1794 FLEX I/O

Product Overview
  
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FLEX I/O Modules

FLEX I/O offers all the functions of larger rack-based I/O without the space requirements. Its cost effectiveness, flexibility, modularity, and reliability have made it the most popular distributed I/O platform with over 4 million modules sold.

FLEX I/O helps eliminate multiple long wiring runs, reduces terminations per point, decreases engineering and installation costs and time, and substantially reduces downtime. It complements all processor platforms from Rockwell Automation for a distributed I/O solution.

Your FLEX I/O system can communicate on EtherNet/IP, ControlNet, DeviceNet, and many other open networks including, but not limited to, Remote I/O, PROFIBUS DP, and Interbus-S. Independently select the I/O, termination style, and network to meet your application needs. Adapters and other components are available for adding to your system as your requirements change.

Conformally coated, extreme environment FLEX I/O products help to reduce panel costs and the need for additional heating/cooling equipment, resulting in lower installation and maintenance costs.


Benefits


Product Design

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FLEX I/O modules offer 4 through 32 I/O each. You can plug together a maximum of eight I/O modules into a FLEX I/O assembly, for a maximum of 256 I/O per assembly. The I/O modules are interfaced to the I/O link through an I/O adapter module with a built-in 24V DC input power supply. The I/O modules receive power from the adapter/power-supply through the backplane. Two 120/230V AC-to-24V DC power supplies are also available for powering the adapter/power-supply.

The backplane is formed by modular terminal bases that also provide terminal connection points for I/O wiring. I/O circuitry is packaged in separate I/O modules. Each I/O module plugs into an individual terminal base. The I/O adapter module plugs into the end terminal base. You snap the I/O adapter and the terminal bases onto a DIN rail and plug them together. FLEX I/O assemblies can be mounted horizontally or vertically.

The FLEX I/O family consists of modular components that snap together and mount onto a DIN rail to form the FLEX I/O assembly:



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Extreme Environment Distributed I/O

Rockwell Automation extreme environment FLEX I/O operates over a broad temperature spectrum, -20 ºC to 70 ºC. It is ANSI/ISA2, IEC and EMC- compliant, making it ideal for caustic or extreme environment applications.

Communication

A FLEX I/O adapter module interfaces FLEX I/O modules to an I/O scanner port across a communication network. The FLEX I/O adapter module contains a built-in power supply that converts 24V DC to 5V DC for the backplane to power the FLEX I/O modules. FLEX I/O adapter modules are available for EtherNet/IP (single- or dual-port), ControlNet (single media or redundant), DeviceNet, Universal Remote I/O, PROFIBUS DP, and other networks (through our Encompass Referenced Products program).

Typical Configurations

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ControlNet Communication

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DeviceNet Communication

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Universal Remote I/O Communication

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Specifications

General Specifications

Enclosure Type Rating None (open-style)
Mounting Type DIN-rail, Panel
Operating Temperature 0…55 °C (32…131 °F)
-20…70 °C (-4…158 °F)‡ 
Nonoperating Temperature -40…85 °C (-40…185 °F)
Relative Humidity 5…95% noncondensing
Operating Shock⋆  30 g
Nonoperating Shock⋆  50 g
Vibration⋆  5 g at 10…500 Hz
⋆ To maintain these specifications, you must use DIN rail locks.
‡ XT (extreme environment) models.

Certifications⋆ 

UL Listed Industrial Control Equipment
UL Listed for Class I, Division 2 Groups A, B, C, D Hazardous Locations
CE Marked for all applicable directives
CE / ATEX
CSA Certified Process Control Equipment for Class I, Division 2 Group A, B, C, D Hazardous Locations
C-Tick Marked for all applicable acts
Marine Certification
SIL 2 Certification
ODVA
ControlNet
⋆ When product is marked. See the Product Certification link at www.ab.com for declarations of Conformity, Certificates, and other certification details.

Dimensions and Weights

Cat. No. Dimensions (HxWxD), Approx. Weight
I/O Modules 46 x 94 x 53 mm (1.8 x 3.7 x 2.1 in) 0.1 kg (0.3 lb)
I/O Adapters§  87 x 68 x 69 mm (3.4 x 2.7 x 2.7 in) 0.2 kg (0.4 lb)⋆ 
Terminal Bases 94 x 94 x 69 mm (3.7 x 3.7 x 2.7 in)‡  0.2 kg (0.5 lb)
Extender Cables
1794-CE1 0.3 m (1 ft) 0.2 kg (0.5 lb)
1794-CE3 0.9 m (3 ft) 0.2 kg (0.5 lb)
Power Supplies
1794-PS13 87 x 68 x 69 mm (3.4 x 2.7 x 2.7 in) 0.2 kg (0.5 lb)
1794-PS3 87 x 94 x 69 mm (3.4 x 3.7 x 2.7 in) 0.4 kg (0.8 lb)
⋆ 1794-FLA: 0.3 kg (0.6 lb).
‡ With module installed in base.
§ 1794-AENT, 1794-ACN15, and 1794-ACNR15 adapters have the following dimensions: 87 x 94 x 69 mm (3.4 x 3.7 x 2.7 in).

Conformal Coated Products

FLEX I/O conformal coated products meet or exceed the following standards:

ANSI / ISA-S71.04-1985, Class G1, G2, and G3 environments
CEI IEC 6065A-4 Class 1 and 2 environments
UL 746E

I/O Communication Adapters

A FLEX I/O adapter module interfaces FLEX I/O modules to an I/O scanner port across a communication network. The FLEX I/O adapter module contains a built-in power supply that converts 24V DC to 5V DC for the backplane to power the FLEX I/O modules. One adapter communicates with up to eight I/O modules, allowing connection to 256 digital input/output points, or 64 analog input points/32 analog output points, or a mix to meet your needs. Redundant media versions of standard modules have the letter R in the catalog number. Extreme environment versions have the letters XT in the last position of the catalog number, before the series designation. Conformal coated versions of have the letter K in this position.

