ADLINK MCM-204 Independent Ethernet DAQ User Manual

ADLINK MCM-204 Independent Ethernet DAQ User Manual

Product positioning and core advantages

1. Product Definition

Independent Ethernet DAQ acquisition module, ARM embedded architecture, designed specifically for distributed machine vibration monitoring. It can perform edge preprocessing such as FFT and effective value of raw vibration data on site, greatly reducing upstream bandwidth and backend server computing pressure; Automatically resume collection tasks after power failure and restart, suitable for small installation spaces in control cabinets.

2. Core application scenarios

Equipment vibration detection, industrial noise collection, distributed equipment status monitoring, acoustic measurement.

3. Core functional highlights

1. 4-channel 24 bit synchronous BNC analog input, supporting 4mA IEPE piezoelectric sensor excitation;

2. Built in edge algorithm preprocessing: FFT spectrum and local calculation of total vibration amplitude (RMS/peak/peak to peak);

3. Four standardized data output schemes: Web visualization, REST timed polling, streaming SDK continuous raw data, TCP active push;

4. Dual gigabit Ethernet ports support device cascading, simplifying on-site wiring;

5. Comes with a web console, allowing for quick configuration of collection tasks with zero programming;

6. Support user-defined C/C++filtering algorithms, upload modules to run locally;

7. Isolation type 4-channel programmable DI/DO, compatible with tachometer and external trigger;

8. Wide voltage DC power supply, DIN rail/wall mounted dual installation, complete industrial EMC safety certification.

Complete hardware specifications and parameters

2.1 Communication between main control and storage

-Processor: ARM Cortex-A9 1.0GHz

-Memory: 1GB DDR3; Storage: 4GB eMMC flash memory

-Network port: 2 Gigabit RJ45, same MAC, supports cascading, default static IP ` 169.254.1.1`

-USB: 2xUSB2.0, only compatible with WiFi wireless network cards

-Power supply: 9-30VDC wide voltage, maximum power consumption of 8.8W, optional 40W matching power adapter

2.2 Analog Input (AI, Core Acquisition Performance)

1. Channel: 4-channel BNC pseudo differential synchronous acquisition

2. Resolution: 24 bit Sigma Delta ADC

3. Sampling rate: 1kS/s~128kS/s, adjustable in multiple levels

4. Input range: ± 10V, ± 1.25V Software switching

5. Coupling mode: AC/DC software optional, AC cut-off 0.4Hz (-3dB)

6. IEPE incentive: Each channel has an independent 4mA constant current, 24V compliant voltage, and is compatible with acceleration sensors

7. Electrical accuracy: offset error ± 0.1mV, gain error ± 0.05% FSR; 1kHz dynamic range 95dB, THD-100dB

8. Anti interference: Channel crosstalk -100dB, ± 50V channel overvoltage protection, analog ground isolated from the casing by 1.5kV

9. Bandwidth: -3dB bandwidth=0.43 x sampling rate, amplitude flatness of 10-10kHz ± 0.01dB

10. Trigger source: software trigger, analog level trigger, digital edge trigger, panel button trigger

2.3 Isolated digital I/O (4-channel terminal)

-4-channel independent programmable DI/DO, single ended TTL level; DI 0 dedicated tachometer (0.6Hz~500kHz)

-DI level: high ≥ 2V, low ≤ 0.8V; DO open leakage output, full channel ± 50V overvoltage protection

-Reuse function: external digital acquisition trigger, static switch input/output

2.4 Mechanical dimensions and installation

-Appearance: 110.5 (length) x 40 (width) x 126.5 (height) mm, metal IP30 shell

-Installation: Standard DIN rail bracket; Optional wall mounted kit

-Interface layout: Front panel 4BNC+IO terminal+temperature sensing terminal; Top network port/USB/power/reset button

2.5 Industrial environment tolerance

-Working temperature: 0~50 ℃; Storage -20~70 ℃

-Vibration: 5Grms 5~500Hz three-axis; Impact 100G 11ms half sine

-EMC/Safety: EN61000 industrial standard, FCC Class A; ESD 4kV contact/8kV air, surge, electrical pulse, RF anti-interference all pass; IEC61010 Measurement Equipment Safety Certification

Layout Description of I/O Interface for the Whole Machine

1. Front panel (signal side)

1. 4-channel BNC (AI0~AI3): pseudo differential vibration signal input, supporting IEPE

2. 4pin spring terminal DIO: DIO0~DIO3, DGND digital ground, AGND analog ground

3. 2pin temperature sensing terminal: equipped with a 3-meter LMT01 temperature probe, measuring -50~150 ℃

4. Four status LEDs: PWR power red, SYS system, I/O acquisition, USB device

2. Top surface (communication power supply side)

1. 3-pin DC power terminal: V+, ground, V -, 9-30VDC input

2. Dual Gigabit Ethernet ports LAN1/LAN2: Device daisy chain cascading, ring network prohibited

3. Dual USB 2.0 A ports: WiFi network card expansion only

4. Reset hole: Long press for 3 seconds to restore factory settings, configurable to retain network parameters

5. Fn function button: Local manual collection trigger

Unpacking, wiring, and power on process

1. Standard accessories

MCM-204 host, DIN rail bracket, 3-meter temperature sensor, quick start guide; Wall mounted kit and power supply are optional accessories.

