Allen-bradley 1794-ie8 Flex I-o Input Analog Modules Instruction Manual (+ PDF)

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1 1794-IE8 FLEX I-O Input Analog Modules

2 Product Information

2.1 Summary of Changes

2.2 Environment and Enclosure

2.3 UK and European Hazardous Location Approval

2.4 IEC Hazardous Location Approval

2.5 North American Hazardous Location Approval

3 Product Usage Instructions

3.1 Documents / Resources

3.1.1 References

1794-IE8 FLEX I-O Input Analog Modules

Product Information

The FLEX I/O Input, Output, and Input/Output Analog Modules are
a series of modules designed for use in industrial applications.
The catalog numbers for these modules are 1794-IE8, 1794-OE4, and
1794-IE4XOE2, Series B.

Summary of Changes

This publication contains new or updated information regarding
various aspects of the product. The changes include updates to
templates, catalogs, environment and enclosure specifications,
hazardous location approvals, special conditions for safe use,
general specifications, environmental specifications, and
certifications.

Environment and Enclosure

When inserting or removing the module while backplane power is
on, it is important to note that an electrical arc can occur, which
may cause an explosion in hazardous location installations.
Therefore, ensure that power is removed or the area is nonhazardous
before proceeding.

UK and European Hazardous Location Approval

The product has received approval for use in hazardous locations
in the UK and Europe.

IEC Hazardous Location Approval

The product has received approval for use in hazardous locations
according to IEC standards.

North American Hazardous Location Approval

The following modules are approved for use in hazardous
locations in North America: 1794-IE8, 1794-OE4, and 1794-IE4XOE2,
Series B.

Product Usage Instructions

Before installing, configuring, or using the product, or
performing maintenance on it, it is essential to read the user
manual and other relevant documents listed in the “Additional
Resources” section. These documents provide information on
installation, configuration, and operation of the equipment. Users
must also read and understand the installation and wiring
instructions, as well as comply with applicable laws, codes, and
standards.
Activities such as installation, adjustment, commissioning,
operation, mounting, dismounting, and maintenance should only be
carried out by trained personnel in accordance with established
practices.
Using the equipment in a manner not specified by the
manufacturer may result in the improper functioning of equipment
protection.
During the mounting of all devices, ensure that no debris
(metal chips, wire strands, etc.) falls into the module. Debris
falling into the module can cause damage when power is
applied.
Follow the provided wiring instructions to connect the analog
inputs and outputs.

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Installation Instructions
Original Instructions

FLEX I/O Input, Output, and Input/Output Analog Modules
Catalog Numbers 1794-IE8, 1794-OE4, and 1794-IE4XOE2, Series B

Topic

Page

Summary of Changes

Installing Your Analog Input/Output Module

Connecting Wiring for the Analog Inputs and Outputs

Specifications

Summary of Changes

This publication contains the following new or updated information. This list includes substantive updates only and is not intended to reflect all changes.

Topic Updated template Removed K catalogs Updated Environment and Enclosure Updated UK and European Hazardous Location Approval Updated IEC Hazardous Location Approval Updated Special Conditions for Safe Use Updated General Specifications Updated Environmental Specifications Updated Certifications

Page throughout throughout
3 3 3 4 11 11 12

FLEX I/O Input, Output, and Input/Output Analog Modules Installation Instructions

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. Activities including 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. If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

ATENCIÓN: Antes de instalar, configurar, poner en funcionamiento o realizar el mantenimiento de este producto, lea este documento y los documentos listados en la sección Recursos adicionales acerca de la instalación, configuración y operación de este equipo. Los usuarios deben familiarizarse con las instrucciones de instalación y cableado y con los requisitos de todos los códigos, leyes y estándares vigentes. El personal debidamente capacitado debe realizar las actividades relacionadas a la instalación, ajustes, puesta en servicio, uso, ensamblaje, desensamblaje y mantenimiento de conformidad con el código de práctica aplicable. Si este equipo se usa de una manera no especificada por el fabricante, la protección provista por el equipo puede resultar afectada. ATENÇÃO: Leia este e os demais documentos sobre instalação, configuração e operação do equipamento que estão na seção Recursos adicionais antes de instalar, configurar, operar ou manter este produto. Os usuários devem se familiarizar com as instruções de instalação e fiação além das especificações para todos os códigos, leis e normas aplicáveis. É necessário que as atividades, incluindo instalação, ajustes, colocação em serviço, utilização, montagem, desmontagem e manutenção sejam realizadas por pessoal qualificado e especializado, de acordo com o código de prática aplicável. Caso este equipamento seja utilizado de maneira não estabelecida pelo fabricante, a proteção fornecida pelo equipamento pode ficar prejudicada.
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ACHTUNG: Lesen Sie dieses Dokument und die im Abschnitt ,,Weitere Informationen”aufgeführten Dokumente, die Informationen zu Installation, Konfiguration und Bedienung dieses Produkts enthalten, bevor Sie dieses Produkt installieren, konfigurieren, bedienen oder warten. Anwender müssen sich neben den Bestimmungen aller anwendbaren Vorschriften, Gesetze und Normen zusätzlich mit den Installations- und Verdrahtungsanweisungen vertraut machen. Arbeiten im Rahmen der Installation, Anpassung, Inbetriebnahme, Verwendung, Montage, Demontage oder Instandhaltung dürfen nur durch ausreichend geschulte Mitarbeiter und in Übereinstimmung mit den anwendbaren Ausführungsvorschriften vorgenommen werden.

