Allen-Bradley FLEX I/O 1794-IC16 User manual

Installation Instructions
FLEX I/O 48V DC Digital Input and
Output Modules
Catalog numbers 1794-IC16, 1794-OC16
Table of Contents
Topic Page
Important User Information 2
Environment and Enclosure 3
Preventing Electrostatic Discharge 3
European Hazardous Location Approval 5
North American Hazardous Location Approval 7
Install Your 48V DC Digital Input or Output Module 8
Connect Wiring for the 1794-IC16 or 1794-OC16 9
Configure Your 48V DC Output Module, 1794-OC16 14
Specifications 14

2FLEX I/O 48V DC Digital Input and Output Modules
Publication 1794-IN105C-EN-P - July 2018
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.rockwellautomation.com/literature/) 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, when necessary, we use notes to make you aware of safety considerations.
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, or recognize the consequence.
IMPORTANT Identifies information that is critical for successful application and understanding of
the product.

FLEX I/O 48V DC Digital Input and Output Modules 3
Publication 1794-IN105C-EN-P - July 2018
Environment and Enclosure
Preventing Electrostatic Discharge
ATTENTION: This equipment is intended for use in a Pollution Degree 2
industrial environment, in overvoltage Category II applications (as defined in
EN/IEC 60664-1), at altitudes up to 2000 m (6562 ft) without derating.
This equipment is not intended for use in residential environments and may not
provide adequate protection to radio communication services in such
environments.
This equipment is supplied as open-type equipment for indoor use. 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 enclosure
must have suitable flame-retardant properties to prevent or minimize the spread
of flame, complying with a flame spread rating of 5VA or be approved for the
application if nonmetallic. The interior of the enclosure must be accessible only
by the use of a tool. Subsequent sections of this publication may contain more
information regarding specific enclosure type ratings that are required to
comply with certain product safety certifications.
In addition to this publication, see the following:
• Industrial Automation Wiring and Grounding Guidelines, Rockwell
Automation publication 1770-4.1, for more installation requirements.
• NEMA Standard 250 and EN/IEC 60529, as applicable, for explanations of
the degrees of protection provided by enclosures.
ATTENTION: 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.
• Use a static-safe workstation, if available.
• Store the equipment in appropriate static-safe packaging when not in use.

4FLEX I/O 48V DC Digital Input and Output Modules
Publication 1794-IN105C-EN-P - July 2018
ATTENTION: This product is grounded through the DIN rail to chassis ground.
Use zinc plated chromate-passivated steel DIN rail to assure proper grounding.
The use of other DIN rail materials (for example, aluminum or plastic) that can
corrode, oxidize, or are poor conductors, can result in improper or intermittent
grounding. Secure DIN rail to mounting surface approximately every 200 mm
(7.8 in.) and use end-anchors appropriately. Be sure to ground the DIN rail
properly.
ATTENTION: Refer to Industrial Automation Wiring and Grounding
Guidelines, Rockwell Automation publication 1770-4.1, for more information.
ATTENTION: If this equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be impaired.
ATTENTION: If this equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be impaired.
ATTENTION: Read this document and the documents listed in the Additional
Resources section about installation, configuration, and operation of this
equipment before you install, configure, operate, or maintain this product.
Users are required to familiarize themselves with installation and wiring
instructions in addition to requirements of all applicable codes, laws, and
standards.
ATTENTION: Installation, adjustments, putting into service, use, assembly,
disassembly, and maintenance are required to be carried out by suitably trained
personnel in accordance with applicable code of practice.
In case of malfunction or damage, no attempts at repair should be made. The
module should be returned to the manufacturer for repair. Do not dismantle the
module.
ATTENTION: Use only a soft dry anti-static cloth to wipe down equipment. Do
not use any cleaning agents.

