Rockwell Automation 1794-IF8IH User Manual

Installation Instructions

FLEX I/O Isolated Input HART Analog Module

Catalog Number 1794-IF8IH

Topic Page

Important User Information 2 Environment and Enclosure 3 Preventing Electrostatic Discharge 4 North American Hazardous Location Approval 5 Install the Module 7 Wire the Module 8 Ground the Module 10 Module Wiring 11 Cyclic HART Input Data 19 Status Indicator 23 Specifications 23

IMPORTANT

This module can only be used with 1794-ACN(R)15 with version 5.1 (or greater) firmware, or 1794-AENT with version 4.2 (or greater) firmware. The 1794-AENT currently ships with version 4.1 firmware. For more information about using this module with 1794-ACN(R)15 with version 5.1 (or greater) firmware, see 1794-RN071

2 FLEX I/O Isolated Input HART Analog Module

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

http://literature.rockwellautomation.com

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

available from your local Rockwell Automation sales office or online at

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.

) describes some important differences between solid state

IMPORTANT

ATTENTION

SHOCK HAZARD

BURN HAZARD

Publication

Identifies information that is critical for successful application and understanding of the product.

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 and recognize the consequences.

Labels may be on or inside the equipment (for example, drive or motor) to alert people that dangerous voltage may be present.

Labels may be on or inside the equipment (for example, drive or motor) to alert people that surfaces may reach dangerous temperatures.

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FLEX I/O Isolated Input HART Analog Module 3

Environment and Enclosure

ATTENTION

WARNING

This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC 60664-1), at altitudes up to 2000 m (6562 ft) without derating.

This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR 11. Without appropriate precautions, there may be difficulties with electromagnetic compatibility in residential and other environments due to conducted and radiated disturbances.

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 enclosure must have suitable flame-retardant properties to prevent or minimize the spread of flame, complying with a flame spread rating of 5VA, V2, V1, V0 (or equivalent) if non-metallic. 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.

In addition to this publication, see:

• Industrial Automation Wiring and Grounding Guidelines, for additional

installation requirements, Allen-Bradley publication 1770-4.1

• NEMA Standards 250 and IEC 60529, as applicable, for explanations of

the degrees of protection provided by different types of enclosure.

If 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

WARNING

If you connect or disconnect wiring while the field-side 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.

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ATTENTION

This product is grounded through the DIN rail to chassis ground. Use zinc plated yellow-chromate steel DIN rail to assure proper grounding. The use of other DIN rail materials (for example, aluminum and 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.

Preventing Electrostatic Discharge

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.

To reduce susceptibility to noise, power analog modules and digital modules from separate power supplies.

Do not exceed a length of 3 m (9.8 ft) for DC power cabling

ATTENTION

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To comply with the CE Low Voltage Directive (LVD), all connected I/O must be powered from a source compliant with the following: Safety Extra Low Voltage (SELV) or Protected Extra Low Voltage (PELV).

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FLEX I/O Isolated Input HART Analog Module 5

North American Hazardous Location Approval

The following information applies when operating this equipment in hazardous locations:

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 hazardou s 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. Combinat ions of equipment in your system are subject to investigation by the local Authority Having Jurisdiction at the time of 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.

• If this product contains batteries, they must only be changed in an area known to be nonhazardous.

Informations sur l’utilisation de cet équipement en environnements dangereux:

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 dan gereux. 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 détermin er 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.

AVERTISSEMENT

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.

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6 FLEX I/O Isolated Input HART Analog Module

European Hazardous Location Approval

European Zone 2 Certification (The following applies when the product bears the Ex or EEx Marking.)

This equipment is intended for use in potentially explosive atmospheres as defined by European Union Directive 94/9/EC and 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.

Compliance with the Essential Health and Safety Requirements has been assured by compliance with EN 60079-15 and EN 60079-0.

ATTENTION

WARNING

This equipment is not resistant to sunlight or other sources of UV radiation.

• This equipment must be installed in an enclosure providing at least IP54

protection when applied in 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 Zone 2 environments.

• This equipment must be used only with ATEX certified backplanes.

• Secure any external connections that mate to this equipment by using

screws, sliding latches, threaded connectors, or other means provided with this product.

• Do not disconnect equipment unless power has been removed or the

area is known to be nonhazardous.

