Allen-Bradley C Series User manual

POINT I/O is a trademark of Rockwell Automation1
DeviceNet is a trademark of ODVA, Inc. Publication 1734-IN051D-EN-P - April 2004
Installation Instructions
POINT I/O Input Module
(Cat. No. 1734-IB2, -IB4 and -IB8, Series C)
Description Description
1Mounting Base16RTB Removal Handle
2Mechanical Keying (orange) 7Removable Terminal Block (RTB)1
3Module Wiring Diagram 8DIN Rail Locking Screw (orange)
4Module Locking Mechanism 9Slide-in Writable Label
5Insertable I/O Module 10 Interlocking Side Pieces
1Wiring Base Assembly consists of item 1) mounting base, 1734-MB and item 7) removable
terminal block, 1734-RTB or -RTBS.
Module
Status
Network
Status
NODE:
0
1
2
3
2
3
4
5
1
7
6
8
9
10
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2POINT I/O Input Module
Publication 1734-IN051D-EN-P - April 2004
This Series C product can be used with DeviceNet and PROFIBUS
adapters. It can be used with ControlNet and Ethernet adapters using
RSLogix 5000, version 11 (or higher) software.
Important User Information
Solid state equipment has operational characteristics differing from those of
electromechanical equipment. Safety Guidelines for the Application, Installation and
Maintenance of Solid State Controls (Publication SGI-1.1 available from your local
Rockwell Automation sales office or online at http://www.ab.com/manuals/gi)
describes some important differences between solid state equipment and hard-wired
electromechanical devices. Because of this difference, and also because of the wide
variety of uses for solid state equipment, all persons responsible for applying this
equipment must satisfy themselves that each intended application of this equipment
is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or
consequential damages resulting from the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative
purposes. Because of the many variables and requirements associated with any
particular installation, Rockwell Automation, Inc. cannot assume responsibility or
liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of
information, circuits, equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written
permission of Rockwell Automation, Inc. is prohibited.
Throughout this manual we use notes to make you aware of safety considerations.

POINT I/O Input Module 3
Publication 1734-IN051D-EN-P - April 2004
WARNING Identifies information about practices or circumstances that
can cause an explosion in a hazardous environment, which
may lead to personal injury or death, property damage, or
economic loss.
ATTENTION Identifies information about practices or circumstances that
can lead to personal injury or death, property damage, or
economic loss. Attentions help you:
•identify a hazard
•avoid a hazard
•recognize the consequence
IMPORTANT Identifies information that is critical for successful
application and understanding of the product.
Important User Information
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4POINT I/O Input Module
Publication 1734-IN051D-EN-P - April 2004
ATTENTION Environment and Enclosure
This equipment is intended for use in a Pollution Degree 2
industrial environment, in overvoltage Category II applications
(as defined in IEC publication 60664-1), at altitudes up to 2000
meters without derating.
This equipment is considered Group 1, Class A industrial
equipment according to IEC/CISPR Publication 11. Without
appropriate precautions, there may be potential difficulties
ensuring electromagnetic compatibility in other environments
due to conducted as well as radiated disturbance.
This equipment is supplied as "open type" equipment. It must
be mounted within an enclosure that is suitably designed for
those specific environmental conditions that will be present and
appropriately designed to prevent personal injury resulting from
accessibility to live parts. The interior of the enclosure must be
accessible only by the use of a tool. Subsequent sections of this
publication may contain additional information regarding
specific enclosure type ratings that are required to comply with
certain product safety certifications.
See NEMA Standards publication 250 and IEC publication
60529, as applicable, for explanations of the degrees of
protection provided by different types of enclosure. Also, see the
appropriate sections in this publication, as well as the
Allen-Bradley publication 1770-4.1 ("Industrial Automation
Wiring and Grounding Guidelines"), for additional installation
requirements pertaining to this equipment.