FLEX I/O 48V DC Digital Input and Output Modules 5
Publication 1794-IN105C-EN-P - July 2018
European Hazardous Location Approval
The following modules are European Zone 2 approved: 1794-IC16, 1794-OC16.
WARNING: When you insert or remove the module while backplane power is
on, an electric 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.
Repeated electric arcing causes excessive wear to contacts on both the module
and its mating connector. Worn contacts may create electrical resistance that
can affect module operation.
The following applies to products marked II 3 G:
Are Equipment Group II, Equipment Category 3, and comply with the Essential Health and
Safety Requirements relating to the design and construction of such equipment given in
Annex II to EU Directive 2014/34/EU. See the EU Declaration of Conformity at
http://www.rockwellautomation.com/global/certification/overview.page for details.
The type of protection is II 3G Ex nA IIC T3 Gc according to EN 60079-15.
Comply to Standards EN 60079-0:2012, EN 60079-15:2010, reference certificate number
LCIE 01 ATEX 6020 X.
Are intended for use in areas in which explosive atmospheres caused by gases, vapors,
mists, or air are unlikely to occur, or are likely to occur only infrequently and for short
periods. Such locations correspond to Zone 2 classification according to ATEX directive
2014/34/EU.

6FLEX I/O 48V DC Digital Input and Output Modules
Publication 1794-IN105C-EN-P - July 2018
WARNING: Observe the following additional certification requirements:
• This equipment is not resistant to sunlight or other sources of
UV radiation.
• This equipment shall be mounted in an ATEX/IECEx Zone 2 certified
enclosure with a minimum ingress protection rating of at least IP54 (in
accordance with EN/IEC 60079-15) and used in an environment of not
more than Pollution Degree 2 (as defined in EN/IEC 60664-1) when
applied in Zone 2 environments. The enclosure must be accessible only by
the use of a tool.
• This equipment shall be used within its specified ratings defined by
Rockwell Automation.
• The instructions in the user manual shall be observed.
• This equipment must be used only with ATEX certified Rockwell
Automation backplanes.
• Earthing is accomplished through mounting of modules on rail.
• Devices shall be used in an environment of not more than Pollution
Degree 2.
• Enclosure must be marked with the following: "Warning - Do not open
when energized." After installation of equipment into the enclosure,
access to termination compartments shall be dimensioned so that
conductors can be readily connected.

FLEX I/O 48V DC Digital Input and Output Modules 7
Publication 1794-IN105C-EN-P - July 2018
North American Hazardous Location Approval
The 1794-IC16, 1794-OC16 module is Hazardous Location approved:
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.
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.
WARNING:
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.
• LLa substitution de composants peut rendre
cet équipement inadapté à une utilisation en
environnement de Classe I, Division 2.

8FLEX I/O 48V DC Digital Input and Output Modules
Publication 1794-IN105C-EN-P - July 2018
Install Your 48V DC Digital Input or Output Module
The module mounts on a 1794 terminal base.
1. Rotate the keyswitch (3) on the terminal base (4) clockwise to position 4 as
required for this type of module.
2. Make sure the FlexBus connector (1) is pushed all the way to the left to connect
with the neighboring terminal base/adapter.
You cannot install the module unless the connector is fully extended.
3. Make sure the pins on the bottom of the module are straight so they will align
properly with the connector in the terminal base.
4. Position the module (7) with its alignment bar (6) aligned with the groove (5) on
the terminal base.
5. Press firmly and evenly to seat the module in the terminal base unit. The module
is seated when the latching mechanism (2) is locked into the module.
Description Description
1 FlexBus connectors 5 Groove
2 Latching mechanism 6 Alignment bar
3 Keyswitch 7 Module
4 Terminal base
6
1
7
5
4
3
2
45284