Wenn das Gerät in einer Weise verwendet wird, die vom Hersteller nicht vorgesehen ist, kann die Schutzfunktion beeinträchtigt sein. ATTENTION : Lisez ce document et les documents listés dans la section Ressources complémentaires relatifs à l’installation, la configuration et le fonctionnement de cet équipement avant d’installer, configurer, utiliser ou entretenir ce produit. Les utilisateurs doivent se familiariser avec les instructions d’installation et de câblage en plus des exigences relatives aux codes, lois et normes en vigueur.

Les activités relatives à l’installation, le réglage, la mise en service, l’utilisation, l’assemblage, le démontage et l’entretien doivent être réalisées par des personnes formées selon le code de pratique en vigueur. Si cet équipement est utilisé d’une façon qui n’a pas été définie par le fabricant, la protection fournie par l’équipement peut être compromise.

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. ATTENZIONE Prima di installare, configurare ed utilizzare il prodotto, o effettuare interventi di manutenzione su di esso, leggere il presente documento ed i documenti elencati nella sezione “Altre risorse”, riguardanti l’installazione, la configurazione ed il funzionamento dell’apparecchiatura. Gli utenti devono leggere e comprendere le istruzioni di installazione e cablaggio, oltre ai requisiti previsti dalle leggi, codici e standard applicabili.

Le attività come installazione, regolazioni, utilizzo, assemblaggio, disassemblaggio e manutenzione devono essere svolte da personale adeguatamente addestrato, nel rispetto delle procedure previste. Qualora l’apparecchio venga utilizzato con modalità diverse da quanto previsto dal produttore, la sua funzione di protezione potrebbe venire compromessa.

DKKAT: Bu ürünün kurulumu, yapilandirilmasi, iletilmesi veya bakimi öncesinde bu dokümani ve bu ekipmanin kurulumu, yapilandirilmasi ve iletimi ile ilgili lave Kaynaklar bölümünde yer listelenmi dokümanlari okuyun. Kullanicilar yürürlükteki tüm yönetmelikler, yasalar ve standartlarin gereksinimlerine ek olarak kurulum ve kablolama talimatlarini da örenmek zorundadir. Kurulum, ayarlama, hizmete alma, kullanma, parçalari birletirme, parçalari sökme ve bakim gibi aktiviteler sadece uygun eitimleri almi kiiler tarafindan yürürlükteki uygulama yönetmeliklerine uygun ekilde yapilabilir. Bu ekipman üretici tarafindan belirlenmi amacin diinda kullanilirsa, ekipman tarafindan salanan koruma bozulabilir.

POZOR: Nez zacnete instalovat, konfigurovat ci provozovat tento výrobek nebo provádt jeho údrzbu, pectte si tento dokument a dokumenty uvedené v cásti Dodatecné zdroje ohledn instalace, konfigurace a provozu tohoto zaízení. Uzivatelé se musejí vedle pozadavk vsech relevantních vyhlásek, zákon a norem nutn seznámit také s pokyny pro instalaci a elektrické zapojení. Cinnosti zahrnující instalaci, nastavení, uvedení do provozu, uzívání, montáz, demontáz a údrzbu musí vykonávat vhodn proskolený personál v souladu s píslusnými provádcími pedpisy. Pokud se toto zaízení pouzívá zpsobem neodpovídajícím specifikaci výrobce, mze být narusena ochrana, kterou toto zaízení poskytuje. UWAGA: Przed instalacj, konfiguracj, uytkowaniem lub konserwacj tego produktu naley przeczyta niniejszy dokument oraz wszystkie dokumenty wymienione w sekcji Dodatkowe ródla omawiajce instalacj, konfiguracj i procedury uytkowania tego urzdzenia. Uytkownicy maj obowizek zapozna si z instrukcjami dotyczcymi instalacji oraz oprzewodowania, jak równie z obowizujcymi kodeksami, prawem i normami.

