Elexon explains what testing needs to be undertaken before a product can be approved as a CMS Equivalent Meter under the BSC's Unmetered Supplies UMS arrangements.

10.0

<div data-id="purpose" style="text-align:left">Purpose</div>

<div data-id="1-1.1" style="text-align:left">1.1 Scope</div>

<div data-id="1-1.2" style="text-align:left">1.2 Approval Process</div>

<div data-id="1" style="text-align:left">1. Introduction</div>

<html><head></head><body><div data-id="2-2.1" style="text-align:left">2.1 What is the difference between a Central Management <u class="defined-term">System</u> and a measured Central Management <u class="defined-term">System</u> (mCMS)?</div></body></html>

<div data-id="2-2.2" style="text-align:left">2.2 What are Unmetered Supplies under the BSC?</div>

<div data-id="2-2.3" style="text-align:left">2.3 What is the Unmetered Supplies Operator (UMSO)?</div>

<div data-id="2-2.4" style="text-align:left">2.4 What is a detailed inventory?</div>

<html><head></head><body><div data-id="2-2.5" style="text-align:left">2.5 What is a <u class="defined-term"><u class="defined-term">Meter</u> Administrator</u> (MA)?</div></body></html>

<div data-id="2-2.6" style="text-align:left">2.6 What is an Unmetered Supplies Data Service (UMSDS)?</div>

<div data-id="2-2.7" style="text-align:left">2.7 What is a CMS Test Agent?</div>

<html><head></head><body><div data-id="2-2.8" style="text-align:left">2.8 What are Charge <u class="defined-term">Code</u>s?</div></body></html>

<html><head></head><body><div data-id="2-2.9" style="text-align:left">2.9 What is a CMS Controller Charge <u class="defined-term">Code</u>?</div></body></html>

<div data-id="2-2.10" style="text-align:left">2.10 What are Switch Regimes?</div>

<html><head></head><body><div data-id="2-2.11" style="text-align:left">2.11 What is an <u class="defined-term">Equivalent <u class="defined-term">Meter</u></u> (EM)?</div></body></html>

<html><head></head><body><div data-id="2-2.12" style="text-align:left">2.12 What is a Sub-<u class="defined-term">Meter</u>?</div></body></html>

<div data-id="2-2.13" style="text-align:left">2.13 What is a CMS Unit Reference?</div>

<div data-id="2-2.14" style="text-align:left">2.14 What is a Control File?</div>

<div data-id="2-2.15" style="text-align:left">2.15 What is an Event Log?</div>

<div data-id="2-2.16" style="text-align:left">2.16 What is Event Log Version control?</div>

<div data-id="2-2.17" style="text-align:left">2.17 How is percentage power reported in an Event Log?</div>

<div data-id="2" style="text-align:left">2. Understanding CMS Terminology</div>

<div data-id="3" style="text-align:left">3 Test Approach, Environment and Data Requirements</div>

<div data-id="4-4.1-4.1.1" style="text-align:left">4.1.1 Scenario 1 – Switch Regime 999</div>

<div data-id="4-4.1-4.1.2" style="text-align:left">4.1.2 Scenario 2 – Switch Regime 998</div>

<div data-id="4-4.1-4.1.3" style="text-align:left">4.1.3 Scenario 3 – Control Failure for Multiple CMS Unit References</div>

<div data-id="4-4.1-4.1.4" style="text-align:left">4.1.4 Scenario 4 – Revised Data after Control Failure (following day)</div>

<html><head></head><body><div data-id="4-4.1" style="text-align:left">4.1 Test Scenarios for Central Management <u class="defined-term">System</u>s used to control lighting</div></body></html>

<div data-id="4-4.2-4.2.1" style="text-align:left">4.2.1 Scenario 1 – On and Off test</div>

<div data-id="4-4.2-4.2.2" style="text-align:left">4.2.2 Scenario 2 – Two Events with Disconnection in Between</div>

<div data-id="4-4.2-4.2.3" style="text-align:left">4.2.3 Scenario 3 – No Connection, No <u class='defined-term'>Consumption</u></div>

<div data-id="4-4.2-4.2.4" style="text-align:left">4.2.4 Scenario 4 – Connection, No <u class='defined-term'>Consumption</u></div>

<div data-id="4-4.2-4.2.5" style="text-align:left">4.2.5 Scenario 5 – <u class='defined-term'>Consumption</u> Over Midnight</div>

<div data-id="4-4.2-4.2.6" style="text-align:left">4.2.6 Scenario 6 – <u class='defined-term'>Communication</u>s Failure</div>

<html><head></head><body><div data-id="4-4.2" style="text-align:left">4.2 Test Scenarios for measured Central Management <u class="defined-term">System</u>s</div></body></html>

<html><head></head><body><div data-id="4" style="text-align:left">4 Key Test Scenarios for Central Management <u class="defined-term">System</u>s</div></body></html>

<html><head></head><body><div data-id="5-5.1" style="text-align:left">5.1 <u class="defined-term">System</u> Requirements</div></body></html>

<div data-id="5-5.2" style="text-align:left">5.2 Data Input and Storage Requirements</div>

<div data-id="5-5.3" style="text-align:left">5.3 Process Requirements</div>

<div data-id="5-5.4" style="text-align:left">5.4 Data Output Requirements</div>

<div data-id="5" style="text-align:left">5. Requirements Test Checklist</div>

<div data-id="6" style="text-align:left">6. Test Group Summary</div>

<div data-id="appendix-a--terms-used-in-this-document" style="text-align:left">Appendix A – Terms used in this Document</div>

<div data-id="need-more-information" style="text-align:left">Need more information?</div>

<div data-id="7" style="text-align:left">7. Recording Test Results</div>

CONTENTS

Central Management System Equivalent Meter Test Specification V10.0

Defined Terms

Cross-references