PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1762-MM1RTC is a MicroLogix Memory and Real-Time Clock Module for MicroLogix systems. It combines user program memory storage with an integrated hardware real-time clock. The unit provides 6 Kbytes of memory capacity for program logic and data. The internal clock tracks calendar and time data in one-second increments.
This hardware operates across an operational voltage range of 4.5V DC to 5.5V DC. Total power dissipation is rated at 0.025 Watts during routine operation. An internal 3.0V DC lithium battery maintains time tracking during controller power loss. The module supports removal and insertion under operating power. Program loading restores stored data in less than 500 milliseconds.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Operating Voltage Range | 4.5V to 5.5V DC |
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| Power Dissipation | 0.025 Watts |
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| Memory Size | 6 Kbytes |
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| Clock Resolution | 1-second increments |
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| Clock Data Parameters | Tracks Year, Month, Day, Day of Week, Hour, Minute, and Second |
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| Battery Type | Internal lithium battery |
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| Battery Nominal Voltage | 3.0V DC |
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| Load Time | < 500 ms |
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| Hot Swappability | Remove/insert under power |
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| Inputs | 4 interrupt and 4 pulse catch/latching |
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| Operating Temperature | 0 °C to +55 °C |
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| Storage Temperature | −40 °C to +60 °C |
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| Operating Humidity | 5 %–95 % non-condensing |
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| Weight | 0.56 lbs (0.26 kg) |
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TECHNICAL INFORMATION
Features
- Provides 6 Kbytes of memory storage for controller logic and data.
- Integrates a real-time clock with 1-second resolution increments.
- Tracks year, month, day, day of week, hour, minute, and second.
- Includes an internal 3.0V DC lithium battery for clock retention.
- Supports removal and insertion under base controller operating power.
- Executes program restoration with load times under 500 milliseconds.
- Draws minimal power with total dissipation rated at 0.025 Watts.
TECHNICAL INFORMATION
Installation Guidelines
- Module insertion and removal under operational power is supported by design.
- Maintain ambient cabinet operating temperatures between 0 °C and +55 °C.
- Operate the equipment within an ambient relative humidity range of 5% to 95% non-condensing.
TECHNICAL INFORMATION
Compatibility
- Designed for use with Allen-Bradley MicroLogix 1200 series controllers.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSDesigned for use with Allen-Bradley MicroLogix 1200 series controllers.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What functions does the Allen-Bradley 1762-MM1RTC provide?
The 1762-MM1RTC provides 6 Kbytes of memory backup and an integrated real-time clock. It tracks complete calendar and time values in 1-second intervals.
Can the 1762-MM1RTC be inserted or removed under power?
Yes. The module supports insertion and removal under operational power without interrupting controller operations.
Which controller family works with the 1762-MM1RTC module?
The 1762-MM1RTC module is designed for use with Allen-Bradley MicroLogix 1200 series controllers.
How is the real-time clock maintained during a power interruption?
The module contains an internal 3.0V DC lithium battery that sustains timekeeping when main controller power is lost.