Dzialania obejmujce instalacj, regulacj, przekazanie do uytkowania, uytkowanie, monta, demonta oraz konserwacj musz by wykonywane przez odpowiednio przeszkolony personel zgodnie z obowizujcym kodeksem postpowania. Jeli urzdzenie jest uytkowane w sposób inny ni okrelony przez producenta, zabezpieczenie zapewniane przez urzdzenie moe zosta ograniczone. OBS! Läs detta dokument samt dokumentet, som står listat i avsnittet Övriga resurser, om installation, konfigurering och drift av denna utrustning innan du installerar, konfigurerar eller börjar använda eller utföra underhållsarbete på produkten. Användare måste bekanta sig med instruktioner för installation och kabeldragning, förutom krav enligt gällande koder, lagar och standarder.

Åtgärder som installation, justering, service, användning, montering, demontering och underhållsarbete måste utföras av personal med lämplig utbildning enligt lämpligt bruk.

Om denna utrustning används på ett sätt som inte anges av tillverkaren kan det hända att utrustningens skyddsanordningar försätts ur funktion. LET OP: Lees dit document en de documenten die genoemd worden in de paragraaf Aanvullende informatie over de installatie, configuratie en bediening van deze apparatuur voordat u dit product installeert, configureert, bediend of onderhoudt. Gebruikers moeten zich vertrouwd maken met de installatie en de bedradingsinstructies, naast de vereisten van alle toepasselijke regels, wetten en normen.

Activiteiten zoals het installeren, afstellen, in gebruik stellen, gebruiken, monteren, demonteren en het uitvoeren van onderhoud mogen uitsluitend worden uitgevoerd door hiervoor opgeleid personeel en in overeenstemming met de geldende praktijkregels.

Indien de apparatuur wordt gebruikt op een wijze die niet is gespecificeerd door de fabrikant, dan bestaat het gevaar dat de beveiliging van de apparatuur niet goed werkt.

Rockwell Automation Publication 1794-IN100C-EN-P – October 2022

FLEX I/O Input, Output, and Input/Output Analog Modules Installation Instructions
Environment and Enclosure
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 5V A 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, publication 1770-4.1, for additional installation requirements. · NEMA Standard 250 and EN/IEC 60529, as applicable, for explanations of the degrees of protection provided by enclosures.
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.
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.
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. See the Industrial Automation Wiring and Grounding Guidelines, Rockwell Automation publication 1770-4.1, for more information.
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.
UK and European Hazardous Location Approval
The following analog input/output modules are European Zone 2 approved: 1794-IE8, 1794-OE4, and 1794-IE4XOE2, Series B. 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 Schedule 1 of UKEX and Annex II of EU Directive 2014/34/EU. See the UKEx and EU Declaration of Conformity at rok.auto/certifications for details. · The type of protection is Ex ec IIC T4 Gc (1794 IE8) according to EN IEC 60079-0:2018 and EN IEC 60079-7:2015+A1:2018. · The type of protection is Ex nA IIC T4 Gc (1794-OE4 and 1794-IE4XOE2) according to EN 60079-0:2009 & EN 60079-15:2010. · Comply to Standard EN IEC 60079-0:2018 & EN IEC 60079-7:2015+A1:2018 reference certificate number DEMKO 14 ATEX 1342501X and UL22UKEX2378X. · Comply to Standards: EN 60079-0:2009, EN 60079-15:2010, reference certificate number LCIE 01ATEX6020X. · 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 UKEX regulation 2016 No. 1107 and ATEX directive 2014/34/EU.
IEC Hazardous Location Approval
The following applies to products marked with IECEx certification (1794-IE8): · 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 to IEC 60079-0. · The type of protection is Ex ec IIC T4 Gc according to IEC 60079-0 and IEC 60079-7. · Comply to Standards IEC 60079-0, Explosive atmospheres Part 0: Equipment – General requirements, Edition 7, Revision Date 2017, IEC 60079-7, 5.1 Edition revision date 2017, Explosive atmospheres – Part 7: Equipment protection by increased safety “e”, reference IECEx certificate number IECEx UL 14.0066X.

