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Product Introduction
The Honeywell 900C32-0021 is a powerful HC900 C30 Controller CPU module, part of Honeywell’s acclaimed HC900 Hybrid Controller Series. This model is engineered for mid-sized process control, providing a robust and flexible control solution ideal for both batch and continuous process applications. Featuring a 32-loop capacity, integrated Ethernet ports, and support for both Modbus and peer-to-peer communications, this CPU provides high performance, reliability, and integration with SCADA or DCS systems.
With its embedded control functions, the 900C32-0021 can handle complex process logic, sequencing, and safety interlocks with ease, making it a preferred choice for applications in pharmaceuticals, food and beverage, chemical processing, water treatment, and more.
Technical Specifications
| Parameter | Description |
|---|---|
| Model Number | 900C32-0021 |
| Series | HC900 Hybrid Controller |
| CPU Type | C30 Controller CPU |
| Loop Capacity | 32 Control Loops |
| Communication Ports | 1x Ethernet, 1x RS485, 1x RS232 |
| Protocol Support | Modbus RTU/ASCII, Modbus TCP/IP, Peer-to-peer |
| Power Supply | 24 VDC |
| Program Memory | 4 MB Flash |
| Scan Rate | 100 ms typical |
| Real-Time Clock | Yes |
| Mounting Type | DIN Rail Mount |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5% to 95% non-condensing |
| Dimensions (H x W x D) | 110 x 50 x 125 mm |
| Weight | 0.32 kg |
| Certifications | CE, UL, cUL, CSA, RoHS |
| Configuration Software | Hybrid Control Designer (HCD) |
| Redundancy Support | Optional, via dual CPU architecture |
Applications
The Honeywell 900C32-0021 HC900 C30 Controller CPU is utilized in a wide variety of industries due to its modularity, flexibility, and reliability. Its typical applications include:
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Pharmaceuticals and Life Sciences – precise batch control, recipe management, and data logging
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Food and Beverage – temperature control, fermentation processes, and CIP systems
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Water and Wastewater Treatment – pH control, filtration, and pump sequencing
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Chemical Processing – reactor control, blending systems, and safety interlocks
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Pulp and Paper Industry – drying section control and batch digester monitoring
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OEM Skid Builders – packaged solutions needing scalable and compact control logic
Advantages
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High Loop Capacity: Supports up to 32 PID loops, ideal for medium-scale systems.
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Ethernet and Serial Connectivity: Enables seamless integration into SCADA, HMI, or DCS environments.
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Modular Design: Easily expandable with I/O modules, making it future-proof for scaling.
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Flexible Programming: Hybrid Control Designer software provides function block programming and IEC 61131-3 support.
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Advanced Diagnostics: Built-in system monitoring and event logging improve troubleshooting and maintenance.
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Data Integrity: Flash-based memory and real-time clock enable secure data storage and time-stamped events.
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Redundancy Options: Optional CPU redundancy increases system reliability in mission-critical environments.
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Compact Footprint: Saves space in control panels with its DIN rail mount and compact housing.
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Regulatory Compliance: Meets global standards for safety, emissions, and reliability.
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Long Lifecycle Support: Honeywell ensures extended support, updates, and backward compatibility.
Frequently Asked Questions (FAQs)
1. What is the main function of the Honeywell 900C32-0021 HC900 C30 Controller CPU?
It is designed to manage up to 32 control loops in process automation applications like temperature, pressure, flow, and level regulation.
2. Can this CPU be used in hazardous environments?
Yes, it complies with industry standards and certifications such as CE, UL, and CSA, making it suitable for harsh industrial environments.
3. Does the 900C32-0021 support redundant CPU configurations?
Yes, redundancy can be achieved through Honeywell’s optional dual CPU configuration to improve reliability.
4. What communication protocols are supported?
It supports Modbus RTU/ASCII, Modbus TCP/IP, and peer-to-peer Ethernet communications.
5. What programming software is required for this controller?
The controller is configured using Honeywell’s Hybrid Control Designer (HCD) software.
6. Is remote monitoring possible with this controller?
Yes, via Ethernet connection and supported protocols, remote diagnostics and configuration can be performed.
7. What are the power requirements?
It operates on a 24 VDC power supply.
8. Can I use it in a temperature-sensitive environment?
Yes, it is rated for an operating range from 0°C to 60°C.
9. What is the mounting type?
The unit is designed for DIN rail mounting, common in industrial control panels.
10. Is this controller suitable for batch processing?
Absolutely. Its function block programming and sequencing capabilities make it well-suited for batch applications.
Related Models from HC900 Series
| Model | Description | Loop Capacity | Dimensions (mm) | Weight |
|---|---|---|---|---|
| 900C50-0101 | HC900 C50 Controller CPU, Standard | 50 Loops | 110 x 50 x 125 | 0.60 kg |
| 900C70-0101 | HC900 C70 High-Capacity Controller | 96 Loops | 110 x 50 x 125 | 0.62 kg |
| 900P01-0101 | HC900 Power Supply Module | N/A | 100 x 45 x 115 | 0.45 kg |
| 900R08-0001 | HC900 8-Slot I/O Rack | N/A | 220 x 100 x 135 | 0.85 kg |
| 900ENI-0101 | Ethernet Interface Module | N/A | 110 x 40 x 120 | 0.50 kg |
| 900CSM-0001 | Control Strategy Module | N/A | 110 x 45 x 125 | 0.52 kg |
Popular Honeywell Models
| Model | Description | Application | Weight |
|---|---|---|---|
| C300 Controller | Process controller for Experion PKS | DCS and large-scale process control | 1.2 kg |
| 51401491-100 | IOTA for MC-TAMR03 Analog Module | Analog signal processing | 0.55 kg |
| CC-PDOB01 | Profibus-DP Output Module | Fieldbus communication | 0.50 kg |
| 51204172-175 | Digital Output Module | General automation | 0.48 kg |
| TC-CCR013 | Compact Controller | Standalone small process control | 0.70 kg |
| MC-TAMR03 | Analog Input Module | Field instrumentation data acquisition | 0.52 kg |
