AB | 1794-ASB/D | (IN STOCK&READY TO SHIP)

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1794-ASB/D

Brand Name                 AB

Product reference       1794-ASB/D

The Allen-Bradley 1794-ASB is an old adapter module which is part of the flex I/O series. It supports 8 different modes of addressing where the main ones are complementary, complimentary 32, compact 32, and standard 32. Each mode allows the processor to receive different levels of information.This adapter works with a very low voltage, so you should use a protected extra low voltage (PLEV) or a safety extra-low voltage (SELV) module to power it. 

This unit needs an input voltage of up to 24V DC nominal where its input voltage rate goes from 19.2-31.2V DC and it includes a 5% AC ripple. The communication rate supported by this product is 57.6kbps, 115.2kbps, and 230.4kbps.

The 1794-ASB is equipped with 3 indicator lights which include green for an active adapter and red for a local fault as well as an adaptor fault. The flexbus output current is 640 mA at maximum when the isolation voltage is 500V AC between the user power and the flexbus. The maximum consumption of power is 450 mA from a constant 24V DC power input. 

The maximum power dissipation by the Allen-Bradley 1794-ASB is 4.6 W at 31.2V DC and the thermal dissipation is 15.7 BTU/hr at 31.2V DC.

The 1794-ASB’s compact size makes it easy for the user to carry and use it. Its dimensions are 4" x 2" x 4" approximately and the weight of this unit is only 6oz.

The Allen-Bradley 1794-ASB is an obsolete Adapter Module is part of the FLEX I/O series. Although the 1794-ASB is discontinued, we continue to sell replacement 1794-ASB modules.

1794-ASB connects FLEX I/O modules to I/O scanner ports via a communication network. The 1794-ASB has a built-in power supply which converts 24V DC to 5V DC for the backplane in order to power the FLEX I/O modules.

The 1794-ASB adapter can also join an existing system or replace a previous unit. It also functions well with Allen Bradley PLC 3 and 5 series. Additionally, the Series E 1794-ASB can recognize the safe state data for the FLEX Integra analog modules, and it is capable of using thirty-two point FLEX I/O units. The user must use a 1794-ASB Series D or later module when utilizing the FLEX Integral analog modules in the configuration of your setup.  This unit can communicate with the 1747-SN via Remote I/O communications and RSLogix 500 software.

The 1794-ASB is an Obsolete Flex I/O adapter that is made by Allen Bradley. This unit is DIN Rail Mountable and can work with up to 8 I/O Modules. Specifications:

FAQ

Question: How many I/O Modules can a 1794-ASB communicate with?

Answer: One of the Allen Bradley 1794-ASB adapters can communicate with up to 8 FLEX I/O modules. This module powers the internal logic for up to 8 I-O Flex modules.

Question: Is the 1794-ASB an active module?

Answer: No, this unit is obsolete/discontinued however we currently have replacement 1794-ASB available.

Question: What series of 1794-ASB are there?

Answer: There are Series A, B, C, D, and Series E adapter modules.

Question: What is the 1794-ASB communication rate?

Answer: The 1794-ASB communication rates are 57.6 Kbps, 115.2 Kpbs, and 230.4 Kpbs.

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