FLEX I/O 48V DC Digital Input and Output Modules 9
Publication 1794-IN105C-EN-P - July 2018
Connect Wiring for the 1794-IC16 or 1794-OC16
1. Connect individual input (1794-IC16) or output (1794-OC16) wiring to
numbered terminals on the 0…15 row (A) as indicated in the Wiring
Connections for 1794-IC16 and 1794-OC16 table.
2. 1794-IC16 – Connect the associated +V DC power lead of the input device to
the corresponding terminal on the 34…51 row (C) for each input as indicated in
the Wiring Connections for 1794-IC16 and 1794-OC16 table. The +V DC
power terminals of row (C) are internally connected together.
3. 1794-OC16 – Connect the associated V DC common lead of the output device
to the corresponding terminal on the 16…33 row (B) for each output as indicated
in the Wiring Connections for 1794-IC16 and 1794-OC16 table. The V DC
common terminals of row (B) are internally connected together.
4. 1794-IC16 only – Connect the associated input common (3-wire devices only)
to the corresponding terminal on the 16…33 row (B) for each input as indicated
in the Wiring Connections for 1794-IC16 and 1794-OC16 table. Commons are
internally connected together.
5. Connect +V DC power to terminal 34 on the 34…51 row (C).
6. Connect V DC common to terminal 16 on the 16…33 row (B).
7. If daisychaining power to the next terminal base, connect a jumper from terminal
51 (+V DC) on this base unit to terminal 34 on the next base unit.
8. If continuing V DC common to the next base unit, connect a jumper from
terminal 33 (common) on this base unit to terminal 16 on the next base unit.
Wiring Connections for 1794-IC16 and 1794-OC16
1794-IC16 1794-OC16
1794-TB3, 1794-TB3S 1794-TB2, 1794-TB3,
1794-TB3S
Input Input
Terminal
48V DC
Supply
Common(1) Output Output
Terminal
Common
Input 0 A-0 C-35 B-17 Output 0 A-0 B-17
Input 1 A-1 C-36 B-18 Output 1 A-1 B-18
Input 2 A-2 C-37 B-19 Output 2 A-2 B-19
Input 3 A-3 C-38 B-20 Output 3 A-3 B-20

10 FLEX I/O 48V DC Digital Input and Output Modules
Publication 1794-IN105C-EN-P - July 2018
Input 4 A-4 C-39 B-21 Output 4 A-4 B-21
Input 5 A-5 C-40 B-22 Output 5 A-5 B-22
Input 6 A-6 C-41 B-23 Output 6 A-6 B-23
Input 7 A-7 C-42 B-24 Output 7 A-7 B-24
Input 8 A-8 C-43 B-25 Output 8 A-8 B-25
Input 9 A-9 C-44 B-26 Output 9 A-9 B-26
Input 10 A-10 C-45 B-27 Output 10 A-10 B-27
Input 11 A-11 C-46 B-28 Output 11 A-11 B-28
Input 12 A-12 C-47 B-29 Output 12 A-12 B-29
Input 13 A-13 C-48 B-30 Output 13 A-13 B-30
Input 14 A-14 C-49 B-31 Output 14 A-14 B-31
Input 15 A-15 C-50 B-32 Output 15 A-15 B-32
A = Input/Output terminals
B = Common terminals
C = Power terminals (C-34 to C-51 on 1794-TB3 and 1794-TB3S; C-34 and C-51 on 1794-TB2)
(1) 3-wire devices use input, supply and common. 2-wire devices use input and supply.
Wiring Connections for 1794-IC16 and 1794-OC16
1794-IC16 1794-OC16
1794-TB3, 1794-TB3S 1794-TB2, 1794-TB3,
1794-TB3S
Input Input
Terminal
48V DC
Supply
Common(1) Output Output
Terminal
Common

FLEX I/O 48V DC Digital Input and Output Modules 11
Publication 1794-IN105C-EN-P - July 2018
1794-TB2, 1794-TB3, and 1794-TB3S Terminal Base Wiring for
1794-IC16 and 1794-OC16
2 and 3-Wire Input Wiring for 1794-IC16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
34
Inputs/Outputs
Commons
1794-TB3 shown
V COM
+V
Voltage
A
B
C
V COM
Connect +V DC power to terminal C-34
Connect V DC common to terminal B-16
Use B-33 and C-51 for daisychaining to the next terminal base unit
+V
Note: Terminals C-35…C-50 are not present on the 1794-TB2
A
B
C
0-15
16-33
34-51
= Sink Input
= Common
= +V DC
2-Wire Device
(Sourcing Output) 3-Wire Device
(Sourcing Output)
A
B
C

