AB 1771-ASB/E Universal Remote I/O Adapter

1771-ASB/E Info.

Manufacturer: Rockwell Automation

Brand: Allen-Bradley

Part Number/Catalog No.: 1771-ASB

Module Type: I/O Adapter Module

Product Family: SLC 500

Port: Universal Remote I/O Adapter

Product Type: RIO Adapter Module

Rate of Communication: 57.6 kbit/second, 115 kbit/second, 230 kbit/second

Connectors: Wiring Arm 1771-WB

Programming software: RSLogix5 software

Backplane Current (at 5 Volts): 1.0 Amps

Communication Port: Remote I/O (RIO)

Operating Temperature: 32°F to 140°F (0°C to 60°C)

Cable: Belden 9463

Mounting: In-Chassis

Storage Temperature: -40°F to +185°F (-40°C to +85°C)

Backplane Current: 1 mA at 5V dc

Lower Connector Keying: 16 to 18

Noise Immunity: NEMA standard ICS 2-230

Humidity: 5% to 95% non-condensing

Number of connections: 32

Weight: 1.9 pounds (0.9 kilograms)

Certifications: UL Listed, CSA certified, Class I, Division 2 Groups A, B, C, D, CE compliant for all applicable directives, Marine Certified, C-tick marked for all applicable acts

Dimensions: 3.5 x 6.5 x 2.0 inches (89 x 165 x 51 millimeters)

1771-ASB/E Description

The Allen-Bradley 1771-ASB Remote I/O Adapter Module physically resides in a Universal I/O Chassis, and acts as a slave in an Allen Bradley subnet in an EPICS control system.

The 1771-ASB Remote I/O Adapters are linked via subnet connection to other Remote I/O Adapters in Allen Bradley 1771 Series I/O Chassis, Allen-Bradley RediPANEL Pushbutton Modules, and back to a VMEbus I/O scanner.

They correspond to the ADAPTER number when configuring an Allen-Bradley subnet. An Allen-Bradley / EPICS subnet allows for up to 8 adapters to be located on one Allen-Bradley subnet link.

The remote I/O adapter module serves as an interface between remote I/O modules and programmable controllers.

The remote I/O adapter:

- transmits data up to 10,000 cable-feet (at 57.6K baud)

- provides faster backplane scanning and data transmission up 2500 cable-feet at 230.4K baud

- receives/sends data from/to the I/O scanner in serial form

- reads/writes data from/to the input modules in parallel form

- reads/writes data from/to the output modules in parallel form

- supports any mix of I/O (4, 6, 8, 16, or 32 points)

- supports three methods of I/O addressing; 1/2-slot, 1-slot, and 2-slot

- checks I/O configuration on power-up to verify I/O module placement

- scans all slots in the chassis, or all but the last four slots, allowing improved scan time and I/O image space savings.

Slot power supplies can be used in the last quarter of the rack without using I/O space.

- can emulate series B adapters, providing system response similar to the 1771-ASB series B.

This allows the use of 1771-S4A and -S4B scanners which require a slower response for proper operation.

The remote I/O adapter module is one of many hardware components that make up a programmable controller system.

There are three steps involved in the configuration of a 1771-ASB Remote I/O Adapter Module, the first involves the setting of the Module Configuration Plug or Plugs, the second involves the setting of the Module Switches, and the third involves the setting of the Universal I/O Chassis backplane switches located on the left hand, the lower side of the backplane as you look into the chassis.

Note that there are two styles of Remote I/O Adapter, they are easily discerned by looking at SW 2. In the older style module, SW 2 is a 4 position DIP switch, in the newer style, SW 2 is a 6 position DIP switch.

Highly Recommend