Slave Input with AS-i Safety ABB

This professional ABB safe input slave is used with the AS-I bus, comes with 1 safety input for dynamic sensors and is available with several non-safe outputs.

Actuator/Sensor Interface (AS-I)

AS-I is a method for providing communication to simple components such as an inductive sensor or a switch valve through a simple two-wire network to a control device like a PLC or PC.

A unique feature of the AS-I system is the flat, two-core cable (code ) designed to allow for quick and easy connection, ensuring correct polarity every time. The cable can be used in a network up to 100 m (300 m if repeaters are used).

By offering both power and data through the same cable, it significantly reduces the time normally used to connect sensors and actuators, thus providing savings in cable requirements and labor hours.

The choice of AS-I connection modules allows the user to connect standard actuators/sensors to the BUS with all the advantages of using dedicated sensors/actuators. It also serves to increase the number of I/O nodes available to the user by using addressable splitters. The connection modules are available in a variety of enclosures and can accommodate up to 4 inputs and 4 outputs. This allows for connecting up to 124 inputs and 124 outputs to a single AS-I network.

Another characteristic of the AS-I system is the method by which sensors or modules communicate with the host. The design of the communication protocol ensures high data accuracy and error detection capabilities, making the ASI system ideal for automation in noisy and industrial environments.

Advantages of AS-I

• Replaces rigid wiring
• High data speed
• Low installation cost
• Intelligent diagnostics
• Easy to learn and install
• Very flexible
• Can be connected to other field bus systems
• Easy to handle
• Pre-assembly and testing outside the facility
• Simple maintenance
• Faster commissioning on site
• Capable of using standard actuators and sensors (using modules)