HC900 CPU Module 900C53-0020 | Honeywell Controller Series

Honeywell 900C53-0020 HC900 I/O Scanner

The Honeywell 900C53‑0020 is a high-performance CPU module designed for HC900 Hybrid Controller systems. It provides centralized control, communication, and data processing for industrial processes across oil & gas, chemical, power, food & beverage, and water treatment industries. Moreover, this modular processor ensures reliable system operation with redundancy support and advanced diagnostics for uninterrupted performance.

Compact and robust, the 900C53‑0020 supports multiple I/O modules, including analog, digital, and specialty modules, providing a scalable solution for complex industrial automation needs. In addition, dual Ethernet ports and support for multiple communication protocols simplify integration into existing control architectures.

Technical Specifications

• Model / Part Number: 900C53‑0020

• Series: Honeywell ControlEdge HC900 Hybrid Controller

• Type: CPU / Controller Module

• Memory: 16 MB RAM, 32 MB Flash 

• I/O Capacity: Supports up to 4 racks, approximately 4000 I/O points

• Communication Ports: Dual Ethernet ports (10/100 Mbps), RS‑485 serial port

• Protocols Supported: Modbus TCP/IP, Modbus RTU, peer-to-peer HC900 protocol

• Scan Rate: Configurable, typically 25 ms to 250 ms

• Redundancy: CPU redundancy supported with hot-standby configuration

• Diagnostics: Built-in self-diagnostics, watchdog timer, LED indicators

• Operating Voltage: 24 VDC 

• Dimensions: 127 × 51 × 178 mm

• Weight: 0.45 kg

• Operating Temperature: –20 °C to +60 °C

• Humidity Range: 5% – 95% non-condensing

• Certifications: CE, UL, CSA, IECEx

• Origin: USA

FAQ

Q1: What is the primary function of the 900C53‑0020?
It provides centralized control, communication, and data processing for HC900 I/O modules.

Q2: How many I/O points does it support?
It supports up to 4000 I/O points across 4 racks, depending on module configuration.

Q3: Which communication protocols are supported?
Modbus TCP/IP, Modbus RTU, and peer-to-peer HC900 protocols are supported.

Q4: Does it support redundancy?
Yes, the CPU supports hot-standby redundancy for continuous operation.

Q5: Can it operate in harsh industrial environments?
Yes, it operates from –20 °C to +60 °C and tolerates 5–95% non-condensing humidity.