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FLEX I/O Isolated Input HART Analog Module 7

Install the Module

Read this for information about how to install the module, which mounts on a 1794-TB3 or 1794-TB3S terminal base.

ATTENTION

During mounting of all devices, be sure that all debris (such as metal chips or wire strands) is kept from falling into the module. Debris that falls into the module could cause damage on power up.

2 6

44341

To install the module on a 1794 terminal base, refer to the figure and complete the following.

1. Rotate the keyswitch (1) on the terminal base (2) clockwise to

position 3 as required for this type of module.

2. Make sure the flexbus connector (3) is pushed all the way to

the left to connect with the neighboring terminal base or adapter.

IMPORTANT

You cannot install the module unless the connector is fully extended.

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8 FLEX I/O Isolated Input HART Analog Module

3. Make sure the pins on the bottom of the module are straight

so they align properly with the connector in the terminal base.

WARNING

If you remove or insert the module while the 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.

4. Position the module (4) with its alignment bar (5) aligned with

the groove (6) on the terminal base.

5. Press firmly and evenly to seat the module in the terminal base

unit, noting that the module is seated when the latching mechanism (7) is locked into the module.

Wire the Module

WARNING

To connect wiring for 1794-TB3 and 1794-TB3S bases, refer to the tables and figure and complete the following.

1. Connect individual input wiring to numbered terminals on the

0…15 row A, as indicated in the table, using Belden 8761 cable for signal wiring.

ATTENTION

Connect only one current signal per channel.

2. Connect each channel signal return to the associated terminal

on row A.

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FLEX I/O Isolated Input HART Analog Module 9

3. Connect the +V DC power lead to terminal 34 on the 34…51

row C, and the -V common/return to terminal 16 on the 16…33 row B.

ATTENTION

To reduce susceptibility to noise, power analog modules and digital modules from separate power supplies. Do not exceed a length of 3 m (9.8 ft) for DC power cabling.

4. If daisy-chaining 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.

5. If continuing 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,

6. For both 1794-TB3 and 1794-TB3S bases, connect wiring

shields to functional earth ground as near as possible to the module.

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10 FLEX I/O Isolated Input HART Analog Module

Ground the Module

All I/O wiring must use shielded wire. Shields must be terminated external to the module, such as bus bars and shield-terminating feed-throughs.

8 CH HART ISOLATED ANALOG INPUT

IN0 IN1 IN2 IN3

1794-xx8iH

IN4 IN5 IN6 IN7

I/O

PWR

44398

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FLEX I/O Isolated Input HART Analog Module 11

Module Wiring

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

18 19 20 21 22 23 3324 25 26 27 28 29 30 31 3217

35 36 37 38 47 48 49 5034

39 40 41 42 43 44 45 46

Label placed at top of wiring area

Current Input

AC or DC Four-wire Current Transmitter

Current Input

DC only Three-wire Current Transmitter

Current Input

DC only Two -w i re Current Transmitter

Row A Row B

Row C

Row A

Row B

Row C

1794-TB3S shown

44319

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Wire Connections

Channel Signal

Ty pe

0 Current I0 A-0

Current I0 Ret A-1

1 Current I1 A-2

Current I1 Ret A-3

2 Current I2 A-4

Current I2 Ret A-5

3 Current I3 A-6

Current I3 Ret A-7

4 Current I4 A-8

Current I4 Ret A-9

5 Current I5 A-10

Current I5 Ret A-11

6 Current I6 A-12

Current I6 Ret A-13

7 Current I7 A-14

Current I7 Ret A-15

-V DC common

+V DC power

For catalog numbers 1794-TB3 and 1794-TB3S, terminals B-16…33 are internally connected in the terminal base unit.

For catalog numbers 1794-TB3 and 1794-TB3S, terminals C-34…51 are internally connected in the terminal base unit.

