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Product Overview
The Honeywell 51454475-100 is a RAM (Random Access Memory) Charger Module, specifically designed for the C300 Process Controller within the Honeywell Experion PKS platform. Its primary function is to maintain power to the C300 controller's volatile memory during a main power supply failure, thereby preserving critical runtime data and ensuring a controlled system restart.
Memory Backup: Provides a dedicated, reliable power source to the C300 controller's RAM, preventing data loss when primary system power is interrupted. This preserves:
1. Process setpoints and variables
2. Controller state information
3. Dynamic control strategy data
4. Sequence and batch execution states
Typical Applications
1. Mission-critical control applications where loss of controller memory during a power glitch is unacceptable (e.g., continuous processes in refining, chemicals, power generation).
2. Batch processes where preserving the exact state of a recipe or sequence is essential for product quality and safety.
3. Any C300 controller installation requiring guaranteed data integrity through short or extended power outages.
Technical Specifications
Part Number: 51454475-100
Function: Supercapacitor-based RAM backup power module
Compatibility: C300 Process Controller
Backup Duration: Designed to retain memory contents for a specified period (consult datasheet for exact duration under defined conditions).
Primary Technology: Electric double-layer capacitor (Supercapacitor).
Honeywell's PLC is part of the ControlEdge family, a next generation family of controllers providing unprecedented connectivity through all levels of process and business operations. The result is optimized operations and maintenance efficiencies that release personnel from manual processes. ControlEdge PLC is one of the first PLCs in the market to achieve Cybersecurity ISA Level 2 certification.
Designed to work with any SCADA system, ControlEdge PLC becomes a superior solution using Experion, leveraging common station hardware and HMI, Lean project execution, faster field device commissioning, and improved device diagnostics.
Embedded OPC UA, DNP3, MQTT, Modbus, PROFINET and EtherNet/IP protocols provide smooth integration to a range of instruments and systems from multiple vendors. Built-in cyber security provides compliance to standards and safety of people, plant, and information at the site. HART-enabled Universal I/O offers redundancy, remote configuration and late design change flexibility for improved project implementation.
Controller Redundancy
Honeywell's redundancy is ready to go. There is no need to program any differently from a non-redundant controller. ControlEdge PLC takes away the complexity. No additional infrastructure is required to synchronize the data between CPMs.
Enhanced Hardware Design
A security cover prevents unauthorized access to the physical mode switch and SD card, and reduces the risk of network cables being accidentally unplugged. It is also transparent for viewing the diagnostic information from LEDs on the CPM. A wide-access I/O door opens out, providing clear access and visibility to the labels and terminal blocks for easy wiring.
Integration with Experion
Through use of open protocols, ControlEdge PLC is designed to work with any SCADA system. When combined with Experion, it becomes a superior solution. Enhanced ControlEdge PLC and Experion integration over OPC UA interface offers built-in PLC diagnostics in the Experion system, an integrated alarm summary, history, trend and reporting for both Experion controllers and ControlEdge PLC-resulting in enhanced user experience with significant cost savings and ease of plant operations.
Auto-configuration of PLC data points provides a significant reduction in the integration effort, easy updates on the Experion Server, and faster project deployment. In addition, OPC UA named variable based mapping eliminates address mapping efforts and errors.
Native Peer to Peer communication between ControlEdge PLC and Experion C300/UoC using CDA eliminates protocol mapping errors and reduces integration time.
When you match an Experion Equipment template with ControlEdge PLC, the cost of configuring the full solution is simplified even further. Experion and ControlEdge PLC have been designed to solve automation requirements in the oil and gas, mining, water and wastewater, food and beverage, pharma, and other process industries.
Integration with Experion Panel PC
The Experion Panel PC (PPC) provides a single HMI across PLC diagnostics and Experion system displays. The touch user interface allows you to operate from the equipment or from the control room easily without learning different systems. It also allows connection of the PLC to the Experion system with less effort, and improved integration with Experion over a secured (encrypted and authenticated) connection using node-to-node IPSec-based security for all protocols. Experion PPC also supports Automatic Point Configuration for PLC.

Overview of Honeywell Experion PKS C300 controller
The Experion PKS C300 controller forms the heart of the Experion control system, and is ideal for implementation across all industries, with best-in-class process control capabilities and security. It supports a wide variety of process control applications, including continuous and batch processes, and integration with smart field devices. The C300 controller also supports advanced process control, as well as custom algorithm blocks that let users create custom code to run in the C300 controller.