Rockwell Automation Publication 1794-IN100C-EN-P – October 2022

FLEX I/O Input, Output, and Input/Output Analog Modules Installation Instructions

WARNING: Special Conditions for Safe Use: · This equipment shall be mounted in an UKEX/ATEX/IECEx Zone 2 certified enclosure with a minimum ingress protection rating of at least IP54 (in accordance
with EN/IEC 60079-0) 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. · Transient protection shall be provided that is set at a level not exceeding 140% of the peak rated voltage value at the supply terminals to the equipment. · This equipment must be used only with UKEX/ATEX/IECEx certified Rockwell Automation 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. · Earthing is accomplished through mounting of modules on rail.

North American Hazardous Location Approval

The following modules are North American Hazardous Location approved: 1794-IE8, 1794-OE4, and 1794-IE4XOE2, Series B.

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.

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 I, Division 2.

Installing Your Analog Input/Output Module

The FLEXTM I/O Input, Output and Input/Output Analog module mounts on a 1794 terminal base.

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

1. Rotate the keyswitch (1) on the terminal base (2) clockwise to position 3 (1794-IE8), 4 (1794-OE4) or 5 (1794-IE4XOE2) as required.
2. Make certain the Flexbus connector (3) is pushed all the way to the left to connect with the neighboring terminal base or adapter. You cannot install the module unless the connector is fully extended.

Rockwell Automation Publication 1794-IN100C-EN-P – October 2022

FLEX I/O Input, Output, and Input/Output Analog Modules Installation Instructions
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 (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. The module is seated when the latching mechanism (7) is locked into the module.

Connecting Wiring for the Analog Inputs and Outputs
1. Connect individual input/output wiring to numbered terminals on the 0-15 row (A) for 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, and 1794-TB3TS, or on row (B) for the 1794-TBN as indicated in Table 1, Table 2, and Table 3.
IMPORTANT Use Belden 8761 cable for signal wiring.
2. Connect channel common/return to the associated terminal on row (A) or row (B) for the 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, and 1794-TB3TS, or on row C for the 1794-TBN. For input devices requiring terminal base power, connect the channel power wiring to the associated terminal on row (C).
3. Connect any signal wiring shields to functional ground as near as possible to the module. 1794-TB3T or 1794-TB3TS only: Connect to earth ground terminals C-39…C-46.
4. Connect the +V DC power to terminal 34 on the 34-51 row (C) and -V common/return to terminal 16 on the B row.

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

5. If daisychaining +V 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. 6. If continuing DC common (-V) to the next base unit, connect a jumper from terminal 33 (common) on this base unit to terminal 16 on the next base unit.

Table 1 – Wiring Connections for the 1794-IE8 Analog Input Modules

Channel
Input 0 Input 1 Input 2 Input 3 Input 4 Input 5 Input 6 Input 7 -V DC Common +V DC Power Chassis ground (Shield)

Signal Type

Label Marking

1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS

1794-TB3, 1794-TB3S

1794-TB2, 1794-TB3, 1794-TB3S

Input

Power(1)

Common Terminal

Current

A-0

C-35

B-17

Voltage

A-1

C-36

B-18

Current

A-2

C-37

B-19

Voltage

A-3

C-38

B-20

Current

A-4

C-39

B-21

Voltage

A-5

C-40

B-22

Current

A-6

C-41

B-23

Voltage

A-7

C-42

B-24

Current

A-8

C-43

B-25

Voltage

A-9

C-44

B-26

Current

A-10

C-45

B-27

Voltage

A-11

C-46

B-28

Current

A-12

C-47

B-29

Voltage

A-13

C-48

B-30

Current

A-14

C-49

B-31

Voltage

A-15

C-50

B-32

1794-TB2, 1794-TB3, and 1794-TB3S – Terminals 16…33 are internally connected in the terminal base unit. 1794-TB3T and 1794-TB3TS – Terminals 16, 17, 19, 21, 23, 25, 27, 29, 31, and 33 are internally connected in the terminal base unit.

1794-TB3 and 1794-TB3S – Terminals 34…51 are internally connected in the terminal base unit. 1794-TB3T and 1794-TB3TS – Terminals 34, 35, 50, and 51 are internally connected in the terminal base unit. 1794-TB2 – Terminals 34 and 51 are internally connected in the terminal base unit.

1794-TB3T and 1794-TB3TS – Terminals 39…46 are internally connected to chassis ground.