Label Markings

Catalog Numbers 1794-TB3 or 1794-TB3S Terminal

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FLEX I/O Isolated Input HART Analog Module 13

Input Map

Word Bit

1514131211109876543210

0 Channel 0 Input Data 1 Channel 1 Input Data 2 Channel 2 Input Data 3 Channel 3 Input Data 4 Channel 4 Input Data 5 Channel 5 Input Data 6 Channel 6 Input Data 7 Channel 7 Input Data 8H7H6H5H4H3H2H1H0L 7L 6L 5L 4L 3L 2L 1L

9R7R6R5R4R3R2R1R0P 7P 6P 5P 4P 3P 2P 1P

10 Reserved Diagnostic Status 11 C7C6C5C4C3C2C1C0F

12 X7X6X5X4X3X2X1X0Reserved

7F 6F 5F 4F 3F 2F 1F

Channel n High Alarm

Hn:

Channel n Low Alarm

Ln:

Channel n Out Of Range Alarm

Pn:

Channel n Second (Remote) Alarm

Rn:

Channel n HART Failure

Fn:

Channel n HART Current Fault

Cn:

Channel n HART Transmitter Present

Xn: Note: Reserved data may not be shown in certain controller software

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0: False 1: True 0: False 1: True 0: False 1: True 0: False 1: True 0: False 1: True 0: False 1: True 0: False 1: True

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Configuration Map

Word Bit

1514131211109876543210

(1)

0RRF7F6F5F4

BOB D

2 2 CH 3 Format CH 2 Format CH 1 Format CH 0 Format 3 CH 7 Format CH 6 Format CH 5 Format CH 4 Format 4 CH1 HART Current

FLTR1 CH0 HART Current

Ratio

5 CH3 HART Current

FLTR3 CH2 HART Current

Ratio

6 CH5 HART Current

FLTR5 CH4 HART Current

Ratio

7 CH7 HART Current

FLTR7 CH6 HART Current

Ratio 8 Reserved 9 CH0 High Alarm threshold 10 CH0 Low Alarm threshold 11 CH0 Remote High High Alarm Limit 12 CH0 Remote Low Low Alarm Limit 13…16Words 9…12 for channel 1

R R F3F2F1F0

Reserved

D H 0

Ratio

FLTR0

FLTR2

FLTR4

FLTR6

BOA

(1)

17…20Words 9…12 for channel 2

21…24Words 9…12 for channel 3

25…28Words 9…12 for channel 4

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FLEX I/O Isolated Input HART Analog Module 15

Configuration Map

Word Bit

1514131211109876543210

29…32Words 9…12 for channel 5

33…36Words 9…12 for channel 6

37…40Words 9…12 for channel 7

41 Reserved C7C6C5C4C3C2C1C

Note: Reserved data may not be shown in certain controller software

(1)

not shown or used in RSLogix 5000.

Configuration Map descriptions

BOA BOB

FLTRn Channel n Digital Filter Refer to Channel Digital Filter table Fn Fault mode channel n 0: Local/Remote

CHn HART Current Ratio

DHn Disable HART

Byte order group A Byte order group B

HART current fault ratio limit on channel n

communications on channel n

Byte order group A and B values must match each other. Refer to the Byte Order table

faults disabled Valid values are 0, or 5…31 percent of

full scale. A value of 0 disables this feature. Refer to the HART Current Ratio table for more information.

0: HART communications enabled

1: Enabled

1: HART communications disabled

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Configuration Map descriptions

Cn HART CMD 3 Disable 0: HART CMD 3

communications

enabled R Reserved CH N Format Refer to the Channel Data Formats table

1: HART CMD 3 communications disabled

Byte Order

Byte Order Group B

Bit 9 Bit 8 Bit 1 Bit 0 Description

0 0 0 0 Little Endian Format (default) — all data entries in true

1 0 1 0 Word Swap — word swap only values requiring more

0 1 0 1 Byte Swap — byte swap all words in data table. 1 1 1 1 Big Endian Format — all data entries in true Big Endian

Byte Order Group A

Little Endian format

than one word, for example, 32 bit float values.

format.

Channel Digital Filter

Digital Filter frequency

470 Hz 0 0 0 0 62 Hz 1 001

19.6 Hz 2 0 1 0

16.7 Hz 3 0 1 1 10 Hz 4 100

Decimal Value Bits

10 9 8 210

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Channel Digital Filter

FLEX I/O Isolated Input HART Analog Module 17

Digital Filter frequency

4.17 Hz 5 101 Not applicable 6 1 1 0 Not applicable 7 1 1 1

Decimal Value Bits

10 9 8 210

HART Current Ratio

HART Current Ratio Limit

Disabled 0 0 0 0 0 0 Not applicable 1 0 0 0 0 1 Not applicable 2 0 0 0 1 0 Not applicable 3 0 0 0 1 1 Not applicable 4 0 0 1 0 0 5% 5 00101 6% 6 00110 7% 7 00111 8% 8 01000 9% 9 01001 10% 10 01010 … … …………… 30% 30 11110 31% 31 11111