POINT I/O Input Module 5
Publication 1734-IN051D-EN-P - April 2004
WARNING EXPLOSION HAZARD
•Do not disconnect equipment unless power has been
removed or the area is known to be nonhazardous.
•Do not disconnect connections to this equipment unless
power has been removed or the area is known to be
nonhazardous. Secure any external connections that mate
to this equipment by using screws, sliding latches, threaded
connectors, or other means provided with this product.
•Substitution of components may impair suitability for Class
I, Division 2.
•If this product contains batteries, they must only be
changed in an area known to be nonhazardous.
ATTENTION Preventing Electrostatic Discharge
This equipment is sensitive to electrostatic discharge,
which can cause internal damage and affect normal
operation. Follow these guidelines when you handle
this equipment:
•Touch a grounded object to discharge potential
static.
•Wear an approved grounding wriststrap.
•Do not touch connectors or pins on component
boards.
•Do not touch circuit components inside the
equipment.
•If available, use a static-safe workstation.
•When not in use, store the equipment in
appropriate static-safe packaging.
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6POINT I/O Input Module
Publication 1734-IN051D-EN-P - April 2004
Installing the Mounting Base
To install the mounting base on the DIN rail, proceed as follows.
1. Position the mounting base vertically above the installed units
(adapter, power supply or existing module.
2. Slide the mounting base down allowing the interlocking side pieces to
engage the adjacent module or adapter.
3. Press firmly to seat the mounting base on the DIN rail. The mounting
base will snap into place.
4. To remove the mounting base from the DIN rail, remove the module,
and use a small bladed screwdriver to rotate the base locking screw to
a vertical position. This releases the locking mechanism. Then lift
straight up to remove.
Installing the I/O Module
The module can be installed before, or after base installation. Make sure that
the mounting base is correctly keyed before installing the module into the
mounting base. In addition, make sure the mounting base locking screw is
positioned horizontal referenced to the base.
ATTENTION POINT I/O is grounded through the DIN rail to chassis
ground. Use zinc plated, yellow chromated steel DIN rail
to assure proper grounding. Using other DIN rail
materials (e.g. aluminum, plastic, etc.) which can corrode,
oxidize or are poor conductors can result in improper or
intermittent platform grounding.
WARNING When you insert or remove the module while
backplane power is on, an electrical arc can occur. This
could cause an explosion in hazardous location
installations. Be sure that power is removed or the area
is nonhazardous before proceeding.

POINT I/O Input Module 7
Publication 1734-IN051D-EN-P - April 2004
1. Using a bladed screwdriver, rotate the keyswitch (2) on the mounting
base clockwise until the number required for the type of module being
installed aligns with the notch in the base.
2. Make certain the DIN rail locking screw is in the horizontal position.
(You cannot insert the module if the locking mechanism is unlocked.)
3. Insert the module straight down into the mounting base and press to
secure. The module will lock into place.
Installing the Removable Terminal Block (RTB)
A removable terminal block is supplied with your wiring base assembly. To
remove, pull up on the RTB handle. This allows the mounting base to be
removed and replaced as necessary without removing any of the wiring. To
reinsert the removable terminal block, proceed as follows.
1. Insert the end opposite the handle into the base unit. This end has a
curved section that engages with the wiring base.
2. Rotate the terminal block into the wiring base until it locks itself in
place.
3. If an I/O module is installed, snap the RTB handle into place on the
module.
WARNING When you connect or disconnect the Removable
Terminal Block (RTB) with field side power applied, an
electrical arc can occur. This could cause an explosion
in hazardous location installations. Be sure that power
is removed or the area is nonhazardous before
proceeding.
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8POINT I/O Input Module
Publication 1734-IN051D-EN-P - April 2004
Removing a Mounting Base
To remove a mounting base, you must remove any installed module, and the
module installed in the base to the right. Remove the removable terminal
block (if wired).
1. Unlatch the RTB handle on the I/O module.
2. Pull on the RTB handle to remove the removable terminal block.
3. Press on the module lock on the top of the module.
4. Pull on the I/O module to remove from the base.
5. Repeat steps 1, 2, 3 and 4 for the module to the right.
6. Use a small bladed screwdriver to rotate the orange base locking
screw to a vertical position. This releases the locking mechanism.
7. Then lift straight up to remove.
WARNING When you connect or disconnect the Removable
Terminal Block (RTB) with field side power applied, an
electrical arc can occur. This could cause an explosion
in hazardous location installations.
Be sure that power is removed or the area is
nonhazardous before proceeding.
WARNING When you insert or remove the module while
backplane power is on, an electrical arc can occur. This
could cause an explosion in hazardous location
installations. Be sure that power is removed or the area
is nonhazardous before proceeding.

