1.1 Introduction.......................................................................................................................................... 11

1.2 Controllers ........................................................................................................................................... 15

1.3 IONet Switches ..................................................................................................................................... 16

1.4 Distributed I/O Modules.......................................................................................................................... 16

1.5 Power Distribution................................................................................................................................. 36

1.6 Redundancy Options .............................................................................................................................. 37

1.7 Reliability and Availability ...................................................................................................................... 49

1.8 Component Part Numbers and Serial Numbers/Barcodes ............................................................................... 57

2 Functional Safety............................................................................................................................ 67

2.1 Safety Instrumented System (SIF)............................................................................................................. 68

2.2 Risk Reduction...................................................................................................................................... 69

2.3 Safety System Redundancy Options .......................................................................................................... 70

3 Ethernet Networks.......................................................................................................................... 75

3.1 Introduction.......................................................................................................................................... 75

3.2 IONet Layer ......................................................................................................................................... 80

3.3 Unit Control Layer................................................................................................................................. 86

3.4 Supervisory Layer.................................................................................................................................. 91

3.5 Monitoring Layer................................................................................................................................... 92

3.6 Enterprise Layer .................................................................................................................................... 93

3.7 Ethernet Cabling for Monitoring, Supervisory, and Unit Control Layers ........................................................... 94

3.8 Third-party Communication Links ............................................................................................................ 98

4 Communication Protocols ........................................................................................................... 99

4.1 OPC Protocols .....................................................................................................................................101

4.2 WorkstationST GSM Protocol .................................................................................................................104

4.3 Modbus Protocol ..................................................................................................................................106

4.4 Ethernet Global Data (EGD) ...................................................................................................................109

4.5 System Data Interface (SDI) Protocol .......................................................................................................111

4.6 Network Time Protocol (NTP) ................................................................................................................112

4.7 Fieldbus Communications ......................................................................................................................115

5 Technical Regulations, Standards, and Environment ........................................................ 117

5.1 Safety Standards...................................................................................................................................117

5.2 Conditions for Compliance .....................................................................................................................118

5.3 Electrical.............................................................................................................................................119

5.4 Environment ........................................................................................................................................121

6 Installation Guidelines ................................................................................................................127

6.1 Installation Support ...............................................................................................................................127

6.2 Equipment Receiving and Handling .........................................................................................................130

6.3 Power Requirements .............................................................................................................................132

6.4 Installation Support Drawings .................................................................................................................134

6.5 Grounding ...........................................................................................................................................134

6.6 Cable Separation and Routing .................................................................................................................143

6.7 Power and I/O Field Wiring ....................................................................................................................149

Public Information

GEH-6721_Vol_I_BP System Guide 9