Catalogs > Automation Systems Catalog > I/O > In-Cabinet Distributed I/O > 1794 FLEX I/O
1794 FLEX I/O
| Introduction |  |
Product Design | |
Typical Configurations | |
Specifications | |
I/O Communication Adapters | |
Digital I/O Modules | |
| Analog, Thermocouple, and RTD I/O Modules | |
Specialty I/O Modules | |
HART Smart Instrumentation | |
Terminal Bases and Accessories | |
Power Supplies | |
Encompass Partner Products | |
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‡ |
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| 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 |
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| 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. |
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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. |
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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:
- 1734D POINTBlock I/O
- 1790 CompactBlock LDX I/O
- 1791D CompactBlock I/O
- 1794-ADN FLEX I/O DeviceNet adapter
- 1799 Embedded I/O
| 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) |