2. Wiring specifications

1. Simulation: BNC directly connected to IEPE accelerometer;

2. Number: DI/DO access terminal, distinguishing between AGND analog ground and DGND digital ground;

3. Network: CAT5 Ethernet cable, single device directly connected to PC, multi device daisy chain cascading (ring networking is prohibited);

4. Temperature sensing: Connect a dedicated two-wire probe to the temperature sensing terminal;

5. Power supply: Disconnect and plug in the terminals, unlock the spring terminals with a screwdriver.

3. Power on and status judgment

-PWR always red=power supply is normal; SYS starts flashing first, then turns green after 35 seconds=system ready;

-I/O flashing=collecting simulated data; USB flash recognition peripheral.

4. Four major system integration usage scenarios

1. Web Console (Debugging/Portable DAQ): Browser visualization configuration, real-time JSON data viewing, no programming required;

2. REST API (timed polling): Preprocess data in JSON format (valid values/spectrum), suitable for minute level periodic inspections, providing Python/C #/JS examples;

3. Streaming SDK (Continuous Raw Data Stream): bypass preprocessing and directly transmit 24 bit raw ADC data, DDS protocol, suitable for high-precision offline analysis, C/C++development package;

4. TCP Socket (Passive Reporting): The module acts as a client and actively pushes data to the specified server IP port after generation, without polling overhead.

Web Console Full Functionality

Default login address` http://169.254.1.1 `Account 'administrator', password 'Adlink6166', best compatible with Chrome browser. All menu functions:

1. System information: firmware version, serial number, runtime, network port IP, real-time channel status;

2. Peripheral management: DI/DO mode switching, real-time temperature reading, supports automatic refresh;

3. Data history: Filter local storage data by time/channel and clear it with one click;

4. Mission management: Start and stop collection tasks, automatically save task configurations when powered off;

5. Account permissions: Add visitor/administrator accounts, verify password complexity;

6. System settings

-Network: Static/DHCP, can choose to restore the network configuration when leaving the factory;

-Time zone and NTP server synchronization;

-Data storage: Optional 300MB flash persistent data storage (default only memory);

-Automatic calibration of equipment; Firmware upgrade; Upload custom algorithm `. so ` library;

7. TCP client configuration: Multiple sets of server IP/port binding specified collection channels, automatic reconnection;

8. Collecting task parameter configuration (Device Config)

-Global: differential/pseudo differential, sampling rate, number of single sampling points, collection interval, total number of cycles (0=permanent collection);

-Single channel independent switch: AC/DC coupling, ± 10/± 1.25V range, sensor type (accelerometer), sensitivity, IEPE switch;

-Optional data output types: raw ADC, voltage, FFT power spectrum, multiple vibration total values (g-RMS/g-Peak/displacement peak to peak, etc.), custom algorithm output;

-Threshold alarm rules: upper and lower limits, alarm level configuration;

9. Real time data preview: JSON structured data is displayed online and supports automatic refresh;

10. Import and export task configuration files (JSON Profile), batch copy device parameters.

DAQ acquisition mode and custom algorithm

6.1 Comparison of Three Data Transmission Architectures

1. REST polling: Lightweight, low bandwidth, only outputs preprocessed feature values, suitable for online device health monitoring;

2. TCP proactive push: The server does not require polling and is event driven for reporting;

3. Streaming DDS streaming: lossless raw sampling data, high bandwidth consumption, dedicated for deep analysis of laboratory faults.

6.2 Development process of custom filtering algorithm

The module supports local operation of user developed vibration analysis algorithms. Steps:

1. Download the Linaro cross compilation toolchain for ARM Linux;

2. Obtain official algorithm examples (RMS calculation template C/C++project);

3. Cross compile to generate a 'customAlgo. so' dynamic library;

4. Upload library files through the web console;

5. Select "Customization" as the data type for the collection channel and pass in the algorithm parameters;

6. Real time page reading of custom calculation results.

Calibration, safety and environmental regulations

1. Calibration mechanism

Factory pre calibration, EEPROM stores calibration parameters; One click automatic calibration on the web, without the need for external standard sources, suitable for long-term compensation of temperature drift.

2. Safety operation standards

-Disassembly and wiring must be disconnected from the power supply; The shell is at high temperature and should not be touched during operation;

-Built in lithium battery, there is a risk of explosion if the model is replaced incorrectly, and it will be scrapped and recycled as electronic waste;

-Only authorized engineers are authorized to dismantle and repair the machine. If there is water ingress, falling, or overheating, it needs to be returned to the factory for inspection.

3. Environmental Protection and Regulations

Compliant with EU RoHS and WEEE; Accompanied by California 65 hazardous substance warning, do not mix with household waste for disposal.