EtherNet, ControlNet, and DeviceNet Adapters

  1794-AENT 1794-AENTR § ,
1794-AENTRXT § ⋆ 
1794-ACN15,
1794-ACN15K‡ ,
1794-ACNR15 § ,
1794-ACNR15XT § ⋆ 
1794-ADN,
1794-ADNK‡ 
Network EtherNet/IP Dual-Port EtherNet/IP ControlNet DeviceNet
I/O Module Capacity 8
Communication Rate 10/100 Mbps 5 Mbps 125 Kbps
250 Kbps
500 Kbps
Thermal Dissipation, Max. 24.9 BTU/hr at 24.0V DC 24.2 BTU/hr at 19.2V DC 15.7 BTU/hr at 19.2V DC 26 BTU/hr at 19.2V DC
Power Dissipation, Max. 7.3 W at 19.2V DC 7.1 W at 19.2V DC 3.4 W at 19.2V DC 7.6 W at 19.2V DC
Power Supply 24V Current Load (mA) 440 mA 400 mA 400 mA 400 mA
Power Supply Input Voltage, Nom. 24V DC
Operating Voltage Range 19.2…31.2V DC (includes 5% AC ripple)
§ Redundant media versions of EtherNet/IP and ControlNet adaptors.
⋆ XT = Extreme environment version.
‡ K = Conformal Coated.

Universal Remote I/O, Profibus DP, and Local I/O Adapters

  1794-ASB,
1794-ASBK‡ ,
1794-ASBLT♣ 
1794-ASB2,
1794-ASB2K‡ 
1794-APB 1794-APBDPV1 1794-FLA § 
Network Universal Remote I/O PROFIBUS DP Local I/O to a FlexLogix controller
I/O Module Capacity 8 2 8 8 8
Communication Rate 57.6 Kbps
115.2 Kbps
230.4 Kbps
All rates up to 12.0 Mbps
Thermal Dissipation, Max. 1.7 BTU/hr at 31.2V DC 26 BTU/hr at 19.2V DC 25.6 BTU/hr at 19.2V DC
Power Dissipation, Max. 4.6 W 7.68 W at 19.2V DC 4.2 W at 19.2V DC
Power Supply 24V Current Load (mA) 330 mA 330 mA 330 mA 309 mA
Power Supply Input Voltage, Nom. 24V DC
Operating Voltage Range 19.2…31.2V DC (includes 5% AC ripple)
‡ K = Conformal Coated.
♣ Use the 1794-ASBLT Series D adapter when communicating with Classic PLC-5/15 or PLC-5/25 via Remote I/O. The 1794-ASBLT Series D adapter is a replacement for the 1794-ASB Series D adapter only when communicating with PLC-5/15 or PLC-5/25.
§ The 1794-FLA is an extended local adapter for a FlexLogix controller.

DeviceNet Straight 5-pin Open Plug to 5-pin Micro Male Connector

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The DeviceNet straight 5-pin open plug to 5-pin micro male connector can be used in place of the 5-position open style plugs for DeviceNet, making it easier to connect I/O modules to the network, as well as reducing potential for miswiring and saving wiring time.

The DeviceNet straight 5-pin open plug to 5-pin micro male connector is compatible with:


Cat. No. Description
1799-DNC5MMS Female Open-style DeviceNet Y Adapter (Qty. 5)
1799-DNC100MMS DeviceNet straight 5-pin open plug to 5-pin micro male connector (Qty. 100)

Digital I/O Modules

The FLEX I/O module plugs into the terminal base, connecting to the I/O bus and field devices. Since there is no direct wiring to the I/O module, you can remove and insert modules under power, enabling you to change modules without disturbing field wiring, other I/O modules, or system power. This eliminates costly downtime and the inefficiencies of restarting a system.

Features


FLEX Digital AC Input Modules

Cat. No.♠  Number of Inputs Voltage, On-State Input, Nom. Voltage, On-State Input, Min. Voltage, Off-State Input, Max. Current, Off-State Input, Max. Default Input Filter Time Power Dissipation, Max. Terminal Base Unit
1794-IA8
1794-IA8
120V AC 65V AC 43V AC 2.9 mA Off to On: 8.4 ms
On to Off: 26.4 ms
4.5 W at 132V AC 1794-TBN, 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBKD
1794-IA8I 8  Isolated
1794-IA16 16  120V AC 74V AC 20V AC 2.9 mA Off to On: 7.5 ms
On to Off: 26.5 ms
6.4 W at 132V AC 1794-TB3, 1794-TB3S, 1794-TBN⋆ 
1794-IM8 220V AC 159V AC 40V AC 2.6 mA 4.7 W at 264V AC 1794-TBN
1794-IM16 16 240V AC 159V AC 40V AC 2.6 mA 6 W at 264V AC 1794-TBN
♠ Catalog numbers ending with (K) = Conformal Coated.
⋆ Auxiliary terminal strips are required when using the 1794-TBN for the 1794-IA16.
§ Off to On filter is selectable for 8.4, 8.6, 9, 10, 12, 16, 24, or 40 ms.
♣ On to Off filter is selectable for 26.4, 26.6, 27, 28, 30, 34, 42, or 58 ms.
∆ Off to On filter is selectable for 7.5, 8, 9, 10, 12, 16, 24.5, or 42 ms.
♦ On to Off filter is selectable for 26.5, 27, 28, 29, 31, 35, 44, or 60.5 ms.

FLEX Digital AC Output Modules

Cat. No.♠  Number of Outputs Voltage, On-State Output, Nom.♣  Voltage Range, On-State Output♣  Current per Output, Max. Current per Module, Max. Power Dissipation, Max. Terminal Base Unit
1794-OA8
1794-OA8K
120V AC 85V AC…132V AC 500 mA at 55 °C∆ 
(5 mA min)
4.0 A (8 outputs at 500 mA) 4.1 W at 0.5 A
6.3 W at 0.75 A
6.3 W at 1.0 A
1794-TBNF, 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN, 1794-TBKD
1794-OA16 16  120V AC 85V AC…132V AC 500 mA at 55 °C
(5 mA min)
4.0 A (16 outputs at 250 mA) 4.7 W at 0.5 A 1794-TB3, 1794-TB2, 1794-TB3S, 1794-TBN, 1794-TBKD⋆ 
1794-OM8 220V AC 159V AC…264V AC 500 mA at 55 °C500 mA @ 55°C
(5 mA min)
4.0 A (8 outputs at 500 mA) 5 W at 0.5 A 1794-TBNF, 1794-TBN
1794-OM16 16  240V AC 159V AC…264V AC 500 mA at 55 °C♦ 
(50 mA min)
4.0 A 6 W at 264V AC 1794-TBNF, 1794-TBN
♠ Catalog numbers ending with (K) = Conformal Coated.
♣ The external AC supply voltage must be capable of a 50 A surge for 1/2 cycle at power-up.
∆ 750 mA per output @ 35 °C. 1.0 A on 4 nonadjacent outputs and 500 mA on the remaining 4 outputs @ 30 °C.
♦ If using 500 mA outputs, alternate wiring so that no two 500 mA outputs are next to each other.⋆ Auxiliary terminal strips are required when using the 1794-TBN for the 1794-OA16.

