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
,0.08 milliseconds Program Scan Time Processor Module
,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
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Product Description
Allen Bradley 1756-L55M16 ControlLogix Controller
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.
Installation Procedure
- Cycle power to the chassis
- 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
- 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
- Insert the battery
- Insert the key, and turn it to the PROG position
- Insert the controller into the chassis
- Use ControlFlash software to update the firmware of the controller
- Download the RSLogix 5000 project to the controller
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)
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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