Overview

The 57C443A is a Scanner Interface Module (SIM) for the AutoMax PLC / DCS 5000 systems. It enables communication between the AutoMax CPU and legacy or specialized remote I/O racks that use a proprietary "scanner" protocol. The module translates data between the high-speed AutoMax backplane and older remote I/O links, allowing new controllers to integrate with existing field devices without costly rewiring or replacement. The “A” revision denotes a specific hardware/firmware version.

This module is essential for brownfield upgrades, enabling seamless operation across both new and legacy systems.

Technical Data

Typical Applications: Legacy System Integration

The 57C443A is used in industrial facilities where existing remote I/O hardware must remain operational while upgrading central controllers to the AutoMax platform. Examples include:

• Power generation plants – Integrating legacy sensor and actuator racks with a modern AutoMax CPU

• Metal processing or rolling mills – Connecting geographically dispersed I/O without replacing field devices

• Specialized older devices – Interfacing non-standard I/O not compatible with AutoMax standard modules like the 57C416

By performing protocol translation on-board, the 57C443A reduces integration costs and preserves operational continuity.

Frequently Asked Questions (FAQ)

Q1: How does the 57C443A differ from the 57C416 Remote I/O Module?
A: The 57C416 communicates with standard AutoMax Remote I/O racks, whereas the 57C443A specifically supports older proprietary "Scanner" I/O networks.

Q2: How does it simplify system integration?
A: It eliminates the need to replace or rewire existing legacy I/O racks. The module transparently translates the scanner protocol to AutoMax-compatible data.

Q3: Is the communication network high-speed?
A: It is high-speed relative to the era but may be slower than the AutoMax backplane. The module’s on-board processor ensures reliable synchronous serial communication.

Q4: How does the CPU access I/O points connected via the 57C443A?
A: The module maps scanner network I/O data into a dedicated register block in the AutoMax common memory, allowing the CPU to access remote points as if they were local.