1794-TB3T, 1794-TB3TS

Shield

B-17 C-39
B-17

B-19 C-40
B-19

B-21 C-41
B-21

B-23 C-42
B-23

B-25 C-43
B-25

B-27

C-44

B-29

C-45

B-29

B-31 C-46
B-31

(1) Use when transmitter requires terminal base power.

Rockwell Automation Publication 1794-IN100C-EN-P – October 2022

FLEX I/O Input, Output, and Input/Output Analog Modules Installation Instructions

Terminal Base Wiring for the 1794-IE8

I V I V I V I V I V I V I VI V

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

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

0 -15 Input

16-33 24V Common

C 34-51 24V Power

AC or DC
4-Wire Current Transmitter (External power)

AC or DC
4-Wire Voltage Transmitter (External power)

T
+
3-Wire Transmitter (Terminal base powered)

T
i
2-Wire Current Transmitter (Terminal base powered loop)

1794-TB3 base shown

Table 2 – Wiring Connections for the 1794-OE4 Output Modules

Channel Output 0
Output 1
Output 2
Output 3 -V DC Common +V DC Power Chassis ground (Shield)

Signal Type

Label Marking

1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS

Output Terminal(1)

Shield (1794-TB3T, 1794-TB3TS)

Current

I0 Ret

A-0 C-39
A-1

Voltage Voltage

V0 V0 Ret

A-2 C-40
A-3

Current

I1 Ret

A-4 C-41
A-5

Voltage

V1 Ret

A-6 C-42
A-7

Current

I2 Ret

A-8

A-9

C-43

Voltage Voltage

V2 V2 Ret

A-10 A-11

C-44

Current

I3 Ret

A-12 C-45
A-13

Voltage Voltage

V3 V3 Ret

A-14 C-46
A-15

1794-TB3 and 1794-TB3S – Terminals 16…33 are internally connected in the terminal base unit. 1794-TB3T and 1794-TB3TS – Terminals 16, 17, 19, 21, 23, 25, 27, 29, 31, and 33 are internally connected in the terminal base unit. 1794-TB2 – Terminals 16 and 33 are internally connected in the terminal base unit

1794-TB3T, 1794-TB3TS – Terminals 39…46 are internally connected to chassis ground.

1794-TBN Output Terminal(2) B-0 C-1 B-2 C-3 B-4 C-5 B-6 C-7 B-8 C-9 B-10 C-11 B-12 C-13 B-14 C-15

(1) 1, 3, 5, 7, 9, 11, 13, and 15 are internally connected in the module to 24V DC common. (2) 1, 3, 5, 7, 9, 11, 13, and 15 are internally connected in the module to 24V DC common.

Terminal Base Wiring for the 1794-OE4

Even Numbered Terminals 0 thru 14 33

Row B

16, 0, 2, 4, 6,

8, 10, 12, 14, 33

Row C 34, 1, 3, 5, 7,

51 9, 11, 13, 15, 51

I+ Current Output D_evice
Current only 2-Wire Output
Device

I+

Voltage _

Current

Output

Device +

D_evice

DC only 3-Wire Output

Current only 2-Wire Output

Device

I+
Voltage _ Output Device +
DC only 3-Wire Output
Device

1794-TBN base shown

Rockwell Automation Publication 1794-IN100C-EN-P – October 2022

FLEX I/O Input, Output, and Input/Output Analog Modules Installation Instructions

Table 3 – Wiring Connections for the 1794-IE4XOE2 4-Input 2-Output Analog Module

Channel

Signal Type

Label Marking

1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS
Input/Output Terminal(1)

1794-TB3, 1794-TB3S Power Terminal(2)

1794-TB2, 1794-TB3, 1794-TB3S
Common Terminal

Current

A-0

Input 0

Voltage

A-1

C-35

B-17

C-36

B-18

Input 1

Current

Voltage

A-2 A-3

C-37

B-19

C-38

B-20

Input 2

Current

A-4

Voltage

A-5

C-39

B-21

C-40

B-22

Current

A-6

Input 3

Voltage

A-7

C-41

B-23

C-42

B-24

Current

A-8

Current

RET

A-9

Output 0

Voltage

A-10

Voltage

RET

A-11

Current

A-12

Current

RET

A-13

Output 1

Voltage

A-14

Voltage

RET

A-15

-V DC Common

+V DC Power

Chassis ground (Shield) 1794-TB3T and 1794-TB3TS – Terminals 39…46 are internally connected to chassis ground.