FLEX Digital DC Input Modules

Cat. No.♠  Number of Inputs Voltage, On-State Input, Nom. Voltage Range, On-State Input Current, Off-State Input Power Dissipation, Max. Terminal Base Unit
1794-IG16 16  TTL 0V -0.2V DC0.8V DC 4.1 mA at 5V DC (3.7 mA nom) max 1.4 W at 5.5V DC 1794-TB3, 1794-TB3S
1794-IB8 8 current sinking 24V DC 10V DC…31.2V DC 1.5 mA min 3.5 W at 31.2V DC 1794-TB3, 1794-TB3S
1794-IB16 16 current sinking 24V DC 10V DC…31.2V DC 1.5 mA min 6.1 W at 31.2V DC 1794-TB3, 1794-TB3S
1794-IB16XT 2 W at 31.2V DC 1794-TB3, -TB3S, TB3SK
1794-IB16D 10V DC…31.2V DC 8.5 W at 31.2V DC 1794-TB32, 1794-TB32S
1794-IV16 16 current sourcing 24V DC 10V DC…31.2V DC 1.5 mA min 5.7 W at 31.2V DC 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBK
1794-IB32 32 current sinking (2 groups of 16) 24V DC 19.2V DC…31.2V DC 1.5 mA min 6.0 W at 31.2V DC 1794-TB32, 1794-TB32S
1794-IV32 32 current sourcing (2 groups of 16) 24V DC 19.2V DC31.2V DC 1.5 mA min 6.0 W at 31.2V DC 1794-TB32, 1794-TB32S
1794-IC16 16 current sinking 48V DC 30V DC…60V DC 1.5 mA min 6.4 W at 60V DC 1794-TB3, 1794-TB3S
1794-IH16 16 current sinking 125V DC 90V DC146V DC 0.8 mA min 6 W at 146V DC 1794-TB3, 1794-TB3S
♠ Catalog numbers ending in: (K) = Conformal Coated, (D) = includes diagnostics, (XT) = extreme environment.

FLEX Digital DC Output Modules

Cat. No.♠  Number of Outputs Voltage, On-State Output, Nom. Voltage Range, On-State Output Current, On-State Output, Max. Output Delay Time, Max. Power Dissipation, Max. Terminal Base Unit
1794-OG16 16  TTL 0 0V DC0.4V DC 24.0 mA per channel Off to On: 0.25 ms
On to Off: 0.5 ms
0.8 W at 5.5V DC 1794-TB3, 1794-TB3S
1794-OB8 8  current sourcing 24V DC 10V DC…31.2V DC 500 mA per channel, 4.0 A per module Off to On: 0.5 ms
On to Off: 1.0 ms
3.3 W at 31.2V DC 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBKD
1794-OB8EP
1794-OB8EPK
8  current sourcing 24V DC 19.2V DC…31.2V DC 2.0 A per channel, 10.0 A per module Off to On: 0.1 ms
On to Off: 0.1 ms
5.5 W at 31.2V DC 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN, 1794-TBKD
1794-OB8EPXT 2.0 A per channel Off to On: 0.5 ms
On to Off: 1.0 ms
5 W at 31.2V DC 1794-TB2, -TB3, -TB3S, -TBN
1794-OB16 16  current sourcing 24V DC 10V DC…31.2V DC 500 mA per channel, 8.0 A per module Off to On: 0.5 ms
On to Off: 1.0 ms
5.3 W at 31.2V DC 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBKD
1794-OB16D Off to On: 0.1 ms
On to Off: 0.1 msOff to On: 0.1 ms
On to Off: 0.1 ms
4.8 W at 31.2V DC 1794-TB3, 1794-TB3S, 1794-TBKD
1794-OB16P
1794-OB16PK
16  current sourcing 24V DC 10V DC…31.2V DC 500 mA per channel, 8.0 A per module Off to On: 0.5 ms
On to Off: 1.0 ms
5.0 W at 31.2V DC 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBKD
1794-OB16PXT 1794-TB2, -TB3, -TB3S
1794-OB32P 32  current sourcing (2 groups of 16) 24V DC 10V DC…31.2V DC 500 mA per channel;
14.0 A per module⋆ 
Off to On: 0.5 ms
On to Off: 1.0 ms
5.3 W at 31.2V DC 1794-TB32, 1794-TB32S
1794-OV16 16  current sinking 24V DC 10V DC…31.2V DC 500 mA per channel, 8 A per module Off to On: 0.5 ms
On to Off: 1.0 ms
4.2W at 31.2V DC 1794-TB3, 1794-TB3S
1794-OV16P
1794-OV32 32  current sinking (2 groups of 16) 24V DC 10V DC31.2V DC 500 mA Off to On: 0.5 ms
On to Off: 1.0 ms
4.4 W at 31.2V DC 1794-TB32, 1794-TB32S
1794-OC16 16  current sourcing 48V DC 30V DC…60V DC @ 45 °C
55V DC @ 55 °C
500 mA per channel, 8 A per module Off to On: 0.5 ms
On to Off: 1.0 ms @ 25 °C; 2.0 ms @ 55 °C
3.7 W at 60V DC 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBKD
♠ Catalog Numbers ending with: (K) = Conformal Coated, (P) = Protected Outputs, (EP) = Electronic Fused, (D) = Diagnostic, (XT) = extreme environment.
⋆ 6.0 A total for channels 0…15; 8.0 A total for channels 16…31.

