The Real Time Clock has an accuracy of 0 ¡C or +32 ¡F, accuracy is +34 to -70 seconds/month. It may not completely delete the program but corrupt parts of the data causing unreadable or unrecognized file. This memory component is sensitive to electrostatic discharge. The contents stored to this memory module cannot be easily erased unless a specific voltage is applied to the memory componentÕs pin. Similar to other memory modules, the memory of this combination module is an Electrically Erasable Programmable Read Only Memory (EEPROM). Not only it provides a battery independent memory, it also provides an accurate time and day reference for scheduling of PLC loads and control elements. This module is an accessory module for MicroLogix 1500 controller. The Allen-Bradley 1764-MM1RTC is a combination module that features a memory module with 8KB memory and a Real-time clock in a common housing. Load Memory Module on Memory Error S:1/10 For +25 ¡C or +77 ¡F, accuracy is +36 to -68 seconds/month, for +40 ¡C or +104 ¡F, rated accuracy is +29 to -75 seconds/month and at +55 ¡C or +131 ¡F, accuracy is -133 to -237 second User Program and Data Back-up, User Program Compare, Data File Download Protection, Memory Module Write Protection and Removal/Insertion Under PowerĠ ¡C or +32 ¡F, accuracy is +34 to -70 seconds/month. Read less.Technical Specifications for 1764-MM1RTC Manufacturer: To the extent any of the products sold by AB Electric Supply requires software for operation, you acknowledge that AB Electric Supply does not sell or license such software and that it is solely your responsibility to obtain the software or a proper license to use it from authorized sources. AB Electric Supply makes no representation that the version of the firmware that is installed on any product it sells is appropriate for your needs or use.įurther, AB Electric Supply does not sell, re-sell, or license software that may be needed to operate certain hardware and customers must obtain any necessary software licensing, maintenance, or upgrades from the manufacturer or other authorized source. To the extent you wish to use such firmware, it is your responsibility to comply with the terms of any applicable license or other such agreement related to the download, installation, or use of the firmware. AB Electric Supply makes no representation as to your ability or right to download, obtain, or use any firmware provided by the product's manufacturer. Some of the products sold by AB Electric Supply may come with firmware installed on them.

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