Description

The Honeywell 620-0024 (6200024) is a dedicated memory module designed for Honeywell / ISSC PLC systems. It provides 24 k of non-volatile memory capacity, ensuring reliable storage for controller firmware, configuration parameters, and runtime logic. This module is essential for maintaining system integrity in industrial automation environments, including oil refining, power generation, chemical processing, and heavy manufacturing, where deterministic control and data retention are critical.

Engineered for durability, the unit maintains memory integrity despite exposure to industrial electrical noise and vibration. It integrates directly into the PLC rack backplane, facilitating automatic data retrieval during system boot-up or controller initialization, which helps minimize downtime during maintenance or power-cycle events.

Features

• 24 k non-volatile memory capacity for program and configuration storage.
• Designed for seamless integration with Honeywell / ISSC legacy PLC backplanes.
• Passive memory retention architecture for high reliability.
• Compact plug-in design for efficient rack mounting and field replacement.
• Optimized for consistent data retention across power cycles and fault events.

Applications

This memory module is primarily used in legacy Honeywell / ISSC PLC control systems to support:

• Controller firmware and logic backup.
• System configuration and parameter retention.
• Rapid recovery of control logic during system restarts.

Technical Specifications

Installation Guidelines

• Ensure the PLC rack power is disconnected before inserting or removing the module to prevent electrical damage.
• Handle the module by the edges to avoid electrostatic discharge (ESD) damage to internal components.
• Align the module carefully with the backplane connector slots before applying pressure to seat it.
• Ensure the module is fully seated and secured within the rack to maintain proper electrical contact and vibration resistance.
• Keep the module away from high-EMI sources and ensure the control cabinet provides adequate ventilation to maintain operating temperatures below 60 deg C.

FAQ

Is this module compatible with all Honeywell PLC systems?
The 620-0024 is designed for specific Honeywell / ISSC legacy PLC platforms. Please verify your controller backplane compatibility before installation.

Does this module require external power?
No, the module is powered directly through the PLC backplane connection.

What is the primary function of this module?
It serves as a non-volatile storage medium for PLC program logic and system configuration data, ensuring that critical information is retained during power loss.