabled. The letter code must match the last character of the catalog number for the cable.
✶One expander module is connected to a master to provide a total of 16 outputs. An extender cable is included with each expander to connect it to the master.
Cat. No. Description IA8D IA16 IB16 IC16 IN16 OA8 OA8D OA8E OA16 OA16E OB8 OB16E OC8 ON8
1492-IFM20D24 standard with 24V ac/dc LEDs X X X
1492-IFM20D24N narrow standard with 24V
ac/dc LEDs XX X
1492-IFM20D120 standard with 120V ac LEDs U X
1492-IFM20D120N narrow standard with 120V
ac/dc LEDs UX X
1492-IFM20D24-2 24V ac/dc LEDS and extra
terminals for outputs X
1492-IFM20D24A-2 24V ac/dc LEDS and extra
terminals for inputs XX
1492-IFM20D120-2 120V ac/dc LEDS and extra
terminals for outputs X
1492-IFM20D120A-2 120V ac LEDs and extra
terminals for inputs UX
1492-IFM20D24-3 3-wire sensor with 24V ac/dc
LEDs XX
1492-IFM20DS24-4
isolated with 24/48V ac/dc
LEDs and 4 terminals for
outputs
WWW
1492-IFM20DS120-4 isolated with 120V ac LEDs
and 4 terminals for outputs WV V
1492-IFM20D240-2 240V ac LEDs and extra
terminals for outputs
1492-IFM20D240A-2 240V ac LEDs and extra
terminals for inputs
Find the column for the digital I/O module. Follow the column down to see what digital IFMs are compatible with the I/O module as indicated by a letter code. When you select the IFM, use the letter code from this chart to find
the compatible cable in the following table for digital pre-wired cabled. The letter code must match the last character of the catalog number for the cable.

16
1756-SG001G-EN-P — March 2004
Fusible IFMs for 20-pin 1756 digital I/O modules
Relay IFMs for 20-pin 1756 digital I/O modules
Cat. No. Description IA8D IA16 IB16 IC16 IN16 OA8 OA8D OA8E OA16 OA16E OB8 OB16E OC8 ON8
1492-IFM20F-F-2 extra terminals for outputs X X
1492-IFM20F-F24-2
extra terminals with 24V
ac/dc blown fuse indicators
for outputs
X
1492-IFM20F-F120-2
extra terminals with 120V ac
blown fuse indicators for
outputs
X
1492-IFM20F-F240-2
extra terminals with 240V ac
blown fuse indicators for
outputs
X
1492-IFM20F-F24A-2
extra terminals with 24V
ac/dc blown fuse indicators
for inputs
XX
1492-IFM20F-F120A-2
extra terminals with 120V ac
blown fuse indicators for
inputs
X
1492-IFM20F-FS-2 isolated with extra terminals
for outputs WV V W WW
1492-IFM20F-FS24-2
isolated with extra terminals
and 24V ac/dc blown fuse
indicators for outputs
WWW
1492-IFM20F-FS24A-4
isolated with 4 terminals and
24V ac/dc blown fuse
indicators for inputs
1492-IFM20F-FS120-2
isolated with extra terminals
with 120V ac blown fuse
indicators for outputs
WV V
1492-IFM20F-FS120-4
isolated with 4 terminals with
120V ac blown fuse indicators
for outputs
WV V
1492-IFM20F-FS120A-4
isolated with 4 terminals with
120V ac blown fuse indicators
for inputs
U
1492-IFM20F-FS240-4
isolated with 4 terminals with
240V ac blown fuse indicators
for outputs
W
1492-XIMF-F24-2
expander with eight 24V dc
channels with blown fuse
indicators✶X
1492-XIMF-F120-2
expander with eight 120V ac
channels with blown fuse
indicators✶X
Find the column for the digital I/O module. Follow the column down to see what digital IFMs are compatible with the I/O module as indicated by a letter code. When you select the IFM, use the letter code from this chart to find
the compatible cable in the following table for digital pre-wired cabled. The letter code must match the last character of the catalog number for the cable.
✶One expander module is connected to a master to provide a total of 16 outputs. An extender cable is included with each expander to connect it to the master.
Cat. No. Description IA8D IA16 IB16 IC16 IN16 OA8 OA8D OA8E OA16 OA16E OB8 OB16E OC8 ON8
1492-XIM2024-8R 20-pin master with eight 24V
dc relays X
1492-XIM2024-8R 20-pin master with eight 24V
dc relays X
1492-XIM24-8R expander with eight 24V dc
relays✶X
1492-XIM120-8R expander with eight 120V ac
relays✶X
Find the column for the digital I/O module. Follow the column down to see what digital IFMs are compatible with the I/O module as indicated by a letter code. When you select the IFM, use the letter code from this chart to find
the compatible cable in the following table for digital pre-wired cabled. The letter code must match the last character of the catalog number for the cable.
✶One expander module is connected to a master to provide a total of 16 outputs. An extender cable is included with each expander to connect it to the master.