24V DC External Power - FLEX Digital DC Output Modules

Cat. No. External DC Supply Voltage Range External DC Supply Current Range
1794-OB8 10…31.2V DC (5% AC ripple) 10…35 mA
1794-OB8EP
1794-OB8EPK
19.2…31.2V DC (5% AC ripple) 20…35 mA
1794-OB8EPXT 19.2…31.2V DC (5% AC ripple) 55 mA
1794-OB16 10…31.2V DC (5% AC ripple) 20…65 mA
1794-OB16D 10…31.2V DC (5% AC ripple) 56…78 mA
1794-OB16P
1794-OB16PK
10…31.2V DC (5% AC ripple) 25…75 mA
1794-OB16PXT 10…31.2V DC 35 mA
1794-OB32P 10…31.2V DC (5% AC ripple) 103…273 mA
1794-OV16 10…31.2V DC (5% AC ripple) 20…65 mA
1794-OV16P 10…31.2V DC (5% AC ripple) 20…65 mA
1794-OV32 10...31.2V DC (5% AC ripple) 50 mA
1794-OC16 30…60V DC (5% AC ripple) 13…27 mA
  

FLEX Digital DC Combination Input/Output Modules

Cat. No.♠  Voltage, On-State, Nom. Voltage, On-State, Range Inputs Outputs Power Dissipation, Max. Terminal Base Unit♣ 
Number of Inputs Default Input Delay Time‡  Current, Off-State Input, Max. Number of Outputs Output Delay Time♣  Output Currenty, Max.
1794-IB10XOB6 24V DC 10V DC…31.2V DC 10  current sinking Off to On: 0.25 ms§ 
On to Off: 0.25 ms§ 
1.5 mA 6 current sourcing OFF to ON:
0.5 ms
ON to OFF:
1.0 ms
2 A per output
10 A per module
6.0 W at 31.2V DC 1794-TB3, 1794-TB3S
1794-IB10XOB6XT 1794-TB2, 1794-TB3, -TB3S, -TB3SK
1794-IB16XOB16P 16  current sinking 16 current sourcing 0.5 A per output
8 A per module
7.0 W at 31.2V DC 1794-TB32, TB32S
♠ Catalog numbers ending with (P) = Protected Outputs, (XT) = extreme environment.
‡ Input On to Off delay is the time from the input signal dropping below the valid level to recognition by the module. Input Off to On delay time is the time from a valid input signal to recognition by the module.
§ 0.25 ms (default), 0.5 ms, 1 ms, 2 ms, 4 ms, 8 ms, 16 ms, 32 ms. Selectable using configuration word 3. (Not selectable when used with the 1794-ASB adapter.)
♣ Output Off to On or On to Off delay is the time from the module issuing an output on or off until the output actually turns on or off.

24V DC External Power - FLEX Digital DC Combination Modules

Cat. No. External DC Supply Voltage Range External DC Supply Current Range
1794-IB10XOB6 10…31.2V DC (includes 5% AC ripple) 8 mA at 10V DC
15 mA at 19.2V DC
19 mA at 24V DC
25 mA at 31.2V DC
1794-IB10XOB6XT
1794-IB16XOB16P 10…31.2V DC (includes 5% AC ripple) 78 mA at 10V DC
  

FLEX Digital Contact Output Modules

The 1794-OW8 module provides 8 isolated Form A (normally open) contacts capable of switching up to 2.0 A at up to 230V AC and 125V DC. Load power can be obtained from a variety of sources and can range from +5V DC to 240V AC.

Cat. No.♠  Number of Outputs Relay Contact Rating Output Delay Time, Max. Power Dissipation, Max. External DC Supply Current Range Terminal Base Unit
1794-OW8
1794-OW8K
8  Isolated N.O. relay contact 250V AC, 2 A, 50/60 Hz, Resistive;
120/240V AC, 50/60 Hz, 1800 VA Make, 180 VA Break;
5…30V DC, 2 A, Resistive;
R150, 5...30V DC, 28 VA not to exceed 1 A below 28V DC
Off to On: 10 ms⋆ 
On to Off: 10 ms‡ 
5.5 W 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN and 1794-TBNF
1794-OW8XT
♠ Catalog Numbers ending with: (K) = Conformal Coated, (XT) = extreme environment.
⋆ Time from valid output on signal to relay energization by module.
‡ Time from valid output off signal to relay deenergization by module.

Analog, Thermocouple, and RTD I/O Modules


FLEX Analog Input Modules


Cat. No.♠  Number of Inputs Signal Range Input Conversion Rate Input Resolution Absolute Accuracy Step Response to 63% of FS External DC Supply Current, Nom. Power Dissipation, Max. Terminal Base Unit
1794-IE8
1794-IE8K∆ 
8 single-ended inputs 4…20 mA
0…20 mA
±10V
0…10V
256 ms all channels 12 bits - Unipolar, 11 bits + sign - Bipolar
5.13 mA/Cnt
2.56 mV/Cnt - Unipolar
5.13 mV/Cnt - Bipolar
Current Input: 0.20% Full Scale at 25 °C
Voltage Input: 0.20% Full Scale at 25 °C⋆ 
Current Input: 18.2 ms
Voltage Input: 9.4 ms
60 mA at 24V DC 3.0 W at 31.2V DC 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS
1794-IE8XT 1794-TB2, -TB3, -TB3S, -TB3T, -TB3TS
1794-IF4I 4 Isolated inputs 4…20 mA
0…20 mA
±20 mA
±10V
0…10V
±5V
0…5V
2.5/5.0/7.5 ms all channels 16 bits - Unipolar, 15 bits + sign - Bipolar
0.320 mA/Cnt - Unipolar
0.640 mA/Cnt - Bipolar
0.156 mV/Cnt - Unipolar
0.313 mV/Cnt - Bipolar
Current Input: 0.1% Full Scale at 25 °C
Voltage Input: 0.1% Full Scale at 25 °C⋆ 
Current or Voltage Input:
1200 Hz conversion rate = 0.6 ms
600 Hz conversion rate = 6.7 ms
300 Hz conversion rate = 13.4 ms
150 Hz conversion rate = 26.7 ms
80 mA at 24V DC 2.0 W at 31.2V DC 1794-TB2, 1794-TB 3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, 1794-TBN
1794-IF4IXT
1794-IF4ICFXT
1794-IE12 12 single-ended Non-isolated inputs 4…20 mA (user configurable)
0…20 mA (user configurable)
8.0 ms all channels 320 mV/cnt
0.641 mA/cnt
Current Input: 0.1% Full Scale at 25 °C
Voltage Input: 0.1% Full Scale at 25 °C⋆ 
Current or Voltage Input: 1.3 s (0.09 s with Quick Step) 30 mA at 24V DC; 45 mA at 10.0V DC 1.2 W at 31.2V DC; 1.1 W at 24V DC; 0.9 W at 10.0V DC 1794-TB3G or 1794-TB3GS
♠ Catalog numbers ending in (K) = Conformal Coated, (XT) = extreme environment.
∆ Each module's channel is individually selectable.
⋆ Includes offset, gain, non-linearity, and repeatability error terms.

