Allen-Bradley 1756-BA1 Battery Assembly
The Allen-Bradley 1756-BA1, also cataloged as the 1756BA1 Battery Assembly, operates as a dedicated hardware component for maintaining non-volatile RAM memory backup during power loss within ControlLogix and FlexLogix processor platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-BA1 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.02 kg (0.04 lbs) |
| Dimensions | Compact Controller Slot Battery Compartment |
| Operating Temp | 0 to 60 deg C (32 to 140 deg F) |
| Power Consumption | 3 VDC Nominal (1800 mAh Capacity) |
| Chemistry | Lithium Manganese Dioxide |
| Compatible Controllers | Series A 1756-L61, 1756-L62, 1756-L63, 1756-L55M, 1756-L60M03SE |
| Category | PLC Battery / Accessory |
Firmware Flash Compatibility & Controller Memory Retention
The lithium battery assembly maintains static memory integrity across system power cycles for Series A ControlLogix processors. By sustaining power to volatile RAM blocks when main chassis power is removed, the battery prevents application code loss and retains controller state data, system clocks, and firmware operational registers. The unit integrates a keyed connector plug to ensure proper polarity alignment when connecting directly to the controller logic board header.
Frequently Asked Questions
Q: Can the 1756-BA1 battery be replaced while the ControlLogix processor is powered on?
A: Replacement under active chassis power is recommended to avoid clearing memory during the swap, provided proper ESD mitigation procedures are followed.
Q: What is the nominal shelf life and discharge rating of this 3 VDC lithium cell?
A: The battery features an 1800 mAh capacity rating designed to sustain non-volatile memory retention for up to 2 years under typical unpowered system storage conditions at standard operating ambient temperatures.
Field Installation Guidelines
- Open the battery compartment door located on the front bezel of the ControlLogix controller assembly.
- Disconnect the existing battery wire harness plug from the circuit board connector header by pulling straight outward without pulling on the wires.
- Insert the keyed connector of the new 1756-BA1 harness into the board header, ensuring correct polarity orientation.
- Place the cell into the housing retaining clip, close the access door securely, and clear the system low-battery LED diagnostic status via RSLogix 5000 / Studio 5000 software.
Allen-Bradley 1756-BA1 Battery Assembly
Allen-Bradley 1756-BA1 Battery Assembly
The Allen-Bradley 1756-BA1, also cataloged as the 1756BA1 Battery Assembly, operates as a dedicated hardware component for maintaining non-volatile RAM memory backup during power loss within ControlLogix and FlexLogix processor platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-BA1 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.02 kg (0.04 lbs) |
| Dimensions | Compact Controller Slot Battery Compartment |
| Operating Temp | 0 to 60 deg C (32 to 140 deg F) |
| Power Consumption | 3 VDC Nominal (1800 mAh Capacity) |
| Chemistry | Lithium Manganese Dioxide |
| Compatible Controllers | Series A 1756-L61, 1756-L62, 1756-L63, 1756-L55M, 1756-L60M03SE |
| Category | PLC Battery / Accessory |
Firmware Flash Compatibility & Controller Memory Retention
The lithium battery assembly maintains static memory integrity across system power cycles for Series A ControlLogix processors. By sustaining power to volatile RAM blocks when main chassis power is removed, the battery prevents application code loss and retains controller state data, system clocks, and firmware operational registers. The unit integrates a keyed connector plug to ensure proper polarity alignment when connecting directly to the controller logic board header.
Frequently Asked Questions
Q: Can the 1756-BA1 battery be replaced while the ControlLogix processor is powered on?
A: Replacement under active chassis power is recommended to avoid clearing memory during the swap, provided proper ESD mitigation procedures are followed.
Q: What is the nominal shelf life and discharge rating of this 3 VDC lithium cell?
A: The battery features an 1800 mAh capacity rating designed to sustain non-volatile memory retention for up to 2 years under typical unpowered system storage conditions at standard operating ambient temperatures.
Field Installation Guidelines
- Open the battery compartment door located on the front bezel of the ControlLogix controller assembly.
- Disconnect the existing battery wire harness plug from the circuit board connector header by pulling straight outward without pulling on the wires.
- Insert the keyed connector of the new 1756-BA1 harness into the board header, ensuring correct polarity orientation.
- Place the cell into the housing retaining clip, close the access door securely, and clear the system low-battery LED diagnostic status via RSLogix 5000 / Studio 5000 software.
