OMRON C200H-MR833 – Memory Cassette Module | C200H Series PLC Platform
Engineering Background: The OMRON C200H series represents one of OMRON’s most widely deployed mid-range PLC platforms in industrial automation. Introduced as a modular, rack-based control system, the C200H architecture supports a broad ecosystem of I/O, communication, and memory expansion modules — making it a backbone controller across discrete manufacturing, process control, and machine automation environments worldwide.
Product Positioning: The C200H-MR833 is a Memory Cassette Module designed for program storage and data retention in C200H/C200HS/C200HE/C200HG/C200HX CPU units. It provides non-volatile memory expansion, enabling engineers to store ladder programs, data tables, and system parameters externally — critical for field maintenance, program backup, and rapid CPU replacement without re-programming.
Complete Technical Specifications
| Part Number / SKU | C200H-MR833 |
| Manufacturer | OMRON Corporation |
| Series / Platform | C200H / C200HS / C200HE / C200HG / C200HX |
| Module Type | Memory Cassette (RAM with Battery Backup) |
| Memory Capacity | 32K words (program + data) |
| Memory Type | Battery-backed RAM |
| Compatible CPUs | C200H-CPU01/02/03/11/21/23/31, C200HS-CPU01/03/21/23/31, C200HE/HG/HX CPU units |
| Interface | Direct cassette slot insertion (CPU front panel) |
| Power Supply | Supplied via CPU backplane (no external power required) |
| Battery Life | Approx. 5 years at 25°C (battery replacement required for long-term retention) |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -20°C to +75°C |
| Humidity | 10% to 90% RH (non-condensing) |
| Weight | Approx. 1,340 g (packaged) |
| Compliance | CE, UL, cUL |
| Country of Origin | Japan |
Proven Application Environments
- Discrete Manufacturing: Automotive assembly lines, stamping presses, and conveyor control systems using C200H CPUs requiring program backup cassettes.
- Process Control: Chemical dosing, water treatment, and HVAC control panels where non-volatile program storage is mandatory for safety compliance.
- Machine OEM: Packaging machinery, injection molding machines, and textile equipment where field technicians need rapid CPU swap capability.
- Maintenance & Retrofit: Replacement memory cassettes for aging C200H installations to extend operational life without full PLC migration.
- Spare Parts Inventory: Stocked by MRO departments and system integrators as critical spares for C200H-based production lines.
Engineering Advantages
- Non-Volatile Program Retention: Battery-backed RAM ensures program and data integrity during power outages — no re-programming required after power loss.
- Rapid CPU Replacement: Cassette-based architecture allows engineers to transfer programs to a replacement CPU in minutes, minimizing production downtime.
- Broad CPU Compatibility: Single cassette supports the full C200H/HS/HE/HG/HX CPU family, reducing spare parts complexity for multi-line facilities.
- Plug-and-Play Installation: No tools required — direct front-panel cassette insertion with mechanical keying to prevent incorrect orientation.
- Proven Field Reliability: Deployed in thousands of C200H installations globally with a documented service life exceeding 10 years in controlled environments.
System Architecture & Signal Flow
The C200H-MR833 interfaces directly with the C200H CPU via the front-panel memory cassette slot. Upon power-up, the CPU automatically detects the cassette and loads the stored program into internal execution memory. Data flow is bidirectional — the CPU writes updated data tables and program changes to the cassette in real time, while the battery maintains memory state during power-off intervals.
In a typical C200H rack configuration: Power Supply Unit → CPU Unit (with C200H-MR833 installed) → I/O Backplane → I/O Modules → Field Devices. The memory cassette operates transparently within this architecture, requiring no additional wiring or configuration beyond physical installation.
Sourcing & Quality Verification
- OEM Authenticity: All C200H-MR833 units sourced by Konmask.com are verified against OMRON’s original part markings, date codes, and label specifications.
- Functional Testing: Units undergo power-on verification and memory read/write cycle testing prior to shipment.
- Condition Grading: Available in New (factory-sealed), Refurbished (tested & certified), and Used (inspected) grades — specify your requirement at inquiry.
- Traceability: Batch records and inspection reports available upon request for quality-critical procurement.
- Packaging: Anti-static ESD packaging with moisture barrier for international shipment.
Procurement Process
- Submit Inquiry: Contact us via email at support@konmask.com or WhatsApp/Tel: +0086 19859288691 with your required quantity and delivery timeline.
- Quotation: Receive a formal quotation within 1 business day including unit price, lead time, and shipping options (DHL / FedEx / sea freight).
- Order Confirmation: Confirm purchase order; 30% deposit required for orders above USD 500.
- Quality Inspection: Pre-shipment inspection report issued; photos and test data provided upon request.
- Shipment & Tracking: Real-time tracking number provided; typical transit time 3–7 business days (express) or 15–30 days (sea freight).
- After-Sales Support: 12-month warranty on new units; technical support available for integration queries.
Technical FAQ
Q: Is the C200H-MR833 compatible with C200HX CPUs?
A: Yes. The MR833 cassette is compatible with the full C200H/HS/HE/HG/HX CPU family. Always verify your specific CPU model against OMRON’s compatibility matrix before ordering.
Q: What happens if the battery in the MR833 is depleted?
A: Memory contents will be lost upon power removal. The battery must be replaced (OMRON part: 3G2A9-BAT08) before the unit can reliably retain programs. Konmask.com can supply replacement batteries.
Q: Can I use the MR833 to transfer programs between two C200H CPUs?
A: Yes. The cassette can be written in one CPU and read by another compatible CPU, making it an effective program transfer and backup medium.
Q: Do you provide OMRON certificates of conformance?
A: For new factory-sealed units, original OMRON CoC documentation is available. For refurbished units, Konmask.com issues its own inspection certificate.
Q: What is the minimum order quantity (MOQ)?
A: MOQ is 1 piece. Volume pricing is available for orders of 5 units or more.
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Contact: support@konmask.com | +0086 19859288691