FLEX Thermocouple and RTD Input Modules

Cat. No.♠  Number of Inputs Input Signal Range Input Resolution External DC Supply Current, Nom. Power Dissipation, Max. Terminal Base Unit
1794-IR8 8  RTD, Strain Gauge 1…433 W 16 bits across 435 W 140 mA at 24V DC 3 W at 31.2V DC 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, 1794-TBKD
The 1794-IR8 is a temperature-measuring module that accepts 2-, 3-, and 4-wire RTDs. Use the 1794-IR8 in applications where channel fast-update rate is not required. If you need channel fast-update rates, use the 1794-IRT8 module.
1794-IRT8
1794-IRT8K
1794-IRT8XT
8  RTD, Thermocouple, Millivolt, Strain Gauge -40…100 mV DC for thermocouples
0…325 mV for RTDs
14 bits 95 mA at 24V DC 3.0 W at 31.2V DC 1794-TB3G, 1794-TB3GS, 1794-TB3GK
The 1794-IRT8 and -IRT8K (conformal coated version) are high-speed, high-accuracy temperature/mV measuring module that accepts thermocouple inputs, 2-, 3-, and 4-wire RTD inputs, and mV source inputs. The 1794-IRT8 also offers wire-off, over-range, and under-range detection. Use cold-junction compensators (1794-CJC2) in thermocouple mode. Two cold-junction compensators are shipped with the these modules.
The 1794-IRT8XT is the extreme environment version, rated for operation at temperatures of -20…70 °C (-4…158 °F).
1794-IT8 8  Thermocouple, Millivolt ±76.5 mV 16 bits (2.384 mV typical) 150 mA at 24V DC 3 W at 31.2V DC 1794-TB3T, 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3TS
The 1794-IT8 is a temperature/mV measuring module that accepts inputs from a variety of thermocouples and from the mV source in the range of ±76.5 mV. Use cold-junction compensators (1794-CJC2) in thermocouple mode. Two cold-junction compensators are shipped with the 1794-IT8.
♠ Catalog numbers ending in (K) = Conformal Coated, (XT) = extreme environment.

Thermocouple and RTD Modules—Sensors Supported

1794-IR8 1794-IRT8K, 1794-IRT8XT 1794-IT8
RTD
Resistance:
100 W Pt m = 0.00385 Euro (-200…+870 °C)
100 W Pt m = 0.003916 U.S. (-200…+630 °C)
200 W Pt m = 0.00385 Euro (-200…+630 °C)
500 W Pt m = 0.00385 U.S. (-200…+630 °C)
100 W Nickel m = 0.00618 (-60…+250 °C)
120 W Nickel m = 0.00672 (-60…+250 °C)
200 W Nickel m = 0.00618 (-60…+250 °C)
500 W Nickel m = 0.00618 (-60…+250 °C)
10 W Copper m = 0.00427 (-200…+260 °C)
Resistance:
100 W Pt m = 0.00385 Euro (-200…+870 °C)
100 W Pt m = 0.003916 U.S. (-200…+630 °C)
200 W Pt m = 0.00385 Euro (-200…+400 °C)
200 W Pt m = 0.003916 U.S. (-200…+400 °C)
100 W Nickel m = 0.00618 (-60…+250 °C)
120 W Nickel m = 0.00672 (-80…+320 °C)
200 W Nickel m = 0.00618 (-60…+200 °C)
10 W Copper m = 0.00427 (-200…+260 °C)
Thermocouple
Type B: 300…1800 °C (572…3272 °F)
Type E: -270…1000 °C (-454…1832 °F)
Type J: -210…1200 °C (-346…2192 °F)
Type K: -270…1372 °C (-454…2502 °F)
Type TXK/XK (L):-200…800 °C (-328…1472 °F)
Type N: -270…1300 °C (-454…2372 °F)
Type R: -50…1768 °C (-58…3214 °F)
Type S: -50…1768 °C (-58…3214 °F)
Type T: -270…400 °C (-454…752 °F)
Type B: 300…1800 °C (572…3272 °F)
Type C: 0…2315 °C (32…4199 °F)
Type E: -270…1000 °C (-454…1832 °F)
Type J: -210…1200 °C (-346…2192 °F)
Type K: -270…1372 °C (-454…2502 °F)
Type N: -270…1300 °C (-454…2372 °F)
Type R: -50…1768 °C (-58…3214 °F)
Type S: -50…1768 °C (-58…3214 °F)
Type T: -270…400 °C (-454…752 °F)
Type TXK/XK (L): -200…800 °C (-328…1472 °F)
 

