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The 1756-BATM is an externally mounted lithium battery assembly used in ControlLogix PLC systems.
Its main function is to provide backup power for controller memory and real-time clock retention when the main power supply is interrupted.
Unlike small internal battery cells, this module is designed as a complete external battery assembly with cable connection, offering longer service life and easier replacement.
It is widely used in industrial automation systems where data integrity and uninterrupted controller memory retention are critical for production continuity.
Typical application environments include manufacturing plants, process industries, energy systems, and machine automation systems.
| Item | Details |
|---|---|
| Brand | Industrial automation ControlLogix platform |
| Product Model | 1756-BATM |
| Product Type | Battery Module / Battery Assembly |
| Product Family | ControlLogix 1756 Series |
| Series | ControlLogix Accessories |
| Function | Memory backup power supply |
| Installation Type | External panel or DIN rail mounting |
The ControlLogix platform is a modular PLC system designed for high-performance industrial automation applications.
Within this architecture, the 1756-BATM battery module provides external backup power to preserve controller memory, system configuration, and real-time clock data.
It is typically connected to ControlLogix processors such as L6x series controllers, ensuring uninterrupted memory retention during power loss events.
This module is part of the ControlLogix support accessory ecosystem, designed to improve system reliability and data safety.
| Parameter | Specification |
|---|---|
| Model | 1756-BATM |
| Product Type | External Battery Module |
| Battery Type | Lithium battery assembly (includes 1756-BATA cell pack) |
| Nominal Input Current | 15 mA @ 5.1V DC |
| Output Voltage | 3.6V DC |
| Output Current | 20 mA max |
| Maximum Discharge Current | 20 mA |
| Compatible Controllers | 1756-L55Mxx, 1756-L61, 1756-L62, 1756-L63 |
| Memory Backup Function | Yes |
| Real-Time Clock Backup | Yes |
| Cable Length | ~1 m (3.28 ft) |
| Mounting Method | Panel mount or DIN rail |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Vibration Resistance | 2 g (10–500 Hz) |
| Shock Resistance | 30 g (panel mounted) / 15 g (DIN rail) |
| Power Dissipation | ~4.5 W |
| Enclosure Type | Open-style assembly |
| Dimensions | ~20 × 24 × 8 cm |
| Weight (kg) | ~1.08–1.10 kg |
Unlike small internal cells, the BATM module is externally mounted for easier maintenance and replacement.
Provides stable memory retention for controller programs and system data.
Supports both panel mounting and DIN rail mounting configurations.
Designed to withstand vibration, shock, and harsh industrial environments.
Includes dedicated cable for flexible installation inside control cabinets.
Used to preserve ControlLogix controller programs and runtime data during power loss.
Supports continuous operation in production automation environments.
Used in chemical, oil & gas, food processing, and water treatment systems.
Ensures data retention in power generation and distribution systems.
Used in CNC machines, robotics, and automated production equipment.
| Advantage | Description |
|---|---|
| External Design | Easy maintenance and replacement |
| Stable Memory Backup | Prevents PLC data loss |
| Long Service Life | Industrial-grade lithium battery |
| Flexible Mounting | Panel or DIN rail installation |
| High Reliability | Stable performance in harsh environments |
| Shock Resistance | Suitable for vibration-prone systems |
| Wide Compatibility | Supports multiple ControlLogix CPUs |
| Consistent Voltage Output | Reliable backup power supply |
| Model | Product Type | Main Function | Compatible Systems | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1756-BA1 | Lithium Battery | Internal memory backup | ControlLogix | 5 × 2 × 2 cm | 0.017 kg |
| 1756-BA2 | Battery Assembly | Enhanced backup battery | ControlLogix | 6.8 × 3.5 × 1.8 cm | 0.03 kg |
| 1756-BATM | External Battery Module | Controller memory backup | ControlLogix L6x | 20 × 24 × 8 cm | 1.1 kg |
| 1756-BATA | Battery Cell Pack | Replacement lithium cell | ControlLogix | 5 × 2 × 2 cm | 0.01 kg |
| 1756-PA75 | Power Supply | Chassis power unit | ControlLogix rack | 15 × 15 × 20 cm | 2.5 kg |
| Model | Product Category | Main Features | Application Area | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1756-L71 | CPU Module | High-performance controller | Industrial automation | 20 × 15 × 10 cm | 0.90 kg |
| 1756-L73 | CPU Module | Advanced processing CPU | Distributed control systems | 20 × 15 × 10 cm | 0.95 kg |
| 1756-EN2TR | Ethernet Module | Dual Ethernet/IP ports | Industrial networking | 14 × 11 × 8 cm | 0.45 kg |
| 1756-IF8 | Analog Input Module | 8-channel input | Process control | 15 × 12 × 5 cm | 0.35 kg |
| 1756-OB16E | Digital Output Module | 16-point output module | Machine automation | 15 × 12 × 5 cm | 0.40 kg |
The 1756-BATM plays a key role in ensuring controller reliability by maintaining memory integrity during unexpected power loss.
It protects PLC programs, configuration data, and system parameters from being lost or corrupted.
This ensures faster system recovery and improved production stability after power restoration.
The module is installed externally and connected via a dedicated cable to compatible ControlLogix controllers.
Installation is simple and typically performed inside industrial control cabinets.
Battery replacement is straightforward and does not require full system shutdown in many cases.
Regular inspection is recommended to ensure reliable backup performance.
The 1756-BATM is designed for continuous industrial use under demanding operating conditions.
It provides stable backup performance, high shock resistance, and long operational lifespan.
It is widely used in automation systems requiring high data integrity and system uptime reliability.
The Allen Bradley 1756-BATM is an external lithium battery module designed for ControlLogix PLC systems.
It provides reliable memory backup, real-time clock retention, and stable performance under industrial conditions.
Its external design, durability, and compatibility make it an essential accessory in industrial automation systems.