Yokogawa IS8000 Integrated Software ECU Monitoring and Synchronization Function



Yokogawa IS8000 Integrated Software ECU Monitoring and Synchronization Function

Functional positioning

The ECU monitoring synchronization option (/EM1 or - EM1) is an extended function of the IS8000 integrated software, which can synchronize the waveform measured by waveform measuring instruments (such as DL950, SL2000) with the RAM data obtained by the ECU monitor (such as RAMScope) based on the sampling clock for display, supporting joint data analysis.

Core functions and system configuration

（1） Functional principles and core characteristics

Synchronization principle: The sampling clock generated by the waveform measuring instrument is used as a synchronization signal to be transmitted to the ECU monitor, and the measurement data of both parties is loaded through IS8000 software to achieve synchronous display of waveform and RAM data on the PC side.

Core functions:

|Functional Category | Specific Description|

|Synchronized display | ECU monitor RAM data and waveform measurement instrument waveform data are aligned and displayed based on sampling clock|

|Measurement Control | Supports measurement start/stop and recording of start/stop operations for ECU monitors and measuring instruments|

|Data Storage | Automatically merge RAM data with waveform data and save them as. mf4 format files; Support saving symbol definitions as XML files|

|Offline synchronization | Supports offline loading of saved waveform data (. wdf format) and RAM data (. mdf format), achieving timeline synchronization by aligning the "FirstData" points|

（2） System configuration requirements

Hardware compatibility:

ECU monitor: Supports RAMScope GT122, GT170EXG (RAM measurement module only), the latest compatible models need to refer to Yokogawa official website;

Waveform measuring instruments: Yokogawa DL950, SL2000 (require installation of input modules that match the measurement target);

PC communication interface: It needs to support USB (USBTMC, VISA protocol) or Ethernet (VXI-11, HiSLIP protocol), and a dedicated USB driver needs to be installed (which can be downloaded from) https://tmi.yokogawa.com/library/ Download).

PC system requirements: According to the usage scenario, it can be divided into two types of configurations, as follows:

|Usage scenario | CPU requirements | Memory requirements | SSD requirements | Operating system|

|10G Ethernet communication/trigger DAQ (up to 24 hours continuous recording) | Intel Core i7-10700K and above (4 cores, 8 threads, 4.7 GHz+) | 16 GB and above | 512 GB and above (NVMe SSD recommended, read/write speed 3 GB/s+) | Windows 10 64 bit Windows 11|

|1G Ethernet/USB communication/offline analysis | Intel Core i5-10210U and above (4 cores, 8 threads, 4.2 GHz+) | 8 GB and above | 256 GB and above (read/write speed of 400 MB/s+) | Windows 10 64 bit Windows 11|

Additional requirements: Screen resolution of 1366 × 768 or higher (100% zoom), mouse and printer (optional) are required.

Operation process: from configuration to data management

（1） Hardware connection and software configuration

Hardware connection steps:

Connect the measuring instrument to the ECU monitor: Connect the sampling clock output terminal (CLKO, with GND) of DL950/SL2000 to the synchronization signal input terminal of the ECU monitor;

Connect PC: The measuring instrument is connected to the PC via Ethernet or USB, and the ECU monitor is connected to the PC via USB;

Special note: If the ECU monitor is RAMScope, it is necessary to first configure RAM measurement related settings through RAMScope V/VP and verify the data acquisition function. Close the software before connecting to IS8000.

Software device registration and connection:

|Step | Operation Content|

|1 | Start the IS8000 software, click on "DAQ" to enter the device connection window|

|When connecting for the first time, click "Add", select the communication method (Ethernet/USB), and then click "Search" to search for the device|

|3 | Check the measurement instrument (such as DL950) and ECU monitor (such as RAMScope) in the search results, and click "Register" to complete the registration|

|4. Check the target device in the registered device list and click "Next" to enter the measurement and display settings window|

RAM data measurement channel settings:

Click "Add Channel" in the "Measurement Setting" window and import the symbol definition file (in. a2l format, generated by RAMScope VP) through "Edit>Import File", or manually enter the symbol, address, and data type;

After importing, click "Add" to add the RAM data channel to the channel list. After confirmation, click "Next" to enter DAQ settings.

Time reference synchronization setting:

Check 'Relative time' in the 'Time Base' section of the 'DAQ Setting' window (based on measuring instrument clock synchronization ECU monitor);

Configure the record saving path (default path: C: Users Username Documents YOKOGAWA IS8000), file name rules, etc. Click "OK" to complete the configuration and enter the DAQ control interface.

（2） Measurement Execution and Data Management

Measurement condition setting:

In the "Device Control" panel of the DAQ control interface, select the measuring instrument and ECU monitor respectively, and configure parameters (such as DL950 sampling rate, trigger mode, and RAMScope measurement cycle);

Key synchronization requirements: The measurement cycle of the ECU monitor should match the pulse frequency of the measuring instrument (such as DL950 pulse rate of 1 kHz corresponding to RAMScope cycle of 1 ms), and the "External Clock" should be turned on to synchronize the external clock.

Measurement and recording operations:

|Operation steps | Function description|

|1 | Click on "Monitor Start": Start measurement (only monitoring, no data recording)|

|2 | Click on "Record Start": Start recording (if monitoring is not started, measurement and recording will be synchronized)|

|3 | Click "Record Stop": Stop recording (measurement continues, monitoring can continue)|

|4 | Click "Monitor Stop": Stop the measurement (if the recording is not stopped, the measurement and recording will be stopped synchronously)|

Caution: Do not operate the measuring instrument panel during the recording period; PC needs to disable standby/sleep mode to avoid software interruption; When there is a connection error, the measuring instrument needs to be restarted.

Data saving and loading:

Data saving: After stopping recording/measurement, the data is automatically saved as a. mf4 format file. If "Automatically open the last saved file" is checked, the file will be automatically opened after saving;

Data loading: Refer to the IS8000 user manual (IM IS8000-01EN), open the saved. mf4 file (or. wdf and. mdf files in offline scenarios) in the software, and the software will automatically align the timeline to display the data.

（3） Offline synchronization operation (Appendix supplement)

For scenarios without real-time connectivity requirements, the offline synchronization process is as follows:

Connect the measuring instrument and ECU monitor according to the hardware connection requirements, and disconnect from the PC;

Configure measuring instruments separately (set external sampling clock, pulse rate, trigger mode) and ECU monitors (synchronize external clock, monitoring time needs to be longer than measuring instruments);

Start the ECU monitor (enter clock standby) → Press the "START" button on the measuring instrument (output sampling clock, ECU starts to acquire RAM data) → Press the "STOP" button on the measuring instrument (stop clock and RAM data acquisition) → Stop the ECU monitor;

Save the measurement instrument data (in. wdf format) and ECU data (in. mdf format) separately, load the two files in IS8000, and synchronize the software display by aligning the "FirstData" points.

Usage restrictions and precautions

License restriction: A single license supports the use of this option on two PCs simultaneously; It is prohibited to connect multiple PCs to the same measuring instrument at the same time.

Communication limitation: When controlling measuring instruments, only one communication interface (Ethernet/USB) is supported at a time; Prohibit the simultaneous use of multiple interfaces.

Operation taboos: It is prohibited to operate the measuring instrument panel during data recording; The PC needs to disable standby/sleep mode, otherwise it may cause software interruption.

Fault handling: If there is a connection error, prioritize restarting the measuring instrument; If synchronization is abnormal, check the matching between the sampling clock connection and parameters (such as pulse rate and measurement period).