FLEX Analog Combination I/O Modules


Cat. No.♠  Number of Inputs/Outputs Signal Range Conversion Rate Input Resolution Absolute Accuracy Step Response to 63% of FS External DC Supply Current, Nom. Power Dissipation, Max. Terminal Base Unit
1794-IE4XOE2 4 inputs/2 single-ended  outputs 4…20 mA
0…20 mA
±10V
0…10V
Inputs: 256 ms all channels
Outputs: 1.024 ms all channels
12 bits - Unipolar, 11 bits + sign - Bipolar
5.13 mA/Cnt
2.56 mV/Cnt - Unipolar
5.13 mV/Cnt - Bipolar
Current Input: 0.20% Full Scale at 25 °C
Voltage Input: 0.20% Full Scale at 25 °C
Current Output: 0.425% Full Scale at 25 °C
Voltage Output: 0.133% Full Scale at 25 °C⋆ 
Current Input: 18.2 ms
Voltage Input: 9.4 ms
70 mA @ 24V DC 4.0 W at 31.2V DC 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS
1794-IE4XOE2XT Inputs: 256 ms all channels 164 mA @ 10.5V DC 1794-TB2, -TB3, -TB3S, -TB3T, -TB3TS
1794-IE8XOE4 8 single-ended inputs/ outputs 4…20 mA (user configurable)
0…20 mA (user configurable)
Inputs: 8.0 ms all channels
Outputs: DAC
320 mV/cnt
0.641 mΑ/cnt
Current Input or Output: 0.1% Full Scale at 25 °C
Voltage Input or Output: 0.1% Full Scale at 25 °C⋆ 
Current or Voltage Input: 1.3 s (0.09 s with Quick Step) 140 mA at 24V DC; 280 mA at 10.0V DC 3.0 W at 31.2V DC; 2.3 W at 24V DC; 2.0 W at 10.0V DC 1794-TB3G or 1794-TB3GS
1794-IF2XOF2I 2 isolated inputs/2 outputs 4…20 mA
0…20 mA
±20 mA
±10V
0…10V
±5V
0…5V
Inputs: 2.5/5.0/7.5 ms all channels
Outputs: 2.5/5.0 ms
16 bits - unipolar; 15 bits plus sign - bipolar
0.156 mV/cnt unipolar; 0313 mV/cnt bipolar
0.320 mA/cnt unipolar; 0.640 mA/cnt bipolar
Current Terminal: 0.1% Full Scale at 25 °C
Voltage Terminal: 0.1% Full Scale at 25 °C
Current or Voltage Terminal:
1200 Hz conversion rate = 0.6 ms
600 Hz conversion rate = 6.7 ms
300 Hz conversion rate = 13.4 ms
150 Hz conversion rate = 26.7 ms
150 mA at 24V DC 3.3 W at 31.2V DC 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, and 1794-TBN
1794-IF2XOF2IXT Current Terminal: 0.1% Full Scale at 25 °C
Voltage Terminalt: 0.1% Full Scale at 25 °C
2.0 W at 31.2V DC 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, and 1794-TBN
♠ Catalog numbers ending in: (XT) = extreme environment.
⋆ Includes offset, gain, non-linearity, and repeatability error terms.

FLEX Analog Output Modules


Cat. No.♠  Number of Outputs Signal Range Output Conversion Rate Output Resolution Absolute Accuracy Step Response to 63% of FS, Output External DC Supply Current, Nom. Power Dissipation, Max. Terminal Base Unit
1794-OE4
1794-OE4K
4 single-ended outputs 4…20 mA
0…20 mA
±10V
0…10V
1.024 ms all channels 12 bits + sign
5.13 mA/Cnt
2.56 mV/Cnt
Current Output: 0.425% Full Scale at 25 °C
Voltage Output: 0.133% Full Scale at 25 °C
Voltage Output: 24 ms 70 mA at 24V DC⋆  4.5 W at 31.2V DC 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, 1794-TBN
1794-OE4XT 4 single-ended outputs 4…20 mA
0…20 mA
±10V
0…10V
12 bits + sign
0.156 mV/cnt
0.320 mΑ/cnt
Voltage terminal - 0.133% Full Scale at 25 °C
Current terminal - 0.425% Full Scale at 25 °C
24 ms 180 mA at 10.5V DC 4.5 W at 31.2V DC 1794-TB2, -TB3, -TB3S, -TB3T, -TB3TS, and -TBN
1794-OE12 12 single-ended outputs 4…20 mA
0…20 mA
320 mV/cnt
0.641 mΑ/cnt
Current Output: 0.1% Full Scale at 25 °C
Voltage Output: 0.1% Full Scale at 25 °C
~70% 1st convert; 96% 2nd convert; 100% 3rd convert 320 mA at 24V DC
720 mA at 10.0V DC
4.0 W at 31.2V DC; 4.3 W at 24V DC; 4.0 W at 10.0V DC 1794-TB3G or 1794-TB3GS
1794-OF4I 4 Isolated outputs 4…20 mA
0…20 mA
±10V
0…10V
±5V
0…5V
2.5/5.0 ms 15 bits + sign
0.656 mA/Cnt
0.320 mV/Cnt
Current Output: 0.1% Full Scale at 25 °C
Voltage Output: 0.1% Full Scale at 25 °C
Current or Voltage Output: < 25 ms 210 mA at 24V DC 4.7 W at 31.2V DC 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, 1794-TBN
1794-OF4IXT 2.0 W at 31.2V DC 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, and 1794-TBN
♠ Catalog numbers ending in (K) = Conformal Coated, (XT) = extreme environment.
⋆ Not including outputs.

Specialty I/O Modules

Conformal coated versions of standard modules have the letter K in the last position of the catalog number, before the series designation. Extreme environment versions have the letters XT in the last position of the catalog number.

FLEX Counter I/O Modules

Cat. No. Number of Inputs/Outputs Input Frequency, Max. External DC Supply Current, Nom. Power Dissipation, Max. Terminal Base Unit
1794-IJ2
1794-IJ2K
1794-IJ2XT
• Inputs: 2 groups of 1 frequency input and 1 gate input
• Outputs: 2 outputs
1…32 kHz w/sine wave; 1…32 kHz w/square wave input 180 mA at 24V DC 4.6 W at 31.2V DC 1794-TB3G, 1794-TB3GS
The 24V DC 2 Input Frequency Module performs high-speed frequency algorithms and is capable of reporting frequency, acceleration, and direction. The frequency inputs are capable of accepting frequencies up to 32 kHz. Input devices range from magnetic pickup to flowmeters, to incremental encoders to proximity detectors. The module accepts and returns binary data. Outputs are activated by alarms. Module power is supplied from the external power supply. All power for input devices (24V DC) is supplied by the I/O module.
1794-VHSC∆  • Inputs: 2 groups of A/A, B/B, and Z/Z pairs with 5V DC or 15…24V DC terminations
• Outputs: 2 groups of 2
1.0 MHz counter and encoder X1 (no filters)
500 kHz encoder X2 (no filters)
250 kHz encoder X4 (no filters)
100 mA at 24V DC 5 W at 31.2V DC 1794-TB3G, 1794-TB3GS
The 24V DC 2 Channel Very High Speed Counter Module has two incremental quadrature encoder interfaces each with three inputs (A, B, and Z). Each input module has ±inputs for connection to pulse transmitters with complementary or non-complementary signals. The counter can count pulses of one or two pulse trains for up/down counting and detection of a selectable number of edges (X1, X2, X4). Each of the two counters has an upper limit of 1MHz, a 24-bit counter register, a preset register, and a latch register. Module power is supplied from an external 24V power supply. The 1794-VHSC has two outputs that can be configured for overlapping, multiple windows, and/or pulse width modulation. Use with 1794-ACN15 or 1794-ACNR15 Series B or later ControlNet adapters or 1794-AENT EtherNet/IP adapter.
1794-ID2 • Inputs: 2  (2 groups of A, B, Z, G inputs) 100 kHz 150 mA at 12V DC
75 mA at 24V DC
5 W at 26.4V DC 1794-TB3, 1794-TB3S, 1794-TBN, 1794-TBNF⋆ 
The 24V DC 2 Input Pulse Counter Module performs high-speed scaling, calculation operations for various industrial applications including quantity counting, speed calculation, and flow monitoring. All input devices for the pulse counter module should be able to provide the input signal of 6V amplitude.
1794-IP4 • Inputs: 4  (2 groups of 2) 100 kHz 150 mA at 12V DC
75 mA at 24V DC
5 W at 26.4V DC 1794-TB3, 1794-TB3S, 1794-TBN, 1794-TBNF⋆ 
The 12/24V DC 4 Input Pulse Counter Module performs high-speed scaling, calculation operations for various industrial applications. Typical applications include quantity counting, speed calculation, and flow monitoring. All the input devices for the pulse counter module should be able to provide the input signal of 6V amplitude. The 1794-IP4 has a 6V minimum threshold for an input On condition and a maximum 3V threshold for an input Off condition. The region between 3V and 6V is a transitional one and therefore requires input signals to pass cleanly through that region, otherwise module operation cannot be guaranteed.
∆ As of FlexLogix firmware revision 11, you can install the 1794-VHSC module (and any other module that uses extended data transfers) on the local or extended-local DIN rails of a FlexLogix system. Previous revisions of the controller firmware support these modules only as remote ControlNet I/O.
⋆ Auxiliary terminal strips are required when using the 1794-TBN or 1794-TBNF for this catalog number.

