Event Trigger (L6-OPT-EVT) option for LMG600
Steady-state measurements are making up a considerable portion of power analysers’ everyday use scenarios. Still, it is often the unpredictable events that give design engineers a headache. Reliable detection of transient conditions imposes heavy demands on the instruments used. Whenever supreme accuracy, low measurement ranges, direct current measurement and robust electrical isolation are required, oscilloscopes and transient recorders have to cede to power analysers.
ZES ZIMMER’s LMG600 series power analysers can be equipped with the Event Trigger software option (L6-OPT-EVT) to monitor voltage and current signals for unique conditions. Those conditions can be characterized by upper and lower bounds of the sample values, which can also be combined to define signal windows for triggering. After trigger conditions have been set, ZES ZIMMER’s TriggerView offers a convenient way to verify the correctness of the settings. TriggerView visualizes the effects of settings like sync filters and level or hysteresis and displays the resulting trigger signal.
Once the defined conditions are violated for the minimum duration chosen by the customer, recording is activated. The length of the recording can be chosen by the user, with 16 tracks at 4M each available for storage. The recorded samples are available graphically on the LMG600’s scope in a separate tab, or numerically via the data interfaces for further analysis. Using the event trigger function has no impact on cycle based power measurements carried out in parallel on the same channel.
CAN-Bus interface (L6-OPT-CAN) for LMG600
Many electronic systems now use the serial bus system CAN (Controller Area Network) for data exchange. This is due to the immunity to interferences, real-time capability and cost-effective integration. In particular in the automotive industry as well as automation are CAN-Bus systems now standard.
In matters of power measurement, power analyzer are used in the development of electrically powered vehicles, to measure the electrical power and efficiency of the entire electric drive line. But how can these measuring devices be integrated into the vehicles CAN network? Usually current power analyzers, which can be used for precise measurement of high electrical power, are equipped with USB, RS232 and / or Ethernet port. Say, due to different communication protocols, unifying the data from all systems (actuators, sensors) comes along with an additional software effort and expenditure of time. Moreover, additional costs arise with the use of substitution technologies.
The ZES ZIMMER Power Analyzer series LMG600 can now be equipped with a CAN-Bus interface and thus make data communication in accordance with ISO 11898-2 High-speed CAN-Bus possible. This allows an additional way of power measurement within complex sensor groups. Hence, the aforementioned problems will be avoided. It makes these power analyzers totally unique in the market in offering precise power analysis in the automation and automobile industry with fast and standardized integration for data communication via CAN. The power analyzer act as a sensor in a sensor or actuator network and is able to provide multiple measurement values on different CAN IDs. It will continuously send the measurement values according to the given measurement cycle. Additionally, incoming remote transmission requests (RTR) inquiring about this CAN ID will be answered with the latest measurement value available for this slot.