What Is It?
The C300 is secure out-of-the-box DCS controller with embedded cybersecurity that supports compliance, reduces risks, and improves availability. It operates Honeywel's deterministic Control Execution Environment (CEE) software which executes control strategies on a constant and predictable schedule and transparently integrates standard and open communication protocols: Ethernet IP, Profinet, FOUNDATION Fieldbus, HART, IEC61850, OPC UA, Profibus° and Modbus, addressing the requirements of a wide range of applications.
What Problems Does It Solve?
The C300 controller provides the means to overcome the increasing complexity of contro! systems, reduce Cyber risks and significantly improves the operational and lifecycle support aspects for control systems, as it offers:
1. Robust and scalable Control Platform for a wide range of control applications addressing the most demanding process control reguirements
2. A new paradigm for process control with IO & Control HIVE enabling maximum flexibility, scalability, standardization, optimization, and resiliency
3. Best-in-class security ensuring safe and secure operations
4. Facilitates modular and parallel project execution
5. Maximized process uptime and minimized maintenance effort with robust diagnostics and innovative redundancy schemes
6. Improved engineering productivity and maintenance using the rich function libraries provided in the intuitive user environment Seamless integration of smart field devices and controllers via standard protocols.
Specifications
Security and Access Control
Device indexing uses odd-even pairing-unit 1 partners with unit 2-set through hardware switches. An embedded firewall is included and the controller carries ISA Secure CSA Level 2 certification.
Processing and Performance
User memory is fixed at 32 768 Memory Units. The system can hold up to 4 095 tagged function blocks. A CC-SCMB05 module preserves data during power loss.
Redundancy and Synchronization
Time references accept NTP, SNTP or PTPv2. Switch-over to the standby CPU completes in roughly 500 ms. Redundant pairs are cabled through a dedicated Ethernet STP link and a separate redundancy IOTA.
Environmental Limits
The controller operates from -40 °C to +70 °C.
I/O and Execution Capacity
The I/O HIVE manages 1 500 parameter references and supports up to 15 CN100 links. Execution is handled by 9 000 Execution Units under Honeywell's Control Execution Environment. Standard scan period is 50 ms; 20 ms is unavailable on PCNT05. SNTP updates every minute, PTP updates every 30 seconds, and full I/O synchronization is achieved within about 240 seconds.
FSC cabinets
FSC systems are generally built into steel cabinet enclosures for mechanical protection of the delicate electronic equipment of the FSC system. Also, compliance with the CE directives requires the FSC systems to be properly enclosed.
FSC main components
An FSC system typically consists of the following main components:
1. cabinet enclosure
2. field termination assemblies (FTAs) and/or terminals
3. central part (CP) racks with all CPU, memory and communication modules
4. input/output racks with all input and output modules
5. power supply system consisting of power supply units (PSUs), main switches and circuit breakers
FSC operating conditions
The operating conditions for FSC systems are as follows:
Storage temperature: -25 °C to +80 °C (-13 °F to +176 °F)
Operating temperature: 0 °C to 60 °C (32 °F to 140 °F)
Relative humidity: 95 % (non-condensing)
Vibration (sinusoidal): excitation sine-shaped with sliding frequency, frequency range 10-150 Hz, loads 10 Hz- 57 Hz: 0.075 mm, 57 Hz-150 Hz: 1 G, number of axes 3 (x, y, z), traverse rate 1 oct/min
Shock: 15 G in 3 axes, shock duration 11 ms
Moore Automation has sold Honeywell for almost 20 years.
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| Q: How can I obtain the most competitive pricing for my order? A: Listed website prices are for reference only. For more accurate quote about 51454475-100 51304903-200 51304907-200 51309206-125 51305072-200, please reach out directly to our sales representative, Felicia Shi. |
| Q: Which shipping options are available for deliveries worldwide? A: We provide multiple logistics solutions, including express carriers (DHL, FedEx, UPS) and sea/air freight. The optimal method can be recommended based on your needs. |
| Q: Do you provide technical documentation for older part replacements? A: Yes, we can often supply datasheets, cross-reference guides, or compatibility information for obsolete components upon request. |
| Q: What types of discontinued industrial parts does your company stock? A: We maintain a dedicated inventory of obsolete and end-of-life industrial components, such as PLC modules, servo drives, controllers, and discontinued parts from major manufacturers. |
| Q: What are the accepted payment terms for international orders? A: We require 100% wire transfer (T/T) payment prior to order processing and shipment. |