SCANport Communication Module

The SCANport Communication Module interfaces two SCANport communication ports to the backplane. Each port can interface a SCANport-enabled drive or power product through an I/O adapter module to a ControlNet, DeviceNet, or Universal Remote I/O link. SCANport communication provides data for logic command/feedback, analog reference/feedback, and channel enable/status.

SCANport-enabled products include: 1305 AC Drives, 1336 PLUS AC Drives, 1336 PLUS II AC Drives, 1336 IMPACT AC Drives, 1336 FORCE AC Drives, 1336 SPIDER AC Drives, 1336 REGEN package, 1397 DC Drives, 1557 Medium Voltage AC Drives, 1394 Motion Systems, SMC Dialog Plus, SMP Smart Motor Protector, and 2364 Regenerative DC Bus Supply Unit.


Cat. No. Communication Ports Input Voltage Rating Power Consumption Terminal Base
1203-FM1 2 SCANport⋆  5V supplied from flexbus 0.8 W 1203-FB1

The 1203-FM1 SCANport module may require up to twice the adapter power supply current of standard FLEX I/O modules. When installing FLEX I/O modules, a maximum of four 1203-FM1 modules can be used with any FLEX I/O adapter.

Determining the Number of 1203 and Standard Modules in a System
If you are using this number of standard (1794) modules: Then, the maximum number of 1203 modules that you can use is: The number of SCANport connections provided is:
7 or 8 0 0
5 or 6 1 2
3 or 4 2 4
1 or 2 3 6
0 4 8
  

SCANport Terminal Base and Cables

For each port, you also need to select a cable kit.

Cat. No. Description Length
1203-FB1 Terminal Base
1202-C03 0.33 Meters (1.1 Feet) 0.3 m
1202-C10 1 Meter (3.3 Feet) 1 m
1202-C30 3 Meter (9.8 Feet) 3 m
1202-C90 9 Meter (29.5 Feet) 9 m
  

HART Smart Instrumentation

HART (Highway Addressable Remote Transmitter) is an open protocol designed to connect analog devices. For HART connectivity, select from products available from Rockwell Automation and our Encompass partners.

Select a HART Interface

For Your Application Select Description
  • Analog and HART in one module

  • Instrumentation in hazardous locations (FLEX Ex modules)

  • Supports FDT-compatible asset management software to HART devices using provided DTMs

  • HART commands can be transmitted as unscheduled messages
  • 1794 FLEX I/O
    1797 FLEX Ex I/O
    FLEX I/O and FLEX Ex modules designed for distributed HART systems.
  • Analog and HART connectivity in one module

  • No external hardware required to access HART signal

  • HART commands can be transmitted as unscheduled messages

  • Supports asset management software to HART device
  • 1756-IF8H
    1756-OF8H
    Rockwell Automation analog I/O modules for use in ControlLogix chassis
  • Data acquisition or control application with slow update requirements (such as a tank farm)

  • No external hardware required to access HART signal

  • Does not connect directly to asset management software
  • MVI56-HART Prosoft interface
      

    HART Interface Modules

    FLEX and FLEX Ex HART analog modules are ideal for use in applications that need connection with FDT (Field Device Tool) compatible asset management software, such as the Rockwell Software FieldCare HART Communication bundle or Endress + Hauser Fieldcare. For HART Device Type Management (DTM) programs and drivers, go to http://www.ab.com/io/downloads.html and select HART DTM files.


    HART Analog Input Module

    Cat. No. Number of Inputs Signal Range Input Conversion Rate Input Resolution Absolute Accuracy Step Response to 99% External DC Supply Current, Nom. Power Dissipation, Max. Terminal Base Unit
    1794-IE8H 8 single-ended Non-isolated 4…20 mA 10 ms (50 Hz) / 8.33 ms (60 Hz) 16 bits 0.1% Full Scale at 20 °C (68 °F) 80 ms (current terminal) 190 mA at 24V DC 3.9 W at 31.2V DC 1794-TB3G or 1794-TB3GS
    1794-IF8IH 8 single-ended Isolated 4…20 mA (user configurable)
    0…20 mA (user configurable)
    16 bits - unipolar; 15 bits + sign - bipolar
    0.320 mA/cnt unipolar; 0.640 mA/cnt bipolar
    0.1% Full Scale at 25 °C 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
    190 mA at 24V DC 4.8 W at 31.2V DC 1794-TB3 or 1794-TB3S
      

    HART Analog Output Module

    Cat. No. Number of Outputs Signal Range Output Conversion Rate Output Resolution Absolute Accuracy Step Response to 99% External DC Supply Current, Nom. Power Dissipation, Max. Terminal Base Unit
    1794-OE8H 8 single-ended Non-isolated 4…20 mA
    0…20 mA
    10 ms for all channels 13 bits 0.1% Full Scale at 20 °C (68 °F) 13 ms to 99% of FS / 115 ms during HART comms 190 mA at 24V DC 6.1 W at 31.2V DC 1794-TB3G or 1794-TB3GS
    1794-OF8IH 8 single-ended Isolated 4…20 mA (user configurable)
    0…20 mA (user configurable)
    10 ms 16 bits - unipolar
    0.305 mA/cnt unipolar
    ± 0.1% Full Scale at 25 °C
    ± 0.35% Full Scale at 0…55 °C
    450 mA at 24V DC 5.0 W at 31.2V DC 1794-TB3 or 1794-TB3S
      

    Terminal Bases and Accessories

    Click to enlarge - 1794FlexTermBase_GS


    Conformal coated versions of standard modules have the letter K in the last position of the catalog number, before the series designation.