POINT I/O Input Module 9
Publication 1734-IN051D-EN-P - April 2004
Communicating with Your Module
I/O messages are sent to (consumed) and received from (produced) the
POINT I/O modules. These messages are mapped into the processor’s
memory. This POINT I/O input module produces 1 byte of input data
(scanner Rx). It does not consume I/O data (scanner Tx).
Default Data Map for the 1734-IB2 Input Module
Message size: 1 Byte
Default Data Map for the 1734-IB4 Input Module
Message size: 1 Byte
Default Data Map for the 1734-IB8 Input Module
Message size: 1 Byte
76543210
Produces (Rx) I1 I0
Consumes (Tx) No consumed data
Where: I0 = channel 0, I1 = channel 1; 0 = off, 1 = on
76543210
Produces (Rx) I3 I2 I1 I0
Consumes (Tx) No consumed data
Where: I0 = channel 0, I1 = channel 1, I2 = channel 2 and I3 = channel 3; 0 = off, 1 = on
7 6 5 4 3 2 1 0
Produces (Rx) I7 I6 I5 I4 I3 I2 I1 I0
Consumes (Tx) No consumed data
Where: I0 = channel 0, I1 = channel 1, I2 = channel 2 and I3 = channel 3; I4 = channel 4,
I5 = channel 5, I6 = channel 6, I7 equals channel 7; 0 = off, 1 = on
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10 POINT I/O Input Module
Publication 1734-IN051D-EN-P - April 2004
Wiring the Input Modules
24VDC
Sink
Input
Module
Status
Network
Status
1734
IB2
NODE:
0
1
24VDC
Sink
Input
Module
Status
Network
Status
1734
IB4
NODE:
0
1
2
3
24VDC
Sink
Input
Module
Status
Network
Status
1734
IB8
NODE:
0
1
2
3
4
5
6
7
41974
Module Status
Network Status
Status of Input 0
Status of Input 1
Input 0
NC
C
V
Input 1
NC
C
V
Input = 0 and 1
NC = No Connection (2 and 3)
C = Common (4 and 5)
V = Supply (6 and 7)
Input 0
C
V
Input 1
C
V
Input 2 Input 3
Status of Input 2
Status of Input 3
Input = 0, 1, 2 and 3
C = Common (4 and 5)
V = Supply (6 and 7)
1734-IB2 1734-IB4 1734-IB8
Input 0 Input 1
Input 2 Input 3
Input 4 Input 5
Input 6 Input 7
Status - Input 0 & 4
Status - Input 1 & 5
Status - Input 2 & 6
Status - Input 3 & 7
Input = 0, 1, 2, 3, 4, 5, 6 and 7
Note: V and C are
daisychained from either the
Adapter, 1734-FPD,
1734-EP24DC, or from a user
supplied auxiliary terminal

POINT I/O Input Module 11
Publication 1734-IN051D-EN-P - April 2004
Wiring for 1734-IB2
Channel Input Common Voltage
0 0 4 6
1 1 5 7
Connect common on 3-wire proximity switches.
12/24V dc is supplied through the internal power bus.
Prox
In 0 In 1
NC
C
VV
C
NC Prox
V = 12/24V dc
C = Common 41966
3-wire
Sink Input
2-wire
3
5
7
01
2
4
6
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12 POINT I/O Input Module
Publication 1734-IN051D-EN-P - April 2004
Wiring for 1734-IB4
Channel Input Common Voltage
0 0 4 6
1 1 5 7
2 2 4 6
3 3 5 7
Connect common on 3-wire proximity switches.
12/24V dc is supplied through the internal power bus.
Prox
In 0 In 1
In 2
C
VV
C
In 3
Prox ProxProx
41967
V = 12/24V dc
C = Common
Sink Input
3
5
7
01
2
4
6
3-wire2-wire

