{"product_id":"siemens-cmr2020-logo-8-communication-modules","title":"Siemens CMR2020 LOGO! 8 Communication Modules","description":"\u003ch2\u003eSiemens LOGO! CMR2020 Communication Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSiemens LOGO! CMR2020\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eLOGO! CMR2020\u003c\/strong\u003e PLC Communication Module, operates as a dedicated hardware component for mobile network communication and remote monitoring within LOGO! 8 Automation Systems. This compact DIN-rail component integrates directly with logic modules via Industrial Ethernet to process mobile cellular telemetry, execute local I\/O switching, and synchronize system clocks without interrupting main program logic execution.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eLOGO! CMR2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrder Number\u003c\/td\u003e\n\u003ctd\u003e6GK7142-7BX00-0AX0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.25 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e90 x 72 x 55 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e12\/24 VDC supply range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Connectivity\u003c\/td\u003e\n\u003ctd\u003eGSM\/GPRS mobile networks, 1 x RJ45 Industrial Ethernet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Inputs\u003c\/td\u003e\n\u003ctd\u003e2 DI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Outputs\u003c\/td\u003e\n\u003ctd\u003e2 DO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTime Synchronization\u003c\/td\u003e\n\u003ctd\u003eGPS \/ NTP protocol support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Class\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003e35 mm DIN-rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Network Execution \u0026amp; Ethernet Interfacing\u003c\/h3\u003e\n\u003cp\u003eThe module processes cyclic data transfers over Profinet \/ EtherNet\/IP deterministic networks and backplane Ethernet links to extend local control loops across wide-area infrastructure. Internal firmware flash compatibility guarantees deterministic handling of event-triggered SMS alerts, email transmissions, and IoT communication protocols (JSON and OPC UA) without degrading I\/O processing cycles on the attached LOGO! 8 base unit.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What power wiring specifications apply when hot-swapping or servicing the LOGO! CMR2020 supply connections?\u003c\/p\u003e\n\u003cp\u003eA: The unit operates from a nominal 12\/24 VDC power source. Service technicians must isolate power before removing the terminal connectors or swapping the SIM card to protect internal GSM\/GPRS modem electronics from transient voltage spikes.\u003c\/p\u003e\n\u003cp\u003eQ: How are field signal lines attached to the 2 DI and 2 DO channels?\u003c\/p\u003e\n\u003cp\u003eA: Digital inputs and relay outputs utilize screw-type terminal blocks. All field control wiring must follow standard industrial separation guidelines, keeping low-voltage DC signals away from high-voltage AC power lines to maintain noise immunity.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the LOGO! CMR2020 directly onto a standard 35 mm DIN-rail inside an IP20 or higher-rated control enclosure. Ensure a minimum clearance of 25 mm above and below the housing to permit passive thermal dissipation. Connect the 12\/24 VDC power leads using shielded two-core cable and verify correct polarity prior to energizing. Secure the cellular antenna cable to the external SMA connector, torqueing hand-tight to avoid damaging internal RF traces. Land field signal wires onto the 2 DI \/ 2 DO terminal strip, verifying that cable shields are grounded at a single cabinet entry point to suppress electromagnetic interference. Insert a active GSM SIM card into the spring-loaded slot before applying power.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":43911919698019,"sku":"CMR2020","price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/153.1_7109d2ee-1921-4816-8bd7-36bd1ff28644.jpg?v=1766545177","url":"https:\/\/www.autocontrolglobal.com\/products\/siemens-cmr2020-logo-8-communication-modules","provider":"AutoControl Global","version":"1.0","type":"link"}