Decimal Value Bits

15 14 13 12 11 76543

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Channel Data Formats

Format

(1)

0 00000…20 mA in

Bits Format

15 14 13 12 11 10 9 8 7654 3210

Name

Signal Range User Range Resolution

LO HI LO HI

0.00 22.00 0

Milliamps

1 00010…20 mA in

0.00 22.00 0

% Full Scale

3 00110…20 mA in

0.00 20.00 0 65535 0.3052 µA

UINT

(2)

(1)

(2)

01004…20 mA in

Milliamps

(2)

01014…20 mA in

% Full Scale

(2)

01114…20 mA in

UINT

All other formats are invalid.

HART Communications supported with these data formats only.

2.00 22.00 2000

2.00 22.00 -1250

4.00 20.00 0 65535 0.2441 µA

(0.000 mA)

(0%)

(2.000 mA)

(-12.50%)

22000 (22.000 mA)

11000 (110.00%)

22000 (22.000 mA)

11250 (112.50%)

1.0 µA

2.0 µA

1.0 µA

1.6 µA

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FLEX I/O Isolated Input HART Analog Module 19

Format Values

Format Format name 0.0 mA 2.0 mA 4.0 mA 20.0 mA 22.0 mA

0 0…20 mA in

0 2000 4000 20000 22000

Milliamps

1 0…20 mA in % Full

0 1000 2000 10000 11000

Scale

3 0…20 mA in UINT 0 6554 13107 65535

4 4…20 mA in

Milliamps

5 4…20 mA in % Full

Scale

7 4…20 mA in UINT

(1)

These values are under, or over the supported user range, and are clamped at the lowest/highest supported values.

2000

1000

(1)

2000 4000 20000 22000

(1)

1000 2000 10000 11000

(1)

0 65535

65535

(1)

Cyclic HART Input Data

The HART input data holds the primary variables for the "live" HART device, and other information gathered during the normal HART scan. Additional "documentary" data is available through the pass through message interface in the device information tables. Pass through messages are defined in detail in the User Manual.

IMPORTANT

The HART Input Data for a channel may be zeroes if HART communications is disabled for that channel. For more information on disabling HART communications, refer to the Disable HART communications and HART CMD 3 Disable functions in the Configuration Map table.

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HART Input Data

Word Bit

1514131211109876543210

0 Reserved C

1 Reserved 2 CH0 HART Field Device Status CH0 HART Comm Status

3 Reserved F

4 CH0 HART Primary Value (IEEE 754-1985 Single-Precision 32 bit floating point) 5 6 CH0 HART Secondary Value (IEEE 754-1985 Single-Precision 32 bit floating point) 7 8 CH0 HART Tertiary Value (IEEE 754-1985 Single-Precision 32 bit floating point) 9 10 CH0 HART Fourth (Quaternary) Value (IEEE 754-1985 Single-Precision 32 bit

floating point)

11 12 CH0 SV Units Code CH0 PV Units Code 13 CH0 FV Units Code CH0 TV Units Code 14…25Words 2…13 for channel 1

V A

7 (HART CMD 3 Communications Status)

CH0 HART Loop Status

C H 0

26…37Words 2…13 for channel 2

38…49Words 2…13 for channel 3

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FLEX I/O Isolated Input HART Analog Module 21

HART Input Data

Word Bit

1514131211109876543210

50…61Words 2…13 for channel 4

62…73Words 2…13 for channel 5

74…85Words 2…13 for channel 6

86…97Words 2…13 for channel 7

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HART Input Data descriptions

CHn: HART CMD 3 Communication Status

CHn: HART Comm Status (HART CMD3 Response first status byte):

CHn: HART Field Device Status (HART CMD3 Response second status byte):

Chn: HART Loop Status: Bit 0: HART enable Bit 1: Device Connected Bit 2: Response Error

Bit 3: CMD 48 Update

Bit 4: HART Loop Tolerance Error

Bit 5: HART Update

Bit 6: HART message

Bit 7: PVA — The primary variable for this channel has been acquired.

SVA — The secondary variable for this channel has been acquired. TVA — The tertiary variable for this channel has been acquired. FVA — The fourth (quaternary) variable for this channel has been acquired.

