Lock Manager Interface: Power Consumption <3W

Q: What is the primary function of a Lock Manager Interface?

It controls access to shared resources in industrial systems by managing locks to prevent multiple processes from conflicting during simultaneous operations.

Q: How does it prevent deadlocks in industrial environments?

Through algorithms like timeout mechanisms, priority-based scheduling, and deadlock detection protocols that automatically release or reassign locks when conflicts are detected.

Q: Can it integrate with existing PLC systems?

Yes, it supports standard industrial protocols like Modbus, Profinet, and EtherCAT for seamless integration with most PLC and SCADA systems.

Component Specifications

Definition

The Lock Manager Interface is a hardware/software component within industrial transaction management systems that implements concurrency control mechanisms. It manages lock acquisition, release, and conflict resolution for shared resources in multi-process industrial environments, ensuring data consistency and preventing race conditions during simultaneous operations.

Working Principle

Operates on a request-response protocol where processes request locks on resources. The interface maintains a lock table, grants exclusive or shared locks based on priority and conflict detection, implements timeout mechanisms, and handles deadlock prevention through algorithms like wait-die or wound-wait. It coordinates with the transaction manager to ensure ACID properties (Atomicity, Consistency, Isolation, Durability) are maintained.

Materials

Typically consists of: PCB substrate (FR-4 grade), microcontroller (ARM Cortex-M series or industrial-grade PLC processor), memory chips (SRAM/Flash), communication interfaces (RS-485, Ethernet, CAN bus), and protective housing (IP65-rated aluminum alloy or industrial plastic).

Technical Parameters

Parameter	Typical range	Notes & selection driver
Response Time	<5ms
Lock Granularity	Row-level to Table-level
Operating Voltage	24V DC ±10%
Power Consumption	<3W
Max Concurrent Locks	256
Operating Temperature	-20°C to +70°C
Communication Protocols	Modbus TCP, Profinet, EtherCAT

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 13849-1, IEC 61131-3, IEC 61508

Parent Products

This component is used in the following industrial products

Transaction Manager

A database component that manages transaction operations, ensuring data consistency and integrity.

View Product Details

Engineering Analysis

Risks & Mitigation

Deadlock situations
Single point of failure
Communication latency affecting performance
Incompatibility with legacy systems

FMEA Triads

Trigger: Power supply fluctuation
Failure: Interface reset causing lock release
Mitigation: Implement UPS backup and voltage regulation circuits

Trigger: Network communication failure
Failure: Lock requests timing out
Mitigation: Redundant communication paths and heartbeat monitoring

Trigger: Memory corruption
Failure: Lost lock table data
Mitigation: ECC memory and periodic backup to non-volatile storage

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.1% timing accuracy, <0.01% error rate in lock operations

Test Method

IEC 61131-2 compliance testing, stress testing with simulated concurrent transactions, environmental testing per IEC 60068-2 standards

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

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Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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Manufacturers of Lock Manager Interface

Manufacturer profiles associated with Lock Manager Interface.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of a Lock Manager Interface?