Protocol Operation APM603 Communication Protocol Controller: APM603 Includes Modbus® SNMP BACnet® TP-7151 9/19 2 TP-7151 9/19 Table of Contents Safety Precautions and Instructions ........................................................................................................................................ 5 Introduction ................................................................................................................................................................................ 7 Service Assistance..................................................................................................................................................................... 8 Section 1. Modbus Protocol ...................................................................................................................................... 9 1.1 Introduction .............................................................................................................................................................. 9 1.2 Modbus/RS-485 Serial Communication: .................................................................................................................. 9 1.2.1 Serial Settings ............................................................................................................................................ 9 1.2.2 Modbus RTU Connections ....................................................................................................................... 10 1.3 Modbus/RJ45 Ethernet Connections ...................................................................................................................... 11 1.4 Controller Setup ..................................................................................................................................................... 12 1.5 Modbus Protocol Definitions ................................................................................................................................... 14 1.6 Modbus Functions and Exception Codes ............................................................................................................... 15 1.7 Modbus Registers .................................................................................................................................................. 17 1.7.1 Event Coils ............................................................................................................................................... 17 1.7.2 Holding Registers ..................................................................................................................................... 21 Section 2. Simple Network Management Protocol (SNMP) .................................................................................. 23 2.1 Description ............................................................................................................................................................. 23 2.1.1 SNMP Basic Components and their Functionalities ................................................................................. 23 2.1.2 Commands/Messages ............................................................................................................................. 25 2.2 Setup ...................................................................................................................................................................... 26 2.2.1 Configuration Steps ................................................................................................................................. 27 2.2.2 Reading Parameter Values ...................................................................................................................... 29 2.2.3 Trap Receiver .......................................................................................................................................... 31 2.3 Diagnostics ............................................................................................................................................................. 34 2.4 Parameters ............................................................................................................................................................. 35 2.4.1 SNMP walk .............................................................................................................................................. 35 2.4.2 Parameters and Data Types .................................................................................................................... 36 Section 3. BACnet® Protocol .................................................................................................................................. 37 3.1 BACnet general info ............................................................................................................................................... 37 3.2 BACnet IP Parameter Descriptions ........................................................................................................................ 37 3.2.1 Ethernet Common Settings ...................................................................................................................... 37 3.2.2 BACnet IP settings ................................................................................................................................... 38 3.3 Connection ............................................................................................................................................................. 38 3.4 Start-up .................................................................................................................................................................. 39 3.4.1 Initializing the APM603 BACnet ............................................................................................................... 39 3.5 Technical Data ....................................................................................................................................................... 40 3.5.1 Protocol Implementation Conformance Statement (PICS) ....................................................................... 40 3.5.2 Object Definitions ..................................................................................................................................... 41 Appendix A. Abbreviations ......................................................................................................................................... 49 Appendix B. Noise and Wiring Practices ................................................................................................................... 53 Appendix C. Network Connection Diagrams ............................................................................................................. 54 TP-7151 9/19 3 4 TP-7151 9/19 Safety Precautions and Instructions IMPORTANT SAFETY INSTRUCTIONS. Electromechanical equipment, including generator sets, transfer switches, switchgear, and accessories, can cause bodily harm and pose life-threatening danger when improperly installed, operated, or maintained. To prevent accidents be aware of potential dangers and act safely. Read and follow all safety precautions and instructions. SAVE THESE INSTRUCTIONS. This manual has several types of safety precautions and instructions: Danger, Warning, Caution, and Notice. DANGER Danger indicates the presence of a hazard that will cause severe personal injury, death, or substantial property damage. WