Recent Trends in Evaluation of DLMS Meters as per Indian Companion Specification

The requirement of an Open Protocol for energy metering was a long awaited and most required standard for bringing in homogeneity among various makes of meters deployed in the fi eld by the Power utilities. The openness of the standard will make the Automatic Meter Reading (AMR) and interoperability into reality. This open protocol based on IEC-62056 (DLMS/COSEM) helps to overcome most of the challenges for data acquisition for the utilities. The Indian Companion Specifi cation (ICS) was evolved by BIS as an Indian Standard IS-15959 which inherits the IEC-62056 series of standards. This paper brings out the advantages of ICS and tests being performed for compliance.