A-B 1794-ASB

The A-B 1794-ASB is a Flex I/O communications adapter from Allen-Bradley/Rockwell Automation.The following is a detailed introduction to A-B 1794-ASB:

1.Product Overview

Brand and Manufacturer:Allen-Bradley/Rockwell Automation

Model:1794-ASB

Type:Flex I/O Communication Adapter

2.Technical Specifications

Installation:DIN rail mounting device

Communication Port:1 remote I/O(RIO)communication port for connecting the Flex I/O rack to a controller that supports RIO

Communication Rate:Supports 57.6Kbps,115.2Kbps and 230.4kbps

Input Voltage:Required to be 19.231.2VDC(some say 11.031.2VDC,nominal voltage is 24VDC)

Number of Supported Modules:Supports installation of up to 8(some say 4)Flex I/O module

Flexible bus output current:640mA maximum

Isolation voltage:500VAC between user power supply and flexible bus

Power consumption:330mA at 24V(some say 450mA or 6.31W);730mA at 12V(some say 7.31 BTU/hour)

Maximum power dissipation:4.6W(some say also includes heat dissipation 15.7 BTU/hr)

Operating temperature:32 to 131°F(approximately 0 to 55°C)

Operating humidity:5%to 95%,non-condensing

A-B 1794-ASB

III.Product features

Compatibility:Compatible with Allen-Bradley traditional controllers(such as PLC2,PLC3,PLC5 controllers and SLC500 automation platform),and can also be used for modern Logix controller platforms and third-party devices

Data transmission:Send and receive data to the controller through block transfer read(BTR)and block transfer write(BTW)instructions,and data packets can be sent simultaneously or sequentially according to the required speed

Indicator:Has built-in status indicators such as power indicator,adapter activity indicator,adapter fault indicator and local fault indicator

Protection:The module has an open housing and needs to be installed in an appropriate housing to protect the device from industrial components and pollutants

IV.Application field

A-B 1794-ASB controller module is widely used in industrial automation systems,such as production line control,process control,mechanical control,etc.It is usually used to realize data exchange and communication between PLC and external devices to achieve monitoring and control of production processes.

A-B 1794-ASB

5.Advantages

High reliability:able to operate stably for a long time in various industrial environments

Stability:meet various communication needs

Flexibility:flexible configuration options to adapt to different application needs

Easy installation:simple installation and configuration can reduce the user’s operating costs

The company mainly imports PLC modules,programmable controllers,servo control systems and DCS spare parts,such as:ABB,AB(Rockwell),GE(General Electric),Bentley,Honeywell Er),Emerson.),Motorola,Invensys,Westinghouse,etc.The company has established close cooperative relations with many world-renowned PLC and DCS product maintenance service providers.We can purchase goods directly from abroad and provide equipment and spare parts from different countries and manufacturers.

We supply goods directly from abroad,without intermediaries,reducing the cost of use.

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