WAGO 750-494 Series Manual

Contents

WAGO-I/O-SYSTEM 750 Process Image 49750-494 3-Phase Power Measurement ModuleManualVersion 1.2.05.4 Process Image DescriptionsThe I/O module provides a large number of measured values for a three-phasesupply network. These measured values are organized into collections which canbe selected by specifying the COL_ID. The following collections are available:COL_ID = 007 – DC measured valuesAll measured values provided by the I/O module involved with DC measurement.COL_ID = 009 – AC measured valuesAll measured values provided by the I/O module involved with AC measurement.COL_ID = 020 – Harmonics analysis L1All measured values provided by the I/O module involved with the harmonicsanalysis for Phase L1.COL_ID = 021 – Harmonics analysis L2All measured values provided by the I/O module involved with the harmonicsanalysis for Phase L2.COL_ID = 022 – Harmonics analysis L3All measured values provided by the I/O module involved with the harmonicsanalysis for Phase L3.The individual measured values are identified within a collection by specifying aMET_ID. The following section "Collections of Measured Value " contains adefinition of all the measured value collections with the corresponding MET_IDs,measured value data types and scaling factors in the process image.Example 1: COL_ID = 007, MET_ID = 004Measured value: DC voltage L1-NData type in the PI: UInt32Scaling factor PI 750-494: 0.01V / LSBScaling factor PI 750-494/000-001: 0.01V / LSBExample 2: COL_ID = 009, MET_ID = 003Measured value: RMS value, current L3Data type in the PI: UInt32Scaling factor PI 750-494: 0.0001A / LSBScaling factor PI 750-494/000-001: 0.0005A / LSB