(1) A-9, 11, 13 and 15 are internally connected in the module to 24V DC common. (2) Use when transmitter requires terminal base power.

1794-TB3T, 1794-TB3TS

Shield

B-17 C-39
B-17

B-19 B-19

C-40

B-21

C-41

B-21

B-23 C-42
B-23

C-43

C-44

C-45

C-46

Terminal Base Wiring for the 1794-IE4XOE2

I V I VIV I V I R VR IR VR
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

+I –
Current Input +-
AC or DC 4-Wire Current
Transmitter

I+
Voltage _ Input
+
DC only 3-Wire
Transmitter

I+ Current Output Device
_
Current only 2-Wire Output
Device

I+ Voltage _ Output Device +
DC only 3-Wire Output
Device

A 0 -15 B 16-33 C 34-51
1794-TB3 base shown

Rockwell Automation Publication 1794-IN100C-EN-P – October 2022

FLEX I/O Input, Output, and Input/Output Analog Modules Installation Instructions

Input Map (Read) – 1794-IE8

Dec.

Oct.

Word 0

Analog input value for Channel 0

Word 1

Analog input value for Channel 1

Word 2

Analog input value for Channel 2

Word 3

Analog input value for Channel 3

Word 4

Analog input value for Channel 4

Word 5

Analog input value for Channel 5

Word 6

Analog input value for Channel 6

Word 7

Analog input value for Channel 7

Word 8

Not used – set to zero

Where: PU = Power up inconfigured S = Sign bit in 2’s complement U = Underrange for specified channel

Output Map (Write) – 1794-IE8

Dec.

Oct.

Word 3

F1 F0

Where: C = Configure select bit F = Full range bit

Input Map (Read) – 1794-IE4XOE2

Dec.

Oct.

Word 0

Analog input value for Channel 0

Word 1

Analog input value for Channel 1

Word 2

Analog input value for Channel 2

Word 3

Analog input value for Channel 3

Word 4

Not used – set to zero

W0 U3

Where: PU = Power up inconfigured S = Sign bit in 2’s complement W1 and W0 = Diagnostic bits for current output. Wire off current loop status for output channels 0 and 1. U = Underrange for specified channel

Output Map (Write) – 1794-IE4XOE2

Dec.

Oct.

Word 0

Analog output data – Channel 0

Word 1

Analog output data – Channel 1

Word 2

Not used – set to 0

M1 M0

Word 3

F2 F1 F0

Words 4 and 5

Not used – set to 0

Word 6

Safe state value for Channel 0

Word 7

Safe state value for Channel 1

Where: PU = Power up inconfigured CF = In configuration mode DN = Calibration accepted U = Underrange for specified channel P0 and P1 = Outputs holding in response to Q0 and Q1

FP = Field power off BD = Bad calibration W1 and W0 = Wire off current loop status for output channels 0 and 1 V = Overrange for specified channel

Rockwell Automation Publication 1794-IN100C-EN-P – October 2022

FLEX I/O Input, Output, and Input/Output Analog Modules Installation Instructions

Range Selection Bits – 1794-IE8 and 1794-IE4XOE2

1794-IE8

In Ch. 0

1794IE4XOE2

In Ch. 0

Dec. Bits

00 08

0…10V DC/0…20 mA 1

4…20 mA

-10…+10V DC

Off(1)

Where: C = Configure Select bit F = Full range

In Ch. 1

In Ch.1

In Ch. 2

In Ch. 3

(1) When configured to Off, individual input channels will return 0000H; Output channels will drive 0V/0 mA.

Input Map (Read) – 1794-OE4

Dec.

Oct.

Word 0

Not used – set to 0

Where: PU = Power up bit W…W3 = Wire off current loop status for output channels

In Ch. 4

Out Ch. 0

In Ch. 5

Out Ch. 1

In Ch. 6

In Ch. 7

F6 C6

06 14

W2 W1 W0

Output Map (Write) – 1794-OE4

Dec.

Oct.

Word 0

Output Data Channel 0

Word 1

Output Data Channel 1

Word 2

Output Data Channel 2

Word 3

Output Data Channel 3

Word 4

Not used – set to 0

Word 5

Not used – set to 0

Word 6…9

Not used – set to 0

Word 10

Safe state value for Channel 0

Word 11

Safe state value for Channel 1

Word 12

Safe state value for Channel 2

Word 13

Safe state value for Channel 3

Where: S = Sign bit in 2’s complement M = Multiplex control bit C = Configure select bit F = Full range bit

Range Selection Bits – 1794-OE4

Channel No.
Dec. Bits 0…10V DC/0…20 mA 4…20 mA -10…+10V DC Off(1) Where: C = Configure select bit F = Full range

In Ch. 0

(1) When configured to Off, individual output channels will drive 0V/0 mA.

