Description

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Technical Specifications

• Brand: Honeywell
• Model: 90088-A-9001
• Warranty: One Year
• Condition: 100% New & Original
• Processor: 32-bit PowerPC 603e RISC, 400MHz
• Memory: 256MB DDR SDRAM, 2MB Flash memory
• Power Supply: 24 VDC ±10%, typical power consumption ≤7W
• Communication: Ethernet, RS232, RS485
• Max I/O Points: Up to 128 I/O expansion points
• Operating Temp: -40°C ~ +70°C
• Humidity: 5%–95% non-condensing
• Weight: 0.45 kg
• Compatibility: Honeywell legacy control rack system
• Coating: Conformal coated PCB
• Features: Dual redundant support, hardware watchdog, real-time clock, hot-swappable
• Certifications: UL, cUL, CE
• Indicators: Front LEDs for power, run, fault status

3. Product Overview

The 90088-A-9001 is a rack-mounted processor control module for Honeywell industrial control systems. It executes control logic, processes analog and discrete I/O signals, and manages communication with remote I/O subsystems and host SCADA/DCS. It supports redundant configuration to achieve bumpless switchover during hardware failure, avoiding interruption of continuous control. Built-in hardware watchdog and real-time clock support event logging and alarm timestamping. The conformal coating protects the circuit board against moisture and dust in industrial cabinet environments. It is an obsolete spare part for maintenance replacement in oil & gas, chemical, power and petrochemical plants.