Allen-Bradley 1771-DB | PLC-5 BASIC Communication Module

Product Description

The Allen-Bradley 1771-DB is a PLC-5 communication module designed to provide BASIC and C programming capabilities within the PLC-5 system architecture. It supports multiple serial communication protocols and integrates with the PLC processor through block-transfer operations. This module is conformally coated for durability and is suitable for industrial environments requiring flexible communication options.

Technical Specifications

• Manufacturer Allen-Bradley

• Product Line PLC-5

• Category PLC Communication Modules

• Part Number 1771-DB

• Weight 1.63 lbs (0.74 kg)

• Module Type Communication Module

• Description PLC BASIC Module

• Communication Protocols RS-232-C, RS-422-A, RS-485, DH-485

• Supported Operations BASIC programs and C programs

• Processor Communication Block-transfer with PLC-5 processor

• Wiring Arm 1771-WN

• Module Scan Time 1.3–5 ms

• Storage Temperature –40 to 185 °F (–40 to 85 °C)

• Protective Coating Conformal coat

Application Scenarios

• Integration of PLC-5 systems with external devices via RS-232, RS-422, or RS-485

• Industrial automation requiring BASIC or C program execution within PLC hardware

• Environments needing conformal-coated modules for extended durability

FAQ

• Q: What programming languages are supported?  A: BASIC and C programs can be executed directly on the module.

• Q: How does the module communicate with the PLC processor?  A: Through block-transfer operations with the PLC-5 processor.

• Q: Which wiring arm is compatible?  A: The 1771-WN wiring arm.