POINT I/O Input Module 13
Publication 1734-IN051D-EN-P - April 2004
Wiring for 1734-IB8
Note: When connecting more than 1 wire in a termination point, make sure
that both wires are the same gauge and type.
Channel Input Channel Input
0 0 4 4
1 1 5 5
2 2 6 6
3 3 7 7
Daisychain common and power connections from 1734 Adapter, 1734-FPD, 1734-EP24DC
or from user supplied external auxiliary terminal block.
Prox
In 0 In 1
In 2
In 4
In 6 In 7
In 5
In 3 Prox
Prox
Prox
41967
Sink Input
3
5
7
01
2
4
6
3-wire
2-wire
C
V
Prox
Prox
Prox
Prox
3-wire
2-wire
2-wire
2-wire
3-wire
3-wire
CV
V = 12/24V dc
C = Common
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14 POINT I/O Input Module
Publication 1734-IN051D-EN-P - April 2004
4V dc 2 Input Sink Module Cat. No. 1734-IB2
Troubleshooting with the Indicators
Indication Probable Cause
Module Status
Off No power applied to device
Green Device operating normally
Flashing Green Device needs commissioning due to configuration
missing, incomplete or incorrect.
Flashing Red Recoverable fault.
Red Unrecoverable fault may require device replacement
Flashing Red/Green Device is in self-test
Module Status
Network Status
Status of Input 0
Status of Input 1
24VDC
Sink
Input
Module
Status
Network
Status
1734
IB4
NODE:
0
1
2
3
24VDC
Sink
Input
Module
Status
Network
Status
1734
IB2
NODE:
0
1
1734-IB2 1734-IB4 1734-IB8
Status of Input 0 & 4
Status of Input 1 & 5
Status of Input 2 & 6
Status of Input 3 & 7
Module Status
Network Status
24VDC
Sink
Input
Module
Status
Network
Status
1734
IB8
NODE:
0
1
2
3
4
5
6
7
Status of Input 2
Status of Input 3

POINT I/O Input Module 15
Publication 1734-IN051D-EN-P - April 2004
Network Status
Off Device is not on-line
- Device has not completed dup_MAC_id test.
- Device not powered - check module status indicator
Flashing Green Device is on-line but has no connections in the
established state.
Green Device on-line and has connections in the established
state.
Flashing Red One or more I/O connections in timed-out state
Red Critical link failure - failed communication device.
Device detected error that prevents it communicating on
the network.
Flashing Red/Green Communication faulted device - the device has detected
a network access error and is in communication faulted
state. Device has received and accepted an Identify
Communication Faulted Request - long protocol
message.
Indication Probable Cause
I/O Status
Off Input is in the off-state
Yellow Input is in the on-state
Indication Probable Cause
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16 POINT I/O Input Module
Publication 1734-IN051D-EN-P - April 2004
Safety Approvals
North American Hazardous Location Approval
The following modules are North American Hazardous Location approved:
1734-IB2, 1734-IB4 and 1734-IB8.
The following information applies when
operating this equipment in hazardous
locations:
Informations sur l’utilisation de cet équipement
en environnements dangereux:
Products marked “CL I, DIV 2, GP A, B, C, D” are suitable
for use in Class I Division 2 Groups A, B, C, D, Hazardous
Locations and nonhazardous locations only. Each product
is supplied with markings on the rating nameplate
indicating the hazardous location temperature code. When
combining products within a system, the most adverse
temperature code (lowest “T” number) may be used to
help determine the overall temperature code of the
system. Combinations of equipment in your system are
subject to investigation by the local Authority Having
Jurisdiction at the time of installation.
Les produits marqués “CL I, DIV 2, GP A, B, C, D” ne
conviennent qu’à une utilisation en environnements de Classe I
Division 2 Groupes A, B, C, D dangereux et non dangereux.
Chaque produit est livré avec des marquages sur sa plaque
d’identification qui indiquent le code de température pour les
environnements dangereux. Lorsque plusieurs produits sont
combinés dans un système, le code de température le plus
défavorable (code de température le plus faible) peut être
utilisé pour déterminer le code de température global du
système. Les combinaisons d’équipements dans le système
sont sujettes à inspection par les autorités locales qualifiées
au moment de l’installation.
EXPLOSION HAZARD -
•Do not disconnect equipment unless
power has been removed or the area
is known to be nonhazardous.
•Do not disconnect connections to
this equipment unless power has
been removed or the area is known
to be nonhazardous. Secure any
external connections that mate to
this equipment by using screws,
sliding latches, threaded
connectors, or other means provided
with this product.
•Substitution of components may
impair suitability for Class I, Division
2.
•If this product contains batteries,
they must only be changed in an
area known to be nonhazardous.
RISQUE D’EXPLOSION –
•Couper le courant ou s’assurer que
l’environnement est classé non
dangereux avant de débrancher
l'équipement.
•Couper le courant ou s'assurer que
l’environnement est classé non
dangereux avant de débrancher les
connecteurs. Fixer tous les
connecteurs externes reliés à cet
équipement à l'aide de vis, loquets
coulissants, connecteurs filetés ou
autres moyens fournis avec ce
produit.
•La substitution de composants peut
rendre cet équipement inadapté à une
utilisation en environnement de
Classe 1, Division 2.
•S’assurer que l’environnement est
classé non dangereux avant de
changer les piles.
WARNING AVERTISSEMENT

