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1762-MM1RTC
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Product Description
The Allen-Bradley 1762-MM1RTC is an Allen-Bradley Memory and Real-Time clock Module compatible for use with MicroLogix 1200 Programmable Logic Controllers (PLC). The integrated memory of this module amounts to 6KB while the Real-Time Clock provides Year, Month, Day, Day of Month, Day of Week, Hour, Minute, and Seconds. This memory module may be used and with other MicroLogix 1200 controller.Other Available Revisions for the 1762-MM1RTC 1762-MM1RTC//A
Common misspellings:
- l762-MM1RTC
- 1762-MMlRTC
- 1762MM1RTC
Technical Specifications for 1762-MM1RTC
| Manufacturer: | Rockwell Automation |
|---|---|
| Brand: | Allen-Bradley |
| Product Family: | MicroLogix 1200 |
| Product Type: | Memory Module |
| Part Number: | 1762-MM1 |
| Supported controllers: | 1762-L24AWA, 1762-L24AWAR, 1762-L24BWA, 1762- L24BWAR, 1762 -L24BXB, 1762-L24BXBR, 1762 -L40AWA, 1762 -L40AWAR, 1762- -L40BWA, 1762- -L40BWAR, 1762- - L40BXB, and 1762- -L40BXBR |
| Allowable Functions: | Memory Module: User Program and Data Back-up, User Program Compare, Data File Download Protection, Memory Module Write Protection and Removal/Insertion Under Power Real Time Clock: Write data to Real-Time Clock |
| Real Time Clock Accuracy: | 0 ¡C or +32 ¡F, accuracy is +34 to -70 seconds/month. 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 |
| Mounting: | Memory Module slot |
| User Memory: | 6 Kbytes |
| Operating Temperature: | 0-55 deg.C |
| Support automatic loading: | Yes |
| Support for removal under power: | Yes |
| System Status File: | S:2/9 Memory Module Program Compare |
| Control Bits: | Load Memory Module on Memory Error S:1/10 Load Memory Module Always S:1/11 On Powerup, Go to run S:1/12 |
| system Overhead: | 270 µs |
| Configuration Software | RSLogix 500; |
About 1762-MM1RTC
The 1762-MM1RTC is MicroLogix 1200 option component that is used to provide a non-volatile memory and clock functions such as Year, Month, Day, Day of Month, Day of Week, Hour, Minute, and Seconds. The Real-Time clock enables the controller to be used in time-dependent applications such as scheduling of equipment and devices. The memory module does not add or increase the amount of the integrated memory of the MicroLogix 1200 controller it is installed to. It simply provides a secondary, non-volatile and removable storage. It allows data backup, Data File Download Protection, Memory Module Write Protection, Removal and Insertion Under Power (RIUP). Any MicroLogix controller is provided with a memory module slot where the 1762-MM1RTC is installed. For implementing time-based applications, the 1762-MM1RTC provides time, date, seconds information. Real-Time allows implementation of time or date dependent applications, typically used in Heating, Ventillation and Air-Conditioning (HVAC). This allows an equipment or device to automatically run or function, enabling equal runtime distribution. It may also be used in other applications that require the same functionality. The accuracy of Real-Time Clock depends on the ambient temperature. Specifically, if operated at a temperature of 0 ¡C or +32 ¡F, accuracy is +34 to -70 seconds/month. 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 seconds/month. These provided accuracy values are worst case values over 31-day month period. Though integrated with a Real-Time Clock, the memory module can store up to one user program only. If planning to insert to an active or live controller, the memory module will not put the controller to STOP mode or faulted mode. Installation will be allowed however, a power cycle is needed before the memory module is recognized and carry out the intended operation needed. When active transfer is being executed, the controllerÕs RUN LED flashes. Avoid interruption, whether manual or unintended interruption such as Power Loss when in the middle of data transfer to avoid data corruption. The 1762-MM1RTC is designed to fit with MicroLogix 1200 controllers. Only 1762 MicroLogix controllers are supported particularly 1762-L24AWA, 1762-L24AWAR, 1762-L24BWA, 1762-L24BWAR, 1762 -L24BXB, 1762-L24BXBR, 1762 -L40AWA, 1762 -L40AWAR, 1762-L40BWA, 1762-L40BWAR, 1762-L40BXB, and 1762-L40BXBR. The Real-Time Clock is provided with an internal battery with lifespan of 5 years at an operating temperature of 0 to 40 ¡C or 32-104 ¡F. If planning to store this module, temperature of storage facility must be at -40 - 60 ¡C or -40 -140 ¡F. Recommended installation of this module must not exceed Six (6) months. If the RTC battery is within low level, RTC data may be lost. However, if the controller where the module is installed is supplied with power, the RTC will operate normally. This behavior is similar to a computerÕs CMOS battery.F.A.Q for 1762-MM1RTC
| Q: 1. Does the 1762-MM1RTC has higher memory capacity? | A: No, the memory size remains at 6Kbytes. |
|---|---|
| Q: 2. Can I use MicroLogix 1100 program stored to a 1762-MM1? | A: No. The moduleÕs purpose will be defeated. The program components including the logic may be used with a 1762 controller provided that the process type is changed to MicroLogix 1200. |
| Q: 3. What is the accuracy of Real-Time clock? | A: At 0 ¡C or +32 ¡F, accuracy is +34 to -70 seconds/month. 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 seconds/month |
PDFsupply Tech
The 1762-MM1RTC is a Memory Module with Real-Time Clock component. This module aside from providing a non-volatile memory, allows the controller to perform an accurate time dependent automation. Compared to the 1762-MM1 which does not have a real time clock, the 1762-MM1RTC offers more functionality and additional automation capability.