12 FLEX I/O 48V DC Digital Input and Output Modules
Publication 1794-IN105C-EN-P - July 2018
Configuring Your 48V DC Input Module, 1794-IC16
Set the Input Filter Time for the 1794-IC16 Module
The 1794-IC16 has a built-in 1 ms filter.You can increase the input filter time (FT) for
channels 0...15. To increase the filter time, set the corresponding bits in the output image
table (complementary word) for the module. See the Input Filter Time for 1794-IC16
table.
Image Table Memory Map for the 1794-IC16 Module
Dec 1514131211109876543210
Oct 17161514131211107 6 5 4 3 2 1 0
Read I15 I14 I13 I12 I11 I10 I9 I8 I7 I6 I5 I4 I3 I2 I1 I0
Write Not used – set to 0 Input Filter FT1
12...15
Input Filter FT0
0...11
Where I = Input status
FT0 = Input filter time for inputs 0...11
FT1 = Input filter time for inputs 12...15
ATTENTION: This equipment is certified for use only within the surrounding
air temperature range of 0…55 °C (32…131 °F). The equipment must not be
used outside of this range.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
FT = 12-15 FT = 0-11
1794-IC16
O:010
Dec.

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For example, to set an additional filter time of 4 ms for all 16 inputs of a 1794-IC16
module at address rack 1, module group 0, set bits 00...05 as shown below. The result will
be a total filter time of 5 ms.
Input Filter Time for 1794-IC16
Actual filter time represents selected filter time plus 1 ms
Bits Description
02 01 00 Filter Time for inputs 00...11 Selected
Filter Time
Actual
Filter Time05 04 03 Filter Time for inputs 12...15
0 0 0 Filter Time 0 (Default) 256 μs 1256 μs
0 0 1 Filter Time 1 512 μs 1512 μs
0 1 0 Filter Time 2 1 ms 2 ms
0 1 1 Filter Time 3 2 ms 3 ms
1 0 1 Filter Time 4 4 ms 5 ms
1 0 1 Filter Time 5 8 ms 9 ms
1 1 0 Filter Time 6 16 ms 17 ms
1 1 1 Filter Time 7 32 ms 33 ms
100
76543
FLL
I:000
00
Fill File
Source
Destination
Length
#O:010
1
Write FT to complement
of input module.
Write filter time on system startup.
21 0 = 44 Octal or 36 Decimal
010100
1794-IC16

14 FLEX I/O 48V DC Digital Input and Output Modules
Publication 1794-IN105C-EN-P - July 2018
Configure Your 48V DC Output Module, 1794-OC16
Specifications
Image Table Memory Map for the 1794-OC16 Module
Dec 1514131211109876543210
Oct 17161514131211107 6 5 4 3 2 1 0
Read Not used – set to 0
Write O15O14O13O12O11O10O9O8O7O6O5O4O3O2O1O0
Where O = Output
At the end of its life, this equipment should be collected separately from any
unsorted municipal waste.
Specifications – 48V DC Input Module 1794-IC16
Attribute Value
Number of inputs 16, nonisolated, sinking
Recommended terminal base unit 1794-TB3, 1794-TB3S, 1794-TB3K, 1794-TB3SK
On-state voltage, min 30V DC
On-state voltage, nom 48V DC
On-state voltage, max 60V DC
On-state current, min 2.0 mA @ 30V DC
On-state current, nom 5.0 mA @ 48V DC
On-state current, max 7.0 mA @ 60V DC
Off-state voltage, max 10V DC
Off-state current, min 1.5 mA
Nominal input impedance 11 kΩ
Nominal input current 5.0 mA @ 48V DC

