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Accessory Products
Real-Time Clock and Memory Modules
These optional modules attach to the processor unit. Both types of modules can be inserted or removed while the unit is under power.
1764 Real-Time Clock Modules
- Establish a time-base for controller functions that need to be coordinated with real-time events.
- Provide year, month, day of month, day of week, hour, minute, and second information to the controller by using the RTC function file.
1764 Memory Modules
- Allow user programs and data to be stored as backup.
- Transport programs for use with other controllers.
- Allow safety/security for press control and other critical applications.
- Enable auto-recovery, through a power cycle, after a controller fault.
- Allow comparison of programs.
- Enable data file and memory module write protection.
| Cat. No. | Description |
| 1764-RTC | MicroLogix 1500 Real-Time Clock Module |
| 1764-MM1 | MicroLogix 1500 8 KB Memory Module |
| 1764-MM1RTC | MicroLogix 1500 8 KB Memory Module with Real-Time Clock |
| 1764-MM2⋆ | MicroLogix 1500 16 KB Memory Module |
| 1764-MM2RTC⋆ | MicroLogix 1500 16 KB Memory Module with Real-Time Clock |
| 1764-MM3‡ | MicroLogix 1500 16 KB Memory Module with recipe data storage |
| 1764-MM3RTC‡ | MicroLogix 1500 16 KB Memory Module with recipe data storage and Real-Time Clock |
| ⋆ Use with the 1764-LRP processor to support larger program and data requirements. ‡ These modules have the same user memory as the 1764-MM2 and 1764-MM2RTC modules expect recipe data size. Recipe data which was stored to the Data Log Queue or in the MicroLogix 1500 LRP can be stored to the 1764-MM3 and 1764-MM3RTC modules. There is no other difference in functionality. |
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