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Allen Bradley 1756-L55M16 ControlLogix Controller with 7.5 MB RAM

Allen Bradley 1756-L55M16 ControlLogix Controller with 7.5 MB RAM

7.5 MB RAM ControlLogix Controller

0.08 milliseconds Program Scan Time Processor Module

Asymmetric Dual-CPU Architecture 1756-L55M16

Place of Origin:

USA

Brand Name:

Allen Bradley

Model Number:

1756-L55M16

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Product Details
Module Type:
Processor Module
RAM:
7.5 MB
Program Scan Time:
0.08 Milliseconds
Backplane Current (5Volts DC):
1.23 Amps
Maximum Analog I-O:
4,000 Input, 2,000 Output
Vibration:
10-500 Hertz
Shipping:
TNT, DHL, FedEx, EMS, UPS
Packaging:
Original New Packaging
Highlight:

7.5 MB RAM ControlLogix Controller

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0.08 milliseconds Program Scan Time Processor Module

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Asymmetric Dual-CPU Architecture 1756-L55M16

Payment & Shipping Terms
Minimum Order Quantity
1
Price
66USD
Packaging Details
Brand new and original
Delivery Time
2-3 work days
Payment Terms
T/T
Supply Ability
in stock
Product Description
Allen Bradley 1756-L55M16 ControlLogix Controller
Allen Bradley 1756-L55M16 ControlLogix Controller with 7.5 MB RAM 0
The 1756-L55M16 stands as a high-capacity cornerstone of the Logix5000 platform, uniquely utilizing an asymmetric dual-CPU architecture to optimize scan times. By segregating mission-critical application code execution on the primary Logix processor from the heavy lifting of I/O backplane traffic on the secondary processor, the module eliminates typical processing bottlenecks. With a substantial 7.5 MB of user memory for logic and a dedicated 208 KB buffer for I/O-specific data, this controller is engineered for complex, data-heavy environments where maintaining a consistent RPI (Requested Packet Interval) is non-negotiable.
System integration is handled via the onboard serial port—utilizing the 1756-CP3 interface for local workstation hooks—while broader plant-floor connectivity is bridged through EtherNet/IP, ControlNet, or DeviceNet bridges. A standout feature is its native support for "Producer/Consumer" tag technology; this allows the L55M16 to cast system-shared tags across the network without the overhead of traditional message instructions, provided a dedicated connection is established for each endpoint. This multitasking capability ensures that time-sliced operations, ranging from motion synchronization to high-level logic programs, coexist without compromising the integrity of executable routines.
Allen Bradley 1756-L55M16 ControlLogix Controller with 7.5 MB RAM 1
Installation Procedure
  1. Cycle power to the chassis
  2. Make sure the OK status indicator is solid red, noting that if the OK status indicator is not solid red, the controller does not require replacement
  3. Match the catalog numbers of the controllers and memory boards, noting that 1756-Mxxx is the catalog number of the memory board, if one is installed, and 1756-Lxxx is the catalog number of the controller, as shown in the figure
  4. Insert the battery
  5. Insert the key, and turn it to the PROG position
  6. Insert the controller into the chassis
  7. Use ControlFlash software to update the firmware of the controller
  8. Download the RSLogix 5000 project to the controller
Allen Bradley 1756-L55M16 ControlLogix Controller with 7.5 MB RAM 2 
Allen Bradley 1756-L55M16 ControlLogix Controller with 7.5 MB RAM 3
Managing a plant with legacy systems? Amikon Limited provides the technical bridge between aging infrastructure and modern reliability. Based in Xiamen, we are a premier source for discontinued PLC & DCS components, helping system integrators avoid costly hardware upgrades.
Why Engineers Trust Amikon
  • Verified Inventory: Direct access to End-of-Life (EOL) industrial parts
  • Competitive Edge: Pricing models designed to slash MRO procurement costs
  • Sustainability: We specialize in surplus industrial equipment liquidation
  • Response Speed: Real-time quotes for mission-critical spare parts
Key Brand Specialization
  • Triconex / Bently Nevada (TSI & SIS Systems)
  • Honeywell / Foxboro (Process Control Hardware)
  • GE / Allen-Bradley (Turbine & Logic Controllers)
  • Bachmann / ICS Triplex (Niche Industrial Modules)
Allen Bradley 1756-L55M16 ControlLogix Controller with 7.5 MB RAM 4
Company Capabilities
  • Core Product Scope: DCS System components, PLC CPUs, and Industrial Drives
  • Condition: Guaranteed Original & Factory-Sealed
  • Replacement Bond: Standard 1-Year Warranty on all electronic hardware
  • Logistics Flow: Global Express Dispatch (3-5 days delivery window)
  • Expertise: Two decades of excellence in Industrial Automation Sourcing
  • Transparency: Pre-shipment verification and official regulatory compliance
Fast-Track Inquiry
Sales Department sales@amikon.cn
Phone/WhatsApp +86 180 2077 6792
Contact Person Miya Zheng - Senior Sales Manager

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