FLEX I/O 48V DC Digital Input and Output Modules 15
Publication 1794-IN105C-EN-P - July 2018
Isolation voltage 50V (continuous), Basic Insulation Type
Tested at 1900V DC for 1 s, between user and system
No isolation between individual channels
Input filter time(1)
Off to On
On to Off Refer to Input Filter Time for 1794-IC16
FlexBus current 25 mA @ 5V DC
Power dissipation, max 6.4 W @ 60V DC
Thermal dissipation, max 21.9 BTU/hr @ 60V DC
(1) Input off-to-on filter time is the time from a valid input signal to recognition by the module. Input on-to-off filter time is
time from the input signal dropping below the valid level to recognition by the module.
Specifications – 48V DC Output Module 1794-OC16
Attribute Value
Number of outputs 16, nonisolated, sourcing
Recommended terminal base unit 1794-TB3, 1794-TB3S, 1794-TB3K, 1794-TB3SK
Output voltage, min 30V DC
Output voltage, nom 48V DC
Output voltage, max 60V DC @ 45 °C
55V DC @ 55 °C
Output current rating 8.0 A (16 outputs @ 0.5 A)
On-state current, min 2.0 mA per channel
On-state current, max 500 mA per channel
Surge current 4 A for 10 ms each, repeatable every 2 s
Off-state voltage, max 60V DC
Off-state leakage, max 1.0 mA
On-state voltage drop, max 1.0V DC @ 0.5 A
Isolation voltage Type tested at 1900V DC for 1 s, between user and system
No isolation between individual channels
Output signal delay, max(1)
Off to On
On to Off
0.5 ms
1.0 ms @ 25 °C
2.0 ms @ 55 °C
Specifications – 48V DC Input Module 1794-IC16
Attribute Value

16 FLEX I/O 48V DC Digital Input and Output Modules
Publication 1794-IN105C-EN-P - July 2018
FlexBus current 80 mA @ 5V DC
Power dissipation, max 3.7 W @ 60V DC
Thermal dissipation, max 12.6 BTU/hr @ 60V DC
Fusing(2) SANO MQ2 – 2A, 150V AC normal blow
(1) Delay time is the time from the receipt of an output on or off command to the output actually turning on or off.
(2) Module outputs are not fused. Fusing is recommended. If fusing is desired, you must supply external fusing.
General Specifications
Attribute 1794-IC16 1794-OC16
Terminal base screw torque Determined by installed terminal base
Dimensions, approx. (H x W x D) 94 x 94 x 69 mm (3.7 x 3.7 x 2.7 in.)
Weight, approx. 82 g (2.89 oz.) 110 g (3.88 oz.)
Indicators (field side indication) 16 yellow status indicators
(customer device driven)
16 yellow status indicators
(logic driven)
External DC power supply voltage, nom 48V DC
External DC power voltage range 30...60V DC (includes 5% AC ripple)
External DC power supply current
range
51 mA @ 30V DC
82 mA @ 48V DC
107 mA @ 60V DC
13...27 mA
North American temperature code T3C T4A
IEC temperature code T3 T4
Keyswitch position 2
Enclosure type rating None (open-style)
Wire size Determined by installed terminal base
Wiring category(1) 2 – on signal ports
(1) Use this conductor category information for planning conductor routing as described in Industrial Automation Wiring
and Grounding Guidelines, publication 1770-4.1.
Specifications – 48V DC Output Module 1794-OC16
Attribute Value