In Ch.1

In Ch. 2

In Ch. 3

Rockwell Automation Publication 1794-IN100C-EN-P – October 2022

FLEX I/O Input, Output, and Input/Output Analog Modules Installation Instructions

Specifications
Input Specifications
Attribute Number of inputs, nonisolated Resolution
Voltage Current Data format Conversion type Conversion rate Input current terminal, user configurable
Input voltage terminal, user configurable
Normal mode rejection ratio Voltage terminal Current terminal
Step response to 63% Input impedance
Input resistance voltage
Absolute accuracy(1) Accuracy drift with temperature Calibration required Maximum overload, one channel at a time Indicators
(1) Includes offset, gain, nonlinearity, and repeatability error terms.
Output Specifications
Attribute Number of outputs, nonisolated Resolution
Voltage Current Data format Conversion type
Output current terminal, user configurable
Output voltage terminal, user configurable
Step response to 63% – voltage or current terminal Current load on voltage output, max Absolute accuracy(1)
Voltage terminal Current terminal Accuracy drift with temperature Voltage terminal Current terminal Resistive load on mA output
(1) Includes offset, gain, nonlinearity, and repeatability error terms.

Value 1794-IE8 – 8 single-ended 1794-IE4XOE2 – 4 single-ended 12 bits unipolar; 11 bits plus sign bipolar 2.56mV/cnt unipolar; 5.13mV/cnt bipolar 5.13µA/cnt Left justified, 16 bit 2’s complement Successive approximation 256µs all channels 4…20 mA 0…20 mA +10V 0…10V
3 dB @ 17 Hz; -20 dB/decade -10 dB @ 50 Hz; -11.4 dB @ 60 Hz -3 dB @ 9 Hz; -20 dB/decade -15.3 dB @ 50 Hz; -16.8 dB @ 60Hz Voltage terminal – 9.4 ms Current terminal – 18.2 ms Voltage terminal – 100 k Current terminal – 238 Voltage terminal – 200 k Current terminal – 238 0.20% full scale @ 25 °C Voltage terminal – 0.00428% full scale/ °C Current terminal – 0.00407% full scale/ °C None required 30V continuous or 32 mA continuous 1 green power indicator
Value 1794-OE4 – 4 single-ended, nonisolated 1794-IE4XOE2 – 2 single-ended 12 bits plus sign 0.156mV/cnt 0.320 µA/cnt Left justified, 16 bit 2’s complement Pulse width modulation 0 mA output until module is configured 4…20 mA 0…20 mA 0V output until module is configured +10V 0…10V 24 ms 3 mA
0.133% full scale @ 25 °C 0.425% full scale @ 25 °C
0.0045% full scale/ °C 0.0069% full scale/ °C 15…750 @ 24V DC

Rockwell Automation Publication 1794-IN100C-EN-P – October 2022

FLEX I/O Input, Output, and Input/Output Analog Modules Installation Instructions

General Specifications for 1794-IE8, 1794-OE4, and 1794-IE4XOE2

Module location Terminal base screw torque Isolation voltage

1794-IE8 and 1794-IE4XOE2 – 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, and 1794-TB3TS terminal base units
1794-OE4 – 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, and 1794-TBN terminal base units
7 lb·in (0.8 N·m) 1794-TBN – 9 lb·in (1.0 N·m)
Tested at 850V DC for 1 s between user power to system No isolation between individual channels

External DC power supply Voltage range Supply current
Dimensions, with module installed Flexbus current Power dissipation, max
Thermal dissipation, max
Keyswitch position
North American temp code UKEX/ATEX temp code IECEx temp code

24V DC nominal 10.5…31.2V DC (includes 5% AC ripple) 1794-IE8 – 60 mA @ 24V DC 1794-OE4 – 150 mA @ 24V DC 1794-IE4XOE2 – 165 mA @ 24V DC 31.8 H x 3.7 W x 2.1 D inches 45.7 H x 94 W x 53.3 D mm 15 mA 1794-IE8 – 3.0 W @ 31.2V DC 1794-OE4 – 4.5 W @ 31.2V DC 1794-IE4XOE2 – 4.0 W @ 31.2V DC 1794-IE8 – 10.2 BTU/hr @ 31.2V dc 1794-OE4 – 13.6 BTU/hr @ 31.2V dc 1794-IE4XOE2 – 15.3 BTU/hr @ 31.2V d 1794-IE8 – 3 1794-OE4 – 4 1794-IE4XOE2 – 5 1794-IE4XOE2 – T4A 1794-IE8 – T5 1794-OE4 – T4 T4 1794-IE8 – T4

