{"product_id":"allen-bradley-1762-mm1rtc-micrologix-1200-memory-clock-module","title":"Allen-Bradley 1762-MM1RTC MicroLogix 1200 Memory Clock Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1762-MM1RTC\u003c\/strong\u003e is a dual-function expansion module designed for the MicroLogix 1200 programmable logic controller system. It combines a 6 Kbyte flash memory storage area with a real-time clock (RTC) circuit, providing program back-up capability alongside time-based control. The module snaps directly into the processor's memory module port, retaining critical user data and maintaining system time during main power outages.\u003c\/p\u003e\n\u003ch3\u003eDual Storage and Real-Time Clock Architecture\u003c\/h3\u003e\n\u003cp\u003eThe 6 Kbyte non-volatile flash memory allows operators to store user programs and controller data for transport, backup, or field program updates. Integrated write-protection capabilities prevent accidental data modification during transfer operations. The real-time clock unit operates with 1-second resolution to maintain system-wide temporal tracking across year, month, day, day of the week, hour, minute, and second.\u003c\/p\u003e\n\u003ch3\u003ePower Maintenance and Hot Swapping\u003c\/h3\u003e\n\u003cp\u003ePower for the timekeeping circuit is maintained by an internal 3.0 VDC lithium battery when main operational power is removed. The module is engineered for hot-swappable installation, enabling maintenance technicians to insert or remove the module under operational bus power without interrupting controller execution or risking electrical fault.\u003c\/p\u003e\n\u003ch3\u003eTechnical 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\u003e1762-MM1RTC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eMemory Module and Real-Time Clock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Product Line\u003c\/td\u003e\n\u003ctd\u003eMicroLogix 1200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Capacity\u003c\/td\u003e\n\u003ctd\u003e6 Kbytes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClock Resolution\u003c\/td\u003e\n\u003ctd\u003e1-second increments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTime Tracking Parameters\u003c\/td\u003e\n\u003ctd\u003eYear, Month, Day, Day of Week, Hour, Minute, Second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e4.5 VDC to 5.5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e0.025 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 500 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackup Battery Type\u003c\/td\u003e\n\u003ctd\u003eInternal Lithium Battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Nominal Voltage\u003c\/td\u003e\n\u003ctd\u003e3.0 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 °C to +55 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 °C to +60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Weight\u003c\/td\u003e\n\u003ctd\u003e0.26 kg (0.56 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFunctional Application and System Integration\u003c\/h3\u003e\n\u003cp\u003eBy installing the \u003cstrong\u003e1762-MM1RTC\u003c\/strong\u003e, MicroLogix 1200 controllers gain temporal scheduling features to trigger event-driven sequences based on precise calendar times. Memory program transfer completes in under 500 milliseconds, allowing fast program execution upon initial boot or module transfer. Operating power is drawn directly through the memory port connection within a 4.5 VDC to 5.5 VDC range, consuming 0.025 Watts during operation.\u003c\/p\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cp\u003eBefore installing the module into a MicroLogix 1200 base unit, remove the protective cover from the memory module slot located on the front panel. Align the module connector pins with the internal socket and press firmly until fully seated. Ensure the retaining tabs latch securely to maintain mechanical stability in high-vibration environments.\u003c\/p\u003e\n\u003cp\u003eFrequently Asked Questions\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1762-MM1RTC be replaced while the MicroLogix 1200 base unit is powered up? A: Yes, the 1762-MM1RTC supports hot swapping, allowing removal or insertion under power without shutting down the controller.\u003c\/p\u003e\n\u003cp\u003eQ: How does the 1762-MM1RTC maintain time accuracy during a facility power outage? A: The module contains an internal 3.0 VDC lithium battery that independently powers the clock circuit when main system power is disconnected.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":67156319567987,"sku":"1762-MM1RTC","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/1762-MM1RTC.png?v=1794291048","url":"https:\/\/www.dcssupplier.com\/products\/allen-bradley-1762-mm1rtc-micrologix-1200-memory-clock-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}