POINT I/O Input Module 17
Publication 1734-IN051D-EN-P - April 2004
European Hazardous Location Approval
The following modules are European Zone 2 approved: 1734-IB2, 1734-IB4
and 1734-IB8.
European Zone 2 Certification (The following applies when the product
bears the EEx Marking)
This equipment is intended for use in potentially explosive atmospheres as defined
by European Union Directive 94/9/EC.
DEMKO certifies that this equipment has been found to comply with the Essential
Health and Safety Requirements relating to the design and construction of Category
3 equipment intended for use in potentially explosive atmospheres, given in Annex
II to this Directive. The examination and test results are recorded in
EC-type-examination certificate DEMKO 04 ATEX 0330347 X.
Compliance with the Essential Health and Safety Requirements has been assured by
compliance with EN 50021.
IMPORTANT Observe the following additional Zone 2 certification
requirements.
•This equipment is not resistant to sunlight or other sources
of UV radiation.
•The secondary of a current transformer shall not be
open-circuited when applied in Class I, Zone 2 environments.
•Equipment of lesser Enclosure Type Rating must be installed
in an enclosure providing at least IP54 protection when
applied in Class I, Zone 2 environments.
•This equipment shall be used within its specified ratings
defined by Allen-Bradley.
•Provision shall be made to prevent the rated voltage from
being exceeded by transient disturbances of more than 40%
when applied in Class I, Zone 2 environments
Specifications - 1734-IB2, -IB4 and -IB8 Input Modules
Input Specifications (IEC 3 24V dc Input Compliant)
Inputs per Module 1734-IB2 - 2 (1 group of 2), sinking
1734-IB4 - 4 (1 group of 4), sinking
1734-IB8 - 8 (1 group of 8), sinking
ON-State Voltage 10V dc minimum
24V dc nominal
28.8V dc maximum
ON-State Current 2mA minimum
4mA nominal @ 24V dc
5mA maximum
OFF-State Voltage 5V dc maximum
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18 POINT I/O Input Module
Publication 1734-IN051D-EN-P - April 2004
OFF-State Current 1.5mA minimum
Input Impedance 4.7KΩmaximum, 3.6KΩnominal
Input Filter Time1
OFF to ON
ON to OFF
0.5ms hardware plus 0-63ms (user selectable)
0.5ms hardware plus 0-63ms (user selectable)
Indicators 1 green/red network status indicator, logic side
1 green/red module status indicator, logic side
1734-IB2 - 2 yellow input status indicators, logic side
1734-IB4 - 4 yellow input status indicators, logic side
1734-IB8 - 8 yellow input status indicators, logic side
Keyswitch Position 1
General Specifications
Module Location 1734-TB or -TBS wiring base assembly
Pointbus Current 75mA maximum @ 5V dc
Power Dissipation 1734-IB2 - 0.7W maximum @ 28.8V dc
1734-IB4 - 1.0W maximum @ 28.8V dc
1734-IB8 - 1.6W maximum @ 28.8V dc
Thermal Dissipation 1734-IB2 - 2.4 BTU/hr maximum @ 28.8V dc
1734-IB4 - 3.4 BTU/hr maximum @ 28.8V dc
1734-IB8 - 5.5 BTU/hr maximum @ 28.8V dc
Isolation Voltage (Minimum) Tested to withstand 2500V dc for 60s
Field Power Bus
Supply Voltage
Voltage Range
24V dc nominal
10-28.8V dc
Dimensions Inches
(Millimeters)
2.2H x 0.47W x 2.97L
(56H x 12W x 75.5L)
Environmental Conditions
Operational Temperature IEC 60068-2-1 (Test Ad, Operating Cold),
IEC 60068-2-2 (Test Bd, Operating Dry Heat),
IEC 60068-2-14 (Test Nb, Operating Thermal Shock):
-20 to 55°C (-4 to 131°F)
Storage Temperature IEC 60068-2-1 (Test Ab, Unpackaged Nonoperating
Cold),
IEC 60068-2-2 (Test Bb, Unpackaged Nonoperating Dry
Heat),
IEC 60068-2-14 (Test Na, Unpackaged Nonoperating
Thermal Shock):
-40 to 85°C (-40 to 185°F)
Relative Humidity IEC 60068-2-30 (Test Db, Unpackaged Nonoperating
Damp Heat):
5 to 95% noncondensing

