5Chapter 1 Preface
Searchline Excel™ Plus / Searchline Excel™ Edge – Technical Manual
Section Page
10 Communications 64
10.1HART® 64
10.1.1Searchline Excel Plus & Searchline Excel Edge HART Interface 64
10.2Menu Structure 65
10.2.1Selecting the Gas Reading Units 69
10.3Commissioning using HART DTM Communications 69
10.3.1First Time Switch On 70
10.3.2User Configuration 70
10.3.3Configure Warning, Inhibit and Over-range Signal Levels 71
10.3.4Configure Device Identification Information 71
10.3.5Test 420 mA Loop Integrity 72
10.3.6Configure Internal Alarm Threshold 72
10.3.7Clear Alarm Latch 73
10.4Maintenance using HART Communications 73
10.4.1Inspection 73
10.4.2Proof Test (Gas Leak Challenge) 74
10.4.3Investigation of Faults or Warnings 74
10.5Modbus 75
10.5.1Programming the Host 75
10.5.2Addressing Conventions and Register Values 75
10.5.3Modbus Cables 75
10.5.4Modbus Electrical Connections 75
10.5.5Modbus Termination Resistor 75
10.5.6Modbus MultiDrop Mode 76
10.5.7Modbus Protocol 76
10.5.8Modbus Registers 76
11 Problem Solving 81
11.1Introduction 81
11.2Problem Solving 82
12 Certification and Approvals 87
12.1ATEX and UKCA Certification 87
12.2IECEx Certification 87
12.3cULus Certification 87
12.4INMETRO Certification 88
12.5Labelling 88
12.6EU Declaration of Conformity 88
12.7RoHS 89
12.8China RoHS 89
12.9WEEE 89
12.10EMC 89
12.11RED 89
12.12REACH 89
12.13FCC 89
12.14IC 90
12.15Export Compliance Classification 90
12.16Wireless Approvals 90
12.17Bluetooth® 90
13 Ordering Information 91
14 Specifications 92
15 Product Warranty 95