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Allen Bradley 1756-L55M22 ControlLogix Logix5555 Processor
- Product Details
- FAQs
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- Packing & Delivery
- Product Ratings
Product Introduction
The Allen Bradley 1756-L55M22 ControlLogix Logix5555 Processor is a high-performance programmable automation controller (PAC) designed for the ControlLogix platform, featuring 750 KB of non-volatile user memory (NVRAM). This processor is ideal for industrial automation systems that require reliable memory retention even during power loss, allowing critical programs and data to remain intact.
The L55M22 supports real-time control, data acquisition, motion control, and communication with digital, analog, and specialty I/O modules. Its deterministic execution ensures predictable system behavior, making it suitable for manufacturing, process automation, and machinery monitoring applications where reliability and data integrity are critical.
This processor integrates seamlessly into ControlLogix racks, offering a compact footprint, efficient power consumption, and robust electrical isolation for stable and safe operation in industrial environments.
Product Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-L55M22 |
| Manufacturer | Allen Bradley |
| Product Type | Logix5555 Processor |
| System Compatibility | ControlLogix Platform |
| User Memory | 750 KB Non-Volatile RAM (NVRAM) |
| Mounting Type | ControlLogix chassis backplane |
| Electrical Isolation | Standard backplane isolation |
| Backplane Current @ 5 VDC | 6.31 mA |
| Backplane Current @ 24 VDC | 14 mA |
| Operating Temperature Range | 0 to 60°C (32 to 140°F) |
| Power Dissipation | Low power suitable for compact systems |
| Dimensions | 145.2 x 34.6 x 139.6 mm |
| Weight | 0.54 kg |
Applications
● Acts as the central processor for ControlLogix systems, managing I/O, logic, and motion control.
● Maintains program and data integrity during power loss with non-volatile RAM.
● Suitable for manufacturing, process automation, and machinery monitoring applications.
● Interfaces with ControlLogix analog, digital, and specialty modules for scalable automation.
● Supports real-time data acquisition, alarm monitoring, and sequencing operations.
● Optimized for systems requiring mid-range memory with reliable retention.
Advantages
● 750 KB non-volatile RAM ensures critical program and data retention during power interruptions.
● Deterministic execution supports reliable real-time control.
● Low backplane current reduces system power consumption.
● Standard electrical isolation protects the processor and backplane modules from transient events.
● Seamless integration with other ControlLogix modules provides flexible system expansion.
● Compact design and robust industrial performance enable efficient deployment in ControlLogix racks.
FAQ
1. What type of memory does the 1756-L55M22 use?
It features 750 KB of non-volatile RAM (NVRAM) for reliable program and data retention.
2. Can it execute real-time control programs?
Yes, it supports deterministic execution for logic, motion, and process control.
3. Is it compatible with other ControlLogix modules?
Yes, it integrates with digital, analog, motion, and communication modules seamlessly.
4. What are the backplane current requirements?
The module draws 6.31 mA at 5 VDC and 14 mA at 24 VDC.
5. Does the processor provide electrical isolation?
Yes, it provides standard isolation for backplane and module operation.
6. What types of industrial applications is it suited for?
It is ideal for manufacturing automation, process control, and machinery monitoring systems.
7. Can it maintain program data during power loss?
Yes, the non-volatile RAM retains critical programs and data during power interruptions.
8. Is it suitable for mid-range industrial control applications?
Yes, its memory and performance are optimized for mid-range automation systems.
9. Can it handle networked communication tasks?
Yes, it supports integration with ControlLogix communication modules for Ethernet, DeviceNet, or other protocols.
10. Does it support real-time alarm and sequencing operations?
Yes, it can execute control logic for alarms, sequences, and interlocks reliably.
Related Models
| Model | Description | Key Technical Data |
|---|---|---|
| 1756-L55M12 | Logix5555 Processor | 750 KB standard RAM, volatile |
| 1756-L55 | Logix5555 Processor | Mid-range CPU with standard memory |
| 1756-L1M2 | Logix5550 Processor | 1 MB memory, advanced CPU module |
| 1756-L73 | Logix5550 Processor | Expanded memory, high-performance CPU |
| 1756-L71 | Logix5550 Processor | High-performance control module |
| 1756-EN2T | Ethernet Communication Module | Network interface for ControlLogix |
Popular Models
| Model | Product Type | Key Features |
|---|---|---|
| 1756-IF16 | Analog Input Module | 16-channel voltage/current input |
| 1756-OB16 | Digital Output Module | 16-channel output with isolation |
| 1756-IB16 | Digital Input Module | 16-channel isolated input |
| 1756-IV32 | Sourcing Digital Input Module | 32-point digital inputs |
| 1756-IT6I2 | Enhanced Thermocouple Input Module | 6-channel isolated thermocouple inputs |
| 1756-EN2T | Ethernet Communication Module | Network connectivity for ControlLogix |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.
As for the delivery time, when we receive your order requirements, we will arrange for warehouse personnel to test and verify the products. After you place the order, we will send it to you within 24 hours.
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