POINT I/O Input Module 19
Publication 1734-IN051D-EN-P - April 2004
Shock
Operating
Non-operating
IEC 60068-2-27 (Test Ea, Unpackaged Shock)
30g peak acceleration
50g peak acceleration
Vibration IEC 60068-2-6, (Test Fc, Operating)
Tested 5g @ 10-500Hz
ESD Immunity IEC 61000-4-2:
6kV contact discharges
8kV air discharges
Radiated RF Immunity IEC 61000-4-3:
10V/m with 200Hz 50% Pulse 100%AM at 1890Mhz
10V/m with 200Hz 50% Pulse 100%AM at 900Mhz
10V/m with 1kHz sine-wave 80%AM from 30MHz to
2000MHz
EFT/B Immunity IEC 61000-4-4:
±4kV at 2.5kHz on signal ports
±4kV at 2.5kHz on power ports
Surge Transient Immunity IEC 61000-4-5:
±1kV line-line(DM) and ±2kV line-earth(CM) on power
and signal ports
Conducted RF Immunity IEC 61000-4-6:
10Vrms with 1kHz sine-wave 80%AM from 150kHz to
80MHz
Emissions CISPR 11
Group 1, Class A
Enclosure Type Rating None (open-style)
Conductors Wire Size
Category
14 AWG (2.5mm2) - 22 AWG (0.25mm2) solid or stranded
copper wire rated at 75°C or greater
3/64 inch (1.2mm) insulation maximum
22
Terminal Base Screw Torque 7 pound-inches (0.8Nm)
Mass 1734-IB2 - 1.09 oz/30.9 grams
1734-IB4 - 1.12 oz/31.8 grams
1734-IB8 - 1.14 oz/32.3 grams
AB Parts

Publication 1734-IN051D-EN-P - April 2004 PN 957859-41
Supersedes publication 1734-IN051C-EN-P - April 2002 © (2004) Rockwell Automation, Inc. Printed in USA
Field Wiring Terminations 1734-IB2
0 - Input 0 1 - Input 1
2 - No Connection 3 - No Connection
4 - Common 5 - Common
6 - User Supply 7 - User Supply
1734-IB4
0 - Input 0 1 - Input 1
2 - Input 2 3 - Input 3
4 - Common 5 - Common
6 - User Supply 7 - User Supply
1734-IB8
0 - Input 0 1 - Input 1
2 - Input 2 3 - Input 3
4 - Input 4 5 - Input 5
6 - Input 6 7 - Input 7
Certifications (when product
is marked)
C-UL-US - UL Listed Industrial Control Equipment,
certified for US and Canada
C-UL-US - UL Listed for Class I, Division 2, Groups A,
B, C and D Hazardous locations, certified
for US and Canada
EEx3European Union 94/9/EEC ATEX Directive,
compliant with:
EN 50021; Potentially Explosive Atmospheres,
Protection “n” (Zone 2)
CE3- European Union 89/336/EEC EMC Directive,
compliant with:
EN 61000-6-4; Industrial Emissions
EN 50082-2; Industrial Immunity
EN 61326; Meas./Control/Lab., Industrial
Requirements
EN 61000-6-2; Industrial Immunity
C-Tick3- Australian Radiocommunications Act
compliant with AS/NZS CISPR 11, Industrial
Emissions
1 Input off-to-on filter time is the time from a valid input signal to recognition by the module. Input on-to-off
time is the time from a valid input signal to recognition by the module.
2 Use this conductor category information for planning conductor routing as described in publication
1770-4.1, “Industrial Automation Wiring and Grounding Guidelines.”
3 See the Product Certification link at www.ab.com for Declaration of Conformity, Certificates, and
other certification details.