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China factory - AMIKON LIMITED

AMIKON LIMITED

  • China,Xiamen ,Fujian
  • Verified Supplier
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China Allen Bradley 1756-L61S Controller Module with 2 MB User Memory 128K Digital I-O
China Allen Bradley 1756-L61S Controller Module with 2 MB User Memory 128K Digital I-O

  1. China Allen Bradley 1756-L61S Controller Module with 2 MB User Memory 128K Digital I-O
  2. China Allen Bradley 1756-L61S Controller Module with 2 MB User Memory 128K Digital I-O
  3. China Allen Bradley 1756-L61S Controller Module with 2 MB User Memory 128K Digital I-O

Allen Bradley 1756-L61S Controller Module with 2 MB User Memory 128K Digital I-O

  1. MOQ： 1
  2. Price： 66USD
  3. Get Latest Price
Payment Terms T/T
Supply Ability in stock
Delivery Time 2-3 work days
Packaging Details Brand new and original
I-O Memory 478 KB
User Memory 2 MB
Maximum Analog I-O 4,000
Maximum Digital I-O 128,000
Current Draw (5.1 Volts DC) 1200 Miliamperes
Current Draw (24 Volts DC) 14 Miliamperes
Power Dissipation 3.5 Watts
Isolation Voltage 30 Volts Continuous
Brand Name Allen Bradley
Model Number 1756-L61S
Place of Origin USA

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  1. Product Details
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Product Specification

Payment Terms T/T Supply Ability in stock
Delivery Time 2-3 work days Packaging Details Brand new and original
I-O Memory 478 KB User Memory 2 MB
Maximum Analog I-O 4,000 Maximum Digital I-O 128,000
Current Draw (5.1 Volts DC) 1200 Miliamperes Current Draw (24 Volts DC) 14 Miliamperes
Power Dissipation 3.5 Watts Isolation Voltage 30 Volts Continuous
Brand Name Allen Bradley Model Number 1756-L61S
Place of Origin USA
High Light 2 MB User Memory Controller Module ，128K Digital I-O 1756-L61S ，Safety Partner Integration Allen Bradley
Allen Bradley 1756-L61S Controller Module Technical Specifications
Allen Bradley 1756-L61S Controller Module
Memory Partitioning: Logic vs. I/O Overhead
Why is the 478 KB I/O memory separated from the 2 MB user memory in the L61S?
This design ensures determinism in safety-critical applications. The 478 KB pool manages background Producer/Consumer traffic and I/O image updates, preventing heavy network activity from interfering with CPU cycles dedicated to safety-critical logic. In SIL3 configurations, the 2 MB user memory is exclusively reserved for logic execution and Safety Signature overhead to maintain synchronization with the 1756-LSP Safety Partner.
24V DC Rail Power Consumption
What is the 14 mA current draw on the 24V DC rail actually used for?
This minimal power consumption supports critical interface components. The 14 mA draw powers opto-isolators for the RS-232 serial port and internal ASIC logic gates. While rack logic operates on 5.1V, loss of the 24V rail due to power supply failure will immediately disable local diagnostic ports and serial communications.
Safety Partner (LSP) Integration
Can the L61S operate as a standalone controller without the Safety Partner?
For standard logic applications: Yes. For Safety (SIL3) applications: No. The L61S requires a 1756-LSP Safety Partner in the adjacent slot. The 2 MB user memory is mirrored and continuously cross-checked by the LSP module. Any discrepancy in data signatures between the two modules triggers an immediate Safety State shutdown.
I/O Capacity and Network Performance
With 128,000 I/O points, will the safety response time degrade?
Performance degradation can occur if the Requested Packet Interval (RPI) is configured too aggressively. While the L61S supports addressing up to 128,000 I/O points, the EtherNet/IP bridge typically becomes the primary bottleneck. For large-scale I/O configurations, implementing Unicast communication for safety tags is essential to minimize network jitter and prevent nuisance safety trips.
Industrial Automation Control System
Industrial Automation Support Services
In industrial automation environments where downtime costs thousands per hour, Amikon provides comprehensive global backup solutions for PLC, HMI, and Distributed Control System (DCS) components.
Partnership Advantages
  • Specialized Sourcing: Expert procurement of hard-to-find and obsolete electronic components
  • Quality Assurance: Genuine, high-quality components verified through rigorous quality control
  • Reliable Logistics: Precision tracking systems ensure timely delivery and operational continuity
Verified Customer Experience
"Processing was rapid; their customer service stayed patient through our complex compliance checks. The tracking was accurate, and the delivery was truly worry-free."
Industrial Automation Components
Critical System Recovery Solutions
When essential PLC systems fail and OEM lead times extend for months, Amikon provides rapid production line recovery through specialized sourcing of high-demand industrial automation components.
Obsolete Component Specialist
Comprehensive inventory of over 90,000 discontinued and End of Life items, including legacy DCS modules and rare HMI panels
Cost-Effective Procurement
Maintenance budget optimization with pricing approximately 15% below market average
Factory-Sealed Integrity
Exclusive supply of brand new, original hardware with 365-day performance warranty
Precision Logistics
Double-layer packaging (anti-static + reinforced carton) ensures component integrity via DHL or FedEx
Secure Your Quote
Miya Zheng | Senior Sales Manager
WhatsApp/Cell: +86 180 2077 6792
Compatible Allen Bradley Components
Compatible Allen Bradley Components
Manufacturer Model Manufacturer Model
Allen Bradley 1772-LN2 Allen Bradley 80190-380-02-R
Allen Bradley 1783-BMS10CL Allen Bradley 80190-480-01-R
Allen Bradley 1783-ETAP Allen Bradley 80190-520-01-R
Allen Bradley 1785-L30B Allen Bradley 80190-600-01-R
Allen Bradley 1785-L60B/C Allen Bradley 1771-NOC
Allen Bradley 1794-AENTR Allen Bradley 81003-438-51-R
Allen Bradley 1794-IB16 Allen Bradley 1756-EN2TSC
Allen Bradley 1794-IE8H Allen Bradley 1771-IG
Allen Bradley 1794-OB16P Allen Bradley 1747-L514
Allen Bradley 1797-IE8NF Allen Bradley 1746-IB32

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Trading Company

  • Year Established:

    2004

  • Total Annual:

    85682000-125000000

  • Employee Number:

    70~80

  • Ecer Certification：

    Verified Supplier

Company Profile Amikon Limited specializes in the global supply of industrial automation module spare parts.The company focuses on well-known international brands covering DCS systems, robot control systems, and large-scale servo control systems. Product scope includes: ➢Distributed Control Syste... Company Profile Amikon Limited specializes in the global supply of industrial automation module spare parts.The company focuses on well-known international brands covering DCS systems, robot control systems, and large-scale servo control systems. Product scope includes: ➢Distributed Control Syste...

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  • AMIKON LIMITED
  • 32D units,GuoMao Building No 388 Hubin South Road Siming district Xiamen, Fujian China
  • https://www.dcscontroller.com/

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