YASKAWA VIPA System SLIO Manual

Contents

YASKAWA VIPA System SLIO Manual Manual pdf 309 page image

Reset energy counters after installation!As soon as the module is supplied by the DC 24V power section supply,the measurement is started and the counting of the energy counters iscontinued with the retentive stored counter values. The measurement isnot interrupted by STOP or RESET of the CPU respectively the bus cou-pler. After installing the module the energy counters should be reset byCMD-Frame.Ä Chapter 3.27.7.2.5 ‘CMD Frame’ on page 3273.27.3 Basics3.27.3.1 TermsA measurand is a physical quantity that can be measured such as current, voltage ortemperature.Ä Chapter 3.27.6 ‘Measurands’ on page 316A measured value is a value of a measurand, which is determined by measurement or bycalculation.In the module each measurand one ID is assigned. The access to the measured value ofa measurand happens by means of the corresponding ID.Ä Chapter 3.27.6 ‘Measur-ands’ on page 316As soon as the module is supplied by the DC 24V power section supply, the measure-ment is started and the counting of the energy counters is continued with the retentivestored counter values. The measured values of all the measurands are stored in themodule with one record set ID DS-ID. The following must be observed:n All measured values with the same DS-ID come from the same measurement and areconsistent.n By specifying the DS-ID you can address the individual measured values of the samemeasurement.n The DS-ID covers the values 1 ... 15. The start value can freely be selected.n To refresh the measured values the DS-ID is to be incremented by 1. The value 15must be followed by 1.n If the DS-ID is incremented and there is still no new value available, the current valueis returned with an error.Ä ‘Status communication’ on page 319n DS-ID = 0 - Auto increment mode– With DS-ID = 0 there is a request with auto increment mode. Here the modulealways returns the current measured value. As soon as a new measured value isavailable, here the DS-ID is incremented by one within the values 1 ... 15. If thereis no new measured value available, the DS-ID is not changed and a error mes-sage is returned.Ä ‘Status communication’ on page 319n The uniqueness of a measured value always consists of the ID of the measurand andthe DS-ID.MeasurandMeasured valueIDDS-IDVIPA System SLIO Analog Input031-1PA00 - AI1x 3Ph 230/400V 1A > BasicsHB300 | SM-AIO | | en | 17-05 309