    Terminal Bases

    Each FLEX I/O module requires a terminal base unit that snaps onto the DIN rail to the right of the I/O adapter. The terminal bases provide terminal connection points for I/O wiring and plug together to form the backplane. They are available with screw or spring terminations.

    Cat. No.♠  Termination Type Connections Used in Applications
    1794-TB2 Cage-clamp 16 I/O; 18 common; 2 +V Up to 132V AC/156V DC
    1794-TB3
    1794-TB3K
    Cage-clamp 16 I/O; 18 common; 18 +V Up to 132V AC/156V DC
    1794-TB3S Spring-clamp
    1794-TB3SK
    1794-TB32 Cage-clamp 32 I/O; 8 common; 8 +V Up to 31.2V DC
    1794-TB32S Spring-clamp
    1794-TB3G
    1794-TB3TK
    Cage-clamp 36 I/O; 2 common; 2 +V; 10 chassis ground Up to 31.2V DC
    1794-TB3GS Spring-clamp
    1794-TB3GSK
    1794-TB3T
    1794-TB3TK
    Cage-clamp 16 I/O; 10 common; 4 +V; 8 chassis ground; 2 sets of CJC to be used with temperature modules Up to 132V AC/156V DC
    1794-TB3TS Spring-clamp
    1794-TB3TSK
    1794-TBN Screw-clamp 16 I/O; 2 common; 2 +V 264V AC/DC
    1794-TBNK
    1794-TBNF
    1794-TBKD Cage-clamp with 16 knife disconnects 16 I/O; 18 common; 2 +V Up to 132V AC/156V DC
    ♠ Catalog numbers ending with (K) = Conformal Coated.

    D-shell Terminal Bases

    Cat. No. Termination Type Description Current Capacity, Max.
    1794-TB37DS D-shell 37 Pin D-Shell Termination (digital and analog modules) 5 A per pin
    10 A per module
    1794-TB62DS D-shell 62-pin D-Shell Termination (32-point I/O modules) V2 - 8 A
    V1 - 8 A
    5 A per pin
    10 A per module
      

    1794 FLEX Distribution Boards

    Click to enlarge - Flex_IO_Ter Block w conn _BW


    The distribution boards mount on the terminal base and provide multiple input/output ports. By using the distribution boards, you can use individual wiring for each of the channels.

    Cat. No. Description Connectors
    1794-TB37EXD4VM8 FLEX I/O 37-pin Distribution Board for Analog Voltage Modules 4 M8
    1794-TB37EXD4CM8 FLEX I/O 37-pin Distribution Board for Analog Current Modules 4 M8
    1794-TB62EXD4X15 FLEX I/O 62-pin Distribution Board for 32-bit Modules 4 D-15
      

    1794 FLEX Extender Cables

    Use the optional 1794-CE1 (0.3 m, 1ft) or 1794-CE3 (0.9 m, 3ft) extender cable to arrange your system in two rows or split your system into horizontal and vertical orientation. The cable can be used between any module or adapter.

    Cat. No. Description
    1794-CE1 FLEX I/O 1 ft Extender Cable (0.3 m)
    1794-CE3 FLEX I/O 3 ft Extender Cable (0.9 m)
      

    Click to enlarge - 1794CE1CE3FLEXSys_BW


    Accessory Products

    Cat. No. Description
    1794-NM1 FLEX I/O Panel Mounting Kit Use this kit to mount your FLEX I/O system on a panel without a DIN rail.
    1794-LBL FLEX I/O Label Kit Use this kit to tailor the label on you FLEX I/O terminal base unit. Kit includes a diecut drawing and label sheet with five labels.
    1492-EA5 DIN rail locks Use DIN rail locks for FLEX I/O modules in a high-vibration installation, particularly when mounting the modules vertically.
    1794-N2 FLEX Dummy Filler Module - Slot Cover Use this module to fill a vacant slot, if desired.
    1794-CJC2 Cold Junction Compensation Kit (2 Pieces) Use these as replacements for CJCs supplied with 1794-IT8 and 1794-IRT8.
      

    Power Supplies

    The I/O modules are interfaced to the I/O link through an I/O adapter module with a built-in 24V DC input power supply. The I/O modules receive power from the adapter/power supply through the backplane. The 120V AC to 24V DC power supply (1794-PS13 or 1794-PS3) is also available for powering the adapter/power supply. (When providing power for the 1794-FLA extended-local I/O FlexLogix adapter, treat the adapter as a communication adapter, not as an I/O module.)

    Cat. No. Power Supply Input Voltage, Nom. Power Supply Input Power Apparent Input Power, Max. Transformer Load, Max. Output Current, Max. Output Voltage, Nom.
    1794-PS3 120V/220V AC 86 W 205VA 250VA 3.0 A⋆  24V DC
    1794-PS13 120V/220V AC 36 W 53VA 90VA 1.3 A 24V DC
    ⋆ Horizontal mount; 2.8 A all other mounting.

    Power Requirements and Transformer Sizing

    These graphs display backplane power load.


    Click to enlarge - 1794-PS3Charts_BW

    Encompass Partner Products

    Click to enlarge - Encompass_Program


    Encompass referenced products for 1794 FLEX I/O Platform

    Through Encompass, our third-party product referencing program, you can quickly locate the products that best solve your application challenges. Use the Encompass search tool to sort and filter products from best-in-industry suppliers in your region that can provide connectivity to the Rockwell Automation architecture, or are used in conjunction with our products.