FLEX I/O 48V DC Digital Input and Output Modules 17
Publication 1794-IN105C-EN-P - July 2018
Environmental Specifications
Attribute Value
Operating 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):
0 °C < Ta < +55 °C (+32 °F < Ta < +131 °F)
Temperature, surrounding air,
max.
55 °C (131 °F)
Storage temperature IEC 60068-2-1 (Test Ab, Unpackaged Non-operating Cold),
IEC 60068-2-2 (Test Bb, Unpackaged Non-operating Dry Heat),
IEC 60068-2-14 (Test Na, Unpackaged Non-operating Thermal Shock):
-40…85 °C (-40…185 °F)
Relative humidity IEC 60068-2-30 (Test Db, Unpackaged Damp Heat):
5…95% non-condensing
Vibration IEC60068-2-6 (Test Fc, Operating):
5 g @ 10...500 Hz
Shock, operating IEC60068-2-27 (Test Ea, Unpackaged shock):
30 g
Shock, nonoperating IEC60068-2-27 (Test Ea, Unpackaged shock):
50 g
Emissions CISPR 11:
Group 1, Class A (with appropriate enclosure)
ESD immunity IEC 61000-4-2:
6 kV contact discharges
8 kV air discharges
Radiated RF immunity IEC 61000-4-3:
10V/m with 1 kHz sine-wave 80% AM from 80...2000 MHz
10V/m with 200 Hz 50% Pulse 100% AM @ 900 MHz
10V/m with 200 Hz 50% Pulse 100% AM @ 1890 MHz
1V/m with 1 kHz sine-wave 80% AM from 2000...2700 MHz
EFT/B immunity IEC 61000-4-4:
±2 kV @ 5 kHz on power ports
±2 kV @ 5 kHz on signal ports
Surge transient immunity IEC 61000-4-5:
±1 kV line-line(DM) and ±2 kV line-earth(CM) on signal ports
Conducted RF immunity IEC 61000-4-6:
10V rms with 1 kHz sine-wave 80% AM from 150 kHz…80 MHz

18 FLEX I/O 48V DC Digital Input and Output Modules
Publication 1794-IN105C-EN-P - July 2018
Certifications
Certifications (when
product is marked)(1)
(1) See the Product Certification link at http://www.rockwellautomation.com/global/certification/overview.page for
Declarations of Conformity, Certificates, and other certification details.
Value
c-UL-us UL Listed Industrial Control Equipment, certified for US and Canada.
See UL File E322657.
UL Listed for Class I, Division 2 Group A,B,C,D Hazardous Locations,
certified for U.S. and Canada. See UL File E334470.
CSA CSA Certified Process Control Equipment. See CSA File LR93701.
CSA Certified Process Control Equipment for Class I, Division 2 Group
A,B,C,D Hazardous Locations. See CSA File LR93701.
CE European Union 2014/30/EU EMC Directive, compliant with:
EN 61131-2; Programmable Controllers (Clause 11)
EN 61000-6-2; Industrial Immunity
EN 61000-6-4; Industrial Emissions
EN 61131-2; Programmable Controllers (Clause 8, Zone A & B)
European Union 2011/65/EU RoHS, compliant with:
EN 50581; Technical documentation
Ex European Union 2014/34/EU ATEX Directive, compliant with:
EN 60079-0; General Requirements
EN 60079-15; Potentially Explosive Atmospheres, Protection "n"
II 3G Ex nA IIC T3 Gc
LCIE 01 ATEX 6020 X
KC Korean Registration of Broadcasting and Communications Equipment,
compliant with: Article 58-2 of Radio Waves Act, Clause 3
EAC Russian Customs Union TR CU 020/2011 EMC Technical Regulation
RCM Australian Radiocommunications Act, compliant with:
EN 61000-6-4; Industrial Emissions
WARNING: When used in a Class I, Division 2, hazardous location, this
equipment must be mounted in a suitable enclosure with proper wiring
method that complies with the governing electrical codes.

FLEX I/O 48V DC Digital Input and Output Modules 19
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Derating Curve for 1794-IC16
0
35
30
45
40
10 20 30 40 50 55 60
Vin
On-state
Voltage
(V DC)
Ambient TemperatureoC
The area within the curve represents the safe operating range forthe module under
various conditions of usersupplied 48V DCsupply voltages and ambient temperatures.
= Normal mounting safe operating range, (includes ).
= Othermounting positions (including inverted horizontal) safe operating range
4129
50
55
60
Normal Mounting - Horizontal
OtherMounting (including Vertical, and Inverted Horizontal Mounting)
Voltage (max.) Temperature(max.)
Normal Other
60
55
50
41
55
55
29
42
55

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