{"product_id":"mitsubishi-electric-q02cpu-melsec-q-series-plc-cpu-module","title":"Mitsubishi Electric Q02CPU MELSEC Q Series PLC CPU Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDesigned for centralized control in mid-scale automation architectures, the \u003cstrong\u003eMitsubishi Electric Q02CPU\u003c\/strong\u003e functions as a high-performance programmable logic controller processor within the MELSEC Q Series family. This module coordinates sequence control and device data processing with an optimized instruction set, supporting highly stable operations across manufacturing lines. Featuring a compact modular footprint, it integrates directly into standard Q Series base units, enabling seamless expansion and communication with specialized I\/O and network modules.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Speed Processing:\u003c\/strong\u003e Basic instruction processing speed of 0.079 us (microseconds) per LD instruction for rapid program execution.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptimized Program Memory:\u003c\/strong\u003e 28 k steps program capacity with 112 KB of internal program memory.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBroad I\/O Capabilities:\u003c\/strong\u003e Supports up to 4096 local and remote I\/O points, alongside 8192 direct device points.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Storage Options:\u003c\/strong\u003e Built-in slot for memory cards (SRAM, Flash, or ATA) to easily manage recipe data, logging, and program backups.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Communication:\u003c\/strong\u003e Built-in RS-232 interface for direct connection to programming PCs, HMIs, and serial devices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomated Assembly Lines:\u003c\/strong\u003e Handles coordinated sequence control for multi-station assembly systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Handling Systems:\u003c\/strong\u003e Manages complex conveyor networks, sorters, and transfer systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackaging and Food Processing:\u003c\/strong\u003e Drives packaging lines requiring fast processing of sensor signals and precise actuator outputs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUtility and Water Treatment:\u003c\/strong\u003e Serves as the central PLC for localized pump stations and filtration systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2d3748;\"\u003e\n        \u003cth style=\"padding: 0.5rem; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 0.5rem; font-weight: bold;\"\u003eValue\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eMitsubishi Electric\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eQ02CPU\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eSeries\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eMELSEC Q Series\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eProgram Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e28 k steps\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eProgram Memory\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e112 KB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eLD Instruction Execution Speed\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e0.079 us\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eI\/O Points\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e4096 points (local\/remote)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eI\/O Device Points\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e8192 points\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eInternal Current Consumption (5V DC)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e0.60 A\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eOperating Temperature Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e0 to 55 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.30 kg;\"\u003e0.30 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e120 mm x 110 mm x 45 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2d3748;\"\u003e\n        \u003cth style=\"padding: 0.5rem; font-weight: bold;\"\u003eConnector \/ Port\u003c\/th\u003e\n        \u003cth style=\"padding: 0.5rem; font-weight: bold;\"\u003eInterface Type\u003c\/th\u003e\n        \u003cth style=\"padding: 0.5rem; font-weight: bold;\"\u003eFunction Assignment\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eBuilt-in Serial Port\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eRS-232 (Mini-DIN 6-Pin)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eProgramming, debugging, and direct HMI connection\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eMemory Card Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003ePCMCIA-compliant slot\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eExternal memory card installation (SRAM\/Flash\/ATA)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe Q02CPU is a legacy standard model within the MELSEC Q series. For systems requiring faster processing speeds, integrated Ethernet connectivity, or expanded data logging, consider the Q03UDVCPU or Q04UDVCPU. When swapping to a Universal Q Series CPU, verify program parameters in GX Works2 as some specialized instruction behaviors and memory card formats vary between the classic Q02CPU and newer \"Universal\" (UD\/UDV) modules.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe Q02CPU has a strict program limit of 28 k steps. Exceeding this limit will trigger compilation failures. When utilizing extensive file registers (ZR), ensure you allocate the memory blocks correctly in the PLC parameters before downloading. If the battery voltage drops, stored latch data and SRAM contents will be lost; always establish a periodic preventative maintenance schedule to replace the Q6BAT backup battery.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen connecting to the RS-232 port with a QC30R2 programming cable or third-party serial-to-USB converters, ensure the communications parameters in GX Works2\/GX Developer match (baud rate, parity, stop bits). To prevent serial communication dropouts caused by high-frequency electromagnetic interference (EMI) from neighboring variable frequency drives (VFDs), ensure the base unit’s functional ground (FG) terminal is grounded directly to a low-impedance earth point.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; border-radius: 4px;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c;\"\u003eCRITICAL WARNING:\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0.5rem 0 0 0;\"\u003eIsolate and completely lock out the main power supply feeding the MELSEC Q base unit before mounting or removing the CPU module. Hot-swapping the CPU module is strictly prohibited and will result in irreversible hardware damage or unpredictable system behavior.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eAlign the lower hook of the Q02CPU into the guide hole on the main base unit (e.g., Q33B, Q35B, Q38B).\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003ePush the module firmly into place against the base unit connector, ensuring there is no gap.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eSecure the module by tightening the top retention screw (torque to 0.36 to 0.48 N-m) to prevent vibration-induced disconnection.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eConnect the programming or communication cable to the built-in RS-232 port, applying adequate strain relief.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102148223339,"sku":"Q02CPU","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/Q02CPU-vpwhruls4d1.png?v=1776137913","url":"https:\/\/www.plcprotech.com\/ms\/products\/mitsubishi-electric-q02cpu-melsec-q-series-plc-cpu-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}