0: HART CMD3 Communication Disabled or No Error

Refer to User Manual

0: Disabled 0: Not Connected 0: No HART message failure 0: CMD 48 not updated 0: No HART Current Fault 0: HART Device information not updated 0: No new message

1: HART CMD3 Communication Error between Adapter & Module

1: Enabled 1: Connected 1: Response ended in error

1: CMD 48 updated

1:HART Current Fault

1: HART Device information updated since last read

1: HART user message queue has completed a message Reserved

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FLEX I/O Isolated Input HART Analog Module 23

Status Indicator

The OK status indicator is bicolor, red, and green. The indicator flashes green for these reasons:

• The module configuration word is zero (for example,

powerup reset condition).

• The 24V DC user power is off.

• The module is in Configuration mode.

The indicator displays red to indicate the module did not pass the initial hardware test. Recycle power in response to this display.

After powerup, if the status indicator is not flashing green or solid green, recycle module power to verify a proper reset of the bus interface.

Specifications

FLEX I/O 8-input Isolated HART Module - 1794-IF8IH

Attribute Value

Number of inputs 8 isolated Module base Catalog numbers 1794-TB3, 1794-TB3S Resolution 16 bits - unipolar; 15 bits plus sign - bipolar Current 0.320 µA/cnt unipolar; 0.640 µA/cnt bipolar Data format

Conversion type Sigma Delta Update rate see input update rate table Input current terminal 4…20 mA (user configurable)

Engineering Units Percent of Full Scale Proportional Count

0…20 mA (user configurable)

(4)

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FLEX I/O 8-input Isolated HART Module - 1794-IF8IH

Attribute Value

Normal mode rejection ratio

- current terminal

Common mode rejection ratio

Step response to 99% current terminal

Input resistance 249 Ω ±1% Absolute accuracy 0.1% Full Scale @ 25 °C Accuracy drift with

temperature

(1)

Calibration required Factory calibrated

Overload, max ± 32 mA continuous Indicators 1 red/green power/status indicator Isolation voltage 120V (continuous), Basic Insulation Type

Flexbus current external

(2)

input Power dissipation, max 4.8 W @ 31.2V DC Enclosure type rating None (open-style) Terminal block screw torque Determined by installed terminal base Wire size Determined by installed terminal base

>70 dB @ 50/60 Hz (4.17 Hz ADC conversion rate) >65 dB @ 50/60 Hz (10.0 Hz ADC conversion rate) >75 dB @ 50 Hz (16.7 Hz ADC conversion rate) >85 dB @ 60 Hz (19.6 Hz ADC conversion rate)

>60 dB at 50 Hz >60 dB at 60 Hz

4.17 Hz conversion rate = 480 ms

10.0 Hz conversion rate = 200 ms

16.7 Hz conversion rate = 120 ms

19.6 Hz conversion rate = 101 ms 62 Hz conversion rate = 32 ms 470 Hz conversion rate = 4 ms

0.4% Full Scale for 0 °C…55 °C

Can be calibrated in field when necessary

Type tested at 1000V ac for 60 s, between User power to system, channel to system, and channel to channel

5V DC 80 mA 24V DC 190 mA

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FLEX I/O 8-input Isolated HART Module - 1794-IF8IH

Attribute Value

Wiring category

(3)

Wire type Shielded on signal ports Flexbus current 80 mA Thermal dissipation, max 6.8 BTU/hr @31.2V DC Keyswitch position 3 External DC power supply

voltage External DC power supply

voltage range External DC power supply

current Dimensions (HxWxD),

approx. North American

temperature code IEC Temp Code T4

(1)

Includes offset, gain, nonlinearity. and repeatability error terms.

(2)

If 24V DC is removed from the module, input resistance = 10 kΩ.

(3)

Use this Conductor Category information for planning conductor routing. Refer to Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1. The phase conductor is 0.34…2.5 mm². The ground conductor must be equal to or greater than the phase conductor.

(4)

Engineering Units apply to HART data only.

2 on signal ports 3 on power ports

24V DC nom

19.2…31.2V DC (includes 5% AC ripple)

190 mA @ 24V DC

94.0 x 94.0 x 66.0 mm (3.7 x 3.7 x 2.6 in.) with module installed in base

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Environmental

Attribute Value

Temperature, operating 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…55 °C (32…131 °F)

Temperature, nonoperating

Relative humidity IEC 60068-2-30 (Test Db, Unpackaged Damp Heat):

Vibration IEC 60068-2-6 (Test Fc, Operating):

Shock, operating IEC 60068-2-27 (Test Ea, Unpackaged Shock):

Shock, nonoperating IEC 60068-2-27 (Test Ea, Unpackaged Shock):

Emissions CISPR 11:

ESD Immunity IEC 61000-4-2:

Radiated RF Immunity IEC 61000-4-3:

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…85 °C (–40…185 °F)

5…95% non-condensing

5 g @ 10…500 Hz

20 g

25 g

Group 1, Class A

6 kV contact discharges 8 kV air discharges

10V/m with 1 kHz sine-wave 80% AM from 80…2000 MHz 10V/m with 200 Hz 50% Pulse 100% AM at 900 MHz 10V/m with 200 Hz 50% Pulse 100% AM at 1890 MHz 3V/m with 1 kHz sine-wave 80% AM from 2000…2700 MHz

Publication

1794-IN115C-EN-P - April 2009

FLEX I/O Isolated Input HART Analog Module 27

Environmental

Attribute Value

EFT/B Immunity IEC 61000-4-4:

±3 kV at 5 kHz on signal ports

Surge Transient Immunity

IEC 61000-4-5: ±2 kV line-earth(CM) on shielded ports

Conducted RF Immunity IEC 61000-4-6:

10V rms with 1 kHz sine-wave 80%AM from 150 kHz…80 MHz

Certifications

Certification (when product is marked)

Valu e

(1)

c-UL-us UL Listed Industrial Control Equipment, certified for US and

Canada. See UL File E65584.

UL Listed for Class I, Division 2 Group A,B,C,D Hazardous Locations, certified for U.S. and Canada. See UL File E194810.

CE European Union 2004/108/EC EMC Directive, compliant with:

EN 61326-1; Meas./Control/Lab., Industrial Requirements EN 61000-6-2; Industrial Immunity EN 61000-6-4; Industrial Emissions EN 61131-2; Programmable Controllers (Clause 8, Zone A & B)

European Union 2006/95/EC LVD, copliant with:

EN 61131-2; Programmable Controllers (Clause 11)

C-Tick Australian Radiocommunications Act, compliant with:

AS/NZS CISPR 11; Industrial Emissions

Ex European Union 94/9/EC ATEX Directive, compliant with:

EN 60079-15; Potentially Explosive Atmospheres, Protection "n" (II 3 G Ex nA IIC T4 X) EN 60079-0; General Requirements (Zone 2)

(1)

See the Product Certification link at http://www.ab.com for Declaration of Conformity, Certificates, and other certification details.

Publication

1794-IN115C-EN-P - April 2009

Rockwell Automation Support

Rockwell Automation provides technical information on the Web to assist you in using its products. At http://support.rockwellautomation.com

, you can find technical manuals, a knowledge base of FAQs, technical and application notes, sample code and links to software service packs, and a MySupport feature that you can customize to make the best use of these tools.

For an additional level of technical phone support for installation, configuration, and troubleshooting, we offer TechConnect support programs. For more information, contact your local distributor or Rockwell Automation representative, or visit http://support.rockwellautomation.com

Installation Assistance

If you experience a problem within the first 24 hours of installation, please review the information that's contained in this manual. You can also contact a special Customer Support number for initial help in getting your product up and running.

United States 1.440.646.3434

Outside United States Please contact your local Rockwell Automation representative for any

Monday – Friday, 8 a.m. – 5 p.m. EST

technical support issues.

New Product Satisfaction Return

Rockwell Automation tests all of its products to ensure that they are fully operational when shipped from the manufacturing facility. However, if your product is not functioning and needs to be returned, follow these procedures.

United States Contact your distributor. You must provide a Customer Support case number

Outside United States Please contact your local Rockwell Automation representative for the return

Allen-Bradley, Rockwell Automation, TechConnect, and FLEX I/O are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.

(see phone number above to obtain one) to your distributor in order to complete the return process.

procedure.

Publication 1794-IN115C-EN-P - April 2009 PN-44688

Rockwell Automation 1794-IF8IH User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Important User Information

Environment and Enclosure

Preventing Electrostatic Discharge

North American Hazardous Location Approval

European Hazardous Location Approval

Install the Module

Wire the Module

Ground the Module

Module Wiring

Cyclic HART Input Data

Status Indicator

Specifications