- BRAND: MITSUBISHI
- CPU UNIT MODEL
- MELSEC Q
- MODEL: Q01CPU
- MAX: 14Kstep
- 5VDC, 0.27A
- SERIAL: 090914092575033-B
- MITSUBISHI ELECTRIC
- MADE IN JAPAN
The Mitsubishi Q01CPU is a compact, cost-effective, and fundamental Central Processing Unit (CPU) from the highly versatile and modular MELSEC-Q series of Programmable Logic Controllers (PLCs). It is designed as an entry-level solution for small to medium-scale automation applications, providing the core processing power for controlling machinery and industrial processes.
Key Product Details from Your Query
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Model:Â Q01CPU
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Brand:Â Mitsubishi Electric
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Product Line:Â MELSEC-Q Series
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Origin:Â Japan
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Power Supply (for CPU unit):Â 5 VDC
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Current Consumption (for CPU unit):Â 0.27 A
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Status:Â SEO (Special End-of-Life / Discontinued)
Detailed Product Description
1. Core Function
The Q01CPU is the “brain” of the PLC system. It executes the user-created control program (ladder logic, structured text, etc.), processes I/O (Input/Output) data, and manages communication with other devices.
2. Key Features & Specifications
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Program Capacity:Â 8 k steps. This refers to the maximum size of the user control program it can store.
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Processing Speed:Â Offers a fast processing speed for its class, capable of executing basic instructions in tens of nanoseconds.
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Device Memory:Â Contains a dedicated area for timers, counters, and internal relays necessary for program logic.
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Modular Design:Â It must be installed into a base unit (e.g., a Q33B or Q35B base unit) which provides the slots for I/O modules, communication modules, and power.
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Built-in Interfaces:
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RS-232 Port:Â Used for connecting a programming tool (like GX Works2 or the older GX Developer) for programming, debugging, and monitoring. It can also be used for communication with simple devices like bar code readers or HMIs.
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I/O Control:Â It can control a maximum of 1,024 I/O points (both digital and analog), which are added by installing separate I/O modules onto the same base unit or via extension cables.
3. Physical and Electrical Specifications
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Operating Voltage: The CPU itself is powered by 5VDC, which is supplied by the main Power Supply Module (e.g., a Q61P-A or Q62P) that converts AC power (100-240VAC) to the required DC levels for the entire PLC rack.
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Current Consumption: The CPU draws approximately 0.27A from the 5VDC rail provided by the main power supply module. This is a critical figure for sizing the appropriate power supply module for the entire system.
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Construction:Â Robust industrial design to withstand typical factory environments including vibration, electrical noise, and moderate temperature fluctuations.
4. SEO / Discontinued Status
The “SEO PRODUCT” description indicates that this model is Special End-of-Life. This means:
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It is an older model and has been officially discontinued by Mitsubishi Electric.
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It is no longer in active production.
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New units for purchase are scarce and typically only available from remaining distributor stock or on the secondary/used market.
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Official technical support and repair services from Mitsubishi may be limited or unavailable.
5. Common Applications
The Q01CPU was typically used in a wide range of small-scale automation applications, such as:
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Standalone machine control
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Packaging machinery
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Small conveyor systems
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Material handling equipment
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Automated test stands
6. Important Notes for Users
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Programming Software: The primary software used for programming the Q01CPU is Mitsubishi GX Works2 or its predecessor, GX Developer.
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Replacement/Upgrade: If you are maintaining or replacing an existing system, the Q01CPU is part of the larger Q Series family. For new projects, Mitsubishi strongly recommends migrating to a newer, actively supported CPU like the Q03UDECPU or a model from the newer iQ-R Series, which offer significantly enhanced performance, features, and support.