DLMS COSEM Metering Testing Tool

ASEDLMS_Product_Image_IOASEDLMS Test Set is a Windows based DLMS COSEM Metering Testing tool with DLMS Client driver. Meter Test Set is the ideal protocol testing tool for advanced DLMS meter testing and troubleshooting during meter installation, commissioning and during operations. With extensive DLMS  COSEM object support, user friendly GUI and strong industry adoption ASEDLMS Testset is a tool every field technician and engineer should have.

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ASEDLMS Test Set is a Windows-based DLMS COSEM Protocol Simulator enabling users to communicate with DLMS COSEM servers (meter/gateway/data concentrator) for verification, troubleshooting, and data acquisition. The ASEDLMS DLMS COSEM protocol testset conforms to the latest DLMS-UA colored books and supports various communication media such as serial, optical, ethernet, modems.

The Graphical User Interface of DLMS COSEM protocol simulator allows users to configure meters and association properties after which the user can download object lists from the meter and perform the read/write of objects of interest.


DLMS COSEM Protocol Simulator exposes an Object list window that allows users to view/verify the DLMS COSEM OBIS code, DLMS COSEM Interface class, DLMS COSEM version, and DLMS COSEM data type/access rights of each attribute and method returned by the meter. Detailed DLMS COSEM object list can be saved to CSV file to be used as test evidence or for future reference or sharing with meter manufacturer or other interested third parties.



The DLMS COSEM Protocol Testset supports recent advances in the DLMS COSEM standards such as support for unsolicited Push messages. Push Analyzer window allows users to constantly monitor Data notification requests pushed by the meter. Each Push message is decoded, and the capture objects’ values are displayed with a header containing metadata generated by meter Test Set to identify the source of message and timestamp.


All DLMS COSEM profile objects such as Load Profile, Billing Profile, Event Logs, Instantaneous Snapshot Profile, Power Quality Logs, etc. are displayed in a user-friendly manner with the chronological order of entries and overlaid meta-data (such as a number of entries-in-use).

The DLMS COSEM Protocol simulator and DLMS COSEM Protocol Testset supports read using Selective Access by range as well as by entry and the read buffer can be saved to CSV file. Methods with access rights can be executed as well as from this same window.


DLMS COSEM Protocol Simulator Image transfer provides a user-friendly mechanism for meter firmware upgrade. The Test Set isolates the user from the complete state machine and procedure detailed in DLMS COSEM Bluebook for image transfer. This is automatically performed by the DLMS COSEM Protocol Testset with the user just providing the firmware file and image identifier.



The DLMS COSEM Protocol Testset Global groups feature allow to group multiple objects of different meters and watch them in a single window


The DLMS COSEM Protocol Testset supports the cybersecurity enhancements with support for Cipher suites 0 and 1 introduced in the DLMS COSEM standards. DLMS COSEM Key Transfer allows changing meters authentication keys / ciphering keys with AES Key wrap algorithm support.


DLMS COSEM Protocol testset Communication Types

  • RS232/RS485 (Direct HDLC)
  • Optical (Direct HDLC / IEC 62056-21 Mode E)
  • Ethernet (IPv4 / IPv6)
  • Cellular modem (IPv4 / IPv6)
  • PLC/RF modems supporting IPv4 / IPv6
  • HDLC serial over IP

DLMS COSEM Protocol Simulator / Test Set Application Context

  • LN without ciphering
  • SN without ciphering
  • LN with ciphering
  • SN with ciphering

DLMS COSEM Protocol Testset Authentication

  • Lowest
  • Low (LLS)
  • High (2(AES128 ECB), 3(MD5), 4(SHA1), 5(AES GMAC), 6(SHA256))

DLMS COSEM Protocol Simulator / Test Set Conformance Block

  • Get
  • Get with block transfer
  • Set
  • Set with block transfer
  • Action
  • General Protection
  • General Block Transfer
  • Data Notification
  • Read
  • Write
  • Selective Access
  • Parameterized Access
  • Event Notification

DLMS COSEM Protocol Testset OBIS Codes

  • Support all range of OBIS codes (Standard, Manufacturer, Country, Utility)
  • Automatically resolve OBIS code to user understandable names

DLMS COSEM Protocol Testset Push Support

  • Supports data notification (push) and automatic save push data to CSV file

DLMS COSEM Protocol Testset Ciphering

  • Supports Ciphering using suite (0) and suite (1)
  • Supports key transfer with/without the key wrap

DLMS COSEM Protocol Testset Firmware Update

  • Firmware update using image transfer
  • Resume firmware update from last failed block

DLMSCOSEM Protocol Testset Object list

  • Download object list from the meter
  • Manually create object list by user
  • Compare object list with reference object list and highlight mismatches
  • Save object list to CSV file

DLMS COSEM Protocol Testset Profile

  • Supports all types of Profile objects
  • Supports configuring scaler and unit for profile capture objects
  • Supports manual/automatic saving of profile buffer to CSV file

OPC data access server support for integration with OPC client applications
Insert data to database feature available on the support
Manual (on-demand) as well as automatic (schedule-based) reading from the meter
Traffic view and save as text file for communication analysis

ASEDLMS DLMS COSEM Protocol Testset is a DLMS COSEM Client application enabling users to communicate with the DLMS COSEM server (meter/gateway/data concentrator). ASEDLMS DLMS COSEM Protocol Testset is an ideal fit for DLMS COSEM meter testing as well as for small scale meter data acquisition applications. Some common applications of DLMS COSEM Protocol Testset software are listed below:

  • Meter testing & troubleshooting: ASEDLMS DLMS COSEM Protocol Testset allows users to test the functionality of DLMS COSEM servers implemented in a meter/gateway/ data concentrator by performing various DLMS COSEM operations and monitoring the data and results. The traffic module supports detailed communication analysis as well as saving the traffic logs as test evidence or for sharing with others for troubleshooting.
  • Automated meter reading: Multiple data objects can be grouped together with a periodic scan rate based on which ASEDLMS DLMS COSEM Protocol Testset would automatically initiate reading the configured data objects from meter/gateway / Data concentrator. Data received would be saved automatically to TXT or CSV file. SQL Database insertion feature can be provided upon request.

Click here to download relevant versions/drivers/release notes for ASEDLMS DLMS COSEM Protocol Testset