The Reliance Electric 45C272 expands the memory capacity of AutoMate 15/20/30/40 controllers significantly. This module increases user program storage without modifying the existing processor hardware. Therefore, you can handle larger logic applications and more complex automation tasks smoothly.
Technical Specifications & Physical Attributes
This section lists the exact hardware parameters for the 45C272 module. Use this data for system integration or compatibility checks.
| Parameter | Specification |
|---|---|
| Part Number | 45C272 |
| Manufacturer | Reliance Electric |
| Category | Memory Expansion Module |
| Memory Type | Static RAM (battery-backed) |
| Memory Capacity | 16K Words (expandable to 32K with optional piggyback board) |
| Battery Backup | Yes (on-board lithium battery retains data during power loss) |
| Battery Life | Approximately 5 years under normal conditions |
| Dimensions (H x W x D) | 8.5 cm x 15.2 cm x 2.0 cm |
| Product Weight | 0.25 kg (0.55 lbs) |
| Power Consumption | 0.5W from the backplane |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
Hardware Integration & Installation Notes
The 45C272 module occupies one single slot in the AutoMate backplane. It uses a 32-pin edge connector for direct communication with the central processor. You will find a jumper array on the board. These jumpers define the starting memory address for seamless mapping. The module contains one removable lithium battery. This battery preserves all stored program data during extended shutdowns. Always replace the battery with the 45C272 powered on to avoid data loss.
Functional Benefits for Your Control System
Adding the 45C272 effectively doubles your available logic memory. You can now store larger ladder diagrams and more data registers. The module also supports real-time data logging for advanced diagnostics. For robust power protection in your panel, consider a device like the RMS-TSG-TZ-C Static Trip unit from Siemens (see Alibaba link). That device complements the Reliance Electric 45C272 by ensuring clean power delivery. Together, they create a highly reliable automation environment.
Compatibility Notes
This memory module works exclusively with AutoMate series programmable controllers. It does not support standalone operation or other PLC brands. The 45C272 requires firmware version 4.0 or higher on the main processor.
Details
| Weight | 3.6 kg |
|---|---|
| Dimensions | 280 × 150 × 80 mm |
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