17
1756-SG001G-EN-P — March 2004
Feed through IFMs for 36-pin 1756 digital I/O modules
LED indicating IFMs for 36-pin 1756 digital I/O modules
Cat. No. Description IA16I IB16D IB16I IB32 IH16I IM16I OA16I OB8EI OB16D OB16E OB16I OB32 OH8I OW16I OX8I
1492-IFM40F standard YYYZY YYY YZYYY
1492-IFM40F-2 extra terminals Y Z Y Z
1492-IFM40F-3 3-wire sensor type input
devices Z
1492-XIMF-2 expander with eight feed-
through channels✶X
Find the column for the digital I/O module. Follow the column down to see what digital IFMs are compatible with the I/O module as indicated by a letter code. When you select the IFM, use the letter code from this chart to find
the compatible cable in the following table for digital pre-wired cabled. The letter code must match the last character of the catalog number for the cable.
✶One expander module is connected to a master to provide a total of 16 outputs. An extender cable is included with each expander to connect it to the master.
Cat. No.
1492-IFM40D24
1492-IFM40D24-2
1492-IFM40D24A-2
1492-IFM40D120-2
1492-IFM40D120A-2
1492-IFM40D24-3
1492-IFM40DS24-4
1492-IFM40DS24A-4
1492-IFM40DS120-4
1492-IFM40DS120A-4
1492-IFM40DS240A-4
Find the column for the digital I/O module. Follow the column down to see what digital IFMs are compatible with the I/O module as indicated by a letter code. When you select the IFM, use the letter code from this chart to find
the compatible cable in the following table for digital pre-wired cabled. The letter code must match the last character of the catalog number for the cable.
Description
standard with 24V ac/dc
LEDs
24V ac/dc LEDs and extra
terminals for outputs
24V ac/dc LEDs and extra
terminals for inputs
120V ac LEDs and extra
terminals for outputs
120V ac LEDs and extra
terminals for inputs
3-wire sensor with 24V
ac/dc LEDs for inputs
isolated with 24/48V ac/dc
LEDs and 4 terminals per
output
isolated with 24/48V ac/dc
LEDs and 4 terminals per
input
isolated with 120V ac LEDs
and 4 terminals per output
isolated with 120V ac LEDs
and 4 terminals per input
isolated with 240V ac LEDs
and 4 terminals per output
IA16I
Y
IB16D
Y
IB16I
Y
IB32
Z
Z
Z
IH16I IM16I
Y
OA16I
Y
OB8EI
Y
OB16D
Y
OB16E OB16I
Y
OB32
Z
Z
OH8I OW16I
Y
Y
OX8I
Y
Y

18
1756-SG001G-EN-P — March 2004
Fusible IFMs for 36-pin 1756 digital I/O modules
Cat. No. Description IA16I IB16D IB16I IB32 IH16I IM16I OA16I OB8EI OB16D OB16E OB16I OB32 OH8I OW16I OX8I
1492-IFM40F-F-2 extra terminals for outputs Z
1492-IFM40F-F24-2
extra terminals with 24V
ac/dc blown fuse indicators
for outputs
Z
1492-IFM40F-F120-2
extra terminals with 120V
ac blown fuse indicators for
outputs
1492-IFM40F-FS-2 isolated with extra terminals
for outputs YYYYYYY
1492-IFM40F-FS24-2
isolated with extra terminals
and 24V ac/dc blown fuse
indicators for outputs YY Y YY
1492-IFM40F-FS24-4
isolated with 24V ac/dc
blown fuse indicators and 4
terminals per output
YY Y YY
1492-IFM40F-FS120-2
isolated with extra terminals
and 120V ac blown fuse
indicators for outputs
YYYY
1492-IFM40F-FS120-4
isolated with 120V ac blown
fuse indicators and 4
terminals per output
YYY
1492-IFM40F-FS240-4
isolated with 240V ac blown
fuse indicators and 4
terminals per output
YYY
1492-IFM40F-FS24A-4
isolated with 24V ac/dc
blown fuse indicators and 4
terminals per input
YY
1492-IFM40F-FS120A-4
isolated with 120V ac blown
fuse indicators and 4
terminals per input
YY
1492-XIMF-F24-2
fusible expander with eight
24V dc channels with blown
fuse indicators✶X
1492-XIMF-F120-2
fusible expander with eight
120V ac channels with
blown fuse indicators✶
Find the column for the digital I/O module. Follow the column down to see what digital IFMs are compatible with the I/O module as indicated by a letter code. When you select the IFM, use the letter code from this chart to find
the compatible cable in the following table for digital pre-wired cabled. The letter code must match the last character of the catalog number for the cable.
✶One expander module is connected to a master to provide a total of 16 outputs. An extender cable is included with each expander to connect it to the master.