{"product_id":"omron-cpm1a-20cdt-a-v1-cpm1a-cpu-base-unit","title":"Unité de base CPU Omron CPM1A-20CDT-A-V1 CPM1A","description":"\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nTo coordinate discrete, machine-level logic within localized industrial control architectures, the \u003cstrong\u003eOmron CPM1A-20CDT-A-V1\u003c\/strong\u003e serves as an integrated micro PLC base unit. This controller consolidates CPU processing, power conversion, and digital I\/O interfaces into a single compact housing. Engineered for stand-alone machinery, basic conveyor control, and utility automation, it executes operations with an integrated AC power supply and high-speed transistor switching logic, eliminating the footprint requirements of modular rack systems.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eIntegrated High-Density I\/O:\u003c\/strong\u003e Provides 12 digital inputs and 8 transistor outputs (sink type) on fixed terminal strips.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eRobust Power Management:\u003c\/strong\u003e Operates directly on wide-range utility AC lines (85 to 264 VAC) with built-in surge filtering.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eHigh-Speed Processing:\u003c\/strong\u003e Supports basic instruction execution speeds starting at 0.72 microseconds.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003ePulse Handling Capabilities:\u003c\/strong\u003e Features a built-in 5 kHz high-speed encoder input channel and a 2 kHz pulse output channel for micro-positioning controls.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eAnalog Adjustment:\u003c\/strong\u003e Includes two built-in analog setting dials on the front face for manual timer\/counter value tuning without programming software.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003ePackaging Machinery:\u003c\/strong\u003e Precise control of sealing bars, label applicators, and indexing conveyors.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eSmall Pump Stations:\u003c\/strong\u003e Level monitoring, alternation control, and localized alarm reporting.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eMaterial Handling:\u003c\/strong\u003e Sorting, localized pneumatic gating, and basic motor drive synchronization.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eHVAC Control Units:\u003c\/strong\u003e Automated fan cycling, damper modulation, and temperature sensor integration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\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;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d;\"\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eSpecification Parameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eTechnical Value\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eOmron Industrial Automation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eModel Code\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCPM1A-20CDT-A-V1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eProduct Series\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCPM1A Micro Controller Series\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eSupply Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e85 to 264 VAC, 50\/60 Hz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003ePower Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e60 VA maximum\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eBuilt-in Input Points\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e12 points (24 VDC, photo-coupler isolated)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eBuilt-in Output Points\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e8 points (Transistor, Sink type)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eProgram Memory Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e2,000 words (EEPROM)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eData Memory Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e1,000 words (Read\/Write DM area)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eInstruction Execution Speed\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eBasic: 0.72 microseconds; Special: 1.72 microseconds\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eHigh-Speed Input Functions\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSingle-phase incremental encoder up to 5 kHz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eHigh-Speed Output Functions\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003ePulse train output up to 2 kHz (transistor sink)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eExpansion Capability\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eNot supported on 20-point AC base units\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eEnclosure Protection Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eIP20 (equivalent)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0 to 55 degC ambient (non-condensing)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eDimensions (H x W x D)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e90 mm x 86 mm x 70 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.65 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e130 mm x 110 mm x 95 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\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;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d;\"\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eTerminal Block Section\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eTerminal Label\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eFunction \/ Connection Assignment\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\" rowspan=\"4;\"\u003eUpper Terminal Block (Power \u0026amp; Inputs)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eL, N\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eAC Main Supply Power Lines (85 to 264 VAC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eGR\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eGround \/ Protective Earth Terminal\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCOM (Inputs)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCommon Terminal for 24 VDC Input Circuits\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e00 to 11\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e12 Discrete DC Input Terminals (including high-speed encoder inputs)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\" rowspan=\"3;\"\u003eLower Terminal Block (Outputs \u0026amp; Service)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e24VDC Out (+ \/ -)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eAuxiliary Service Power Supply for local transducers (maximum 300mA)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCOM (Outputs)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCommon Negative Return for Transistor Outputs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #cbd5e0;\"\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e00 to 07\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e8 Transistor Sink Outputs (Output 00 and 01 support 2 kHz pulse train output)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nThe CPM1A series is legacy, having been succeeded by the modern \u003cstrong\u003eOmron CP1E\u003c\/strong\u003e or \u003cstrong\u003eCP1L\u003c\/strong\u003e platforms. For migration, logic must be ported using \u003cstrong\u003eCX-Programmer\u003c\/strong\u003e software. While the core instruction set maps closely, I\/O terminal mapping and high-speed counter registers differ. Always review direct hardware configuration offsets prior to porting program loops.\n\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nBecause the transistor outputs are \u003cstrong\u003eSink Type\u003c\/strong\u003e, the load is connected between the positive voltage rail (typically +24 VDC) and the PLC output terminal. Connecting the load to ground instead of the positive terminal will prevent operation and can lead to reverse-current fault modes. Verify that external freewheeling diodes are placed across inductive loads to suppress voltage spikes.\n\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nThe auxiliary 24 VDC terminal output is useful for loop-powered sensors, but exceeding its 300 mA current limit will cause the internal power supply to switch into current-limiting shutdown. Use an external, isolated power supply for heavy transducer or relay clusters, and ensure its negative common is tied securely to the PLC output COM terminal to close the logic loop.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Prior to attempting mounting, terminal configuration, or wire insertion, completely de-energize all primary AC feeding lines. Verify with a calibrated voltmeter that no potential exists across L and N terminals. Failure to isolate power may cause fatal shock, device failure, or permanent input circuit degradation.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e1\u003c\/span\u003e\n  \u003cp style=\"margin: 0; color: #2d3748;\"\u003eSnap the base unit housing directly onto standard 35 mm symmetric DIN rail or use the integrated pull-out mounting brackets to secure the unit directly to the backplate.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e2\u003c\/span\u003e\n  \u003cp style=\"margin: 0; color: #2d3748;\"\u003eRoute the incoming AC lines (85-264 VAC) through physical barriers separate from the signal lines, and wire them strictly to the designated top-left terminal slots.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e3\u003c\/span\u003e\n  \u003cp style=\"margin: 0; color: #2d3748;\"\u003eGround the GR terminal with a heavy, low-impedance copper wire (2 mm minimum cross-section) connected directly to the system cabinet earth busbar to block EMI.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e4\u003c\/span\u003e\n  \u003cp style=\"margin: 0; color: #2d3748;\"\u003eConfirm logic compatibility (sink-to-common) for input circuits. Tighten all screw-terminal connections to standard torque limits to prevent contact resistance heating.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":53077912551787,"sku":"CPM1A-20CDT-A-V1","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/CPM1A-20CDT-A-V1-lqvyn3ptij3.png?v=1775733654","url":"https:\/\/www.plcprotech.com\/fr\/products\/omron-cpm1a-20cdt-a-v1-cpm1a-cpu-base-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}