Environmental Specifications

Attribute
Temperature, operating
Temperature, surrounding air, max
Temperature, storage
Relative humidity Vibration
Shock, operating Shock, nonoperating Emissions ESD immunity
Radiated RF immunity Conducted RF immunity EFT/B immunity Surge transient immunity Enclosure type rating Conductors
Wire size Category(1)

Value 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) 55 °C (131 °F) 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) IEC 60068-2-30 (Test Db, unpackaged nonoperating damp heat): 5…95% non-condensing IEC60068-2-6 (Test Fc, operating): 5g @ 10…500Hz IEC60068-2-27 (Test Ea, unpackaged shock): 30g IEC60068-2-27 (Test Ea, unpackaged shock): 50g IEC 61000-6-4 EC 61000-4-2: 4kV contact discharges 8kV air discharges IEC 61000-4-3: 10V/m with 1 kHz sine-wave 80% AM from 80…6000 MHz IEC 61000-4-6: 10V rms with 1 kHz sine-wave 80%AM from 150 kHz…30 MHz IEC 61000-4-4: ±2 kV at 5 kHz on signal ports IEC 61000-4-5: ±2 kV line-earth (CM) on shielded ports None
22…12AWG (0.34 mm2…2.5 mm2) stranded copper wire rated at 75 °C or higher 3/64 inch (1.2 mm) insulation maximum 2

(1) You use this category information for planning conductor routing as described in the Industrial Automation Wiring and Grounding Guidelines, Rockwell Automation publication 1770-4.1.

Rockwell Automation Publication 1794-IN100C-EN-P – October 2022

FLEX I/O Input, Output, and Input/Output Analog Modules Installation Instructions

Certifications

Certifications (when product is marked)(1) c-UL-us
UK and CE

Value 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. UK Statutory Instrument 2016 No. 1091 and European Union 2014/30/EU EMC Directive, compliant with:
EN 61326-1; Meas./Control/Lab., Industrial Requirements EN 61000-6-2; Industrial Immunity EN 61131-2; Programmable Controllers EN 61000-6-4; Industrial Emissions

UK Statutory Instrument 2012 No. 3032 and European Union 2011/65/EU RoHS, compliant with: EN 63000; Technical documentation

RCM

Australian Radiocommunications Act, compliant with: EN 61000-6-4; Industrial Emissions

UK Statutory Instrument 2016 No. 1107 and European Union 2014/34/EU ATEX Directive, compliant with (1794-IE8):

EN IEC 60079-0; General Requirements

EN IEC 60079-7; Explosive Atmospheres, Protection “e”

II 3 G Ex ec IIC T4 Gc

DEMKO 14 ATEX 1342501X

UL22UKEX2378X

IECEx
Morocco CCC KC EAC

European Union 2014/34/EU ATEX Directive, compliant with (1794-OE4 and 1794-IE4XOE2): EN 60079-0; General Requirements EN 60079-15; Potentially Explosive Atmospheres, Protection “n” II 3 G Ex nA IIC T4 Gc LCIE 01ATEX6020X
IECEx System, compliant with (1794-IE8): IEC 60079-0; General Requirements IEC 60079-7; Explosive Atmospheres, Protection “e” Ex ec IIC T4 Gc IECEx UL 14.0066X
Arrêté ministériel n° 6404-15 du 29 ramadan 1436 CNCA-C23-01 CNCA-C23-01 CCC Implementation Rule Explosion-Proof Electrical Products Korean Registration of Broadcasting and Communications Equipment, compliant with:
Article 58-2 of Radio Waves Act, Clause 3 Russian Customs Union TR CU 020/2011 EMC Technical Regulation

(1) See the Product Certification link at rok.auto/certifications for Declaration of Conformity, Certificates, and other certification details.

Rockwell Automation Publication 1794-IN100C-EN-P – October 2022

Notes:

FLEX I/O Input, Output, and Input/Output Analog Modules Installation Instructions

Rockwell Automation Publication 1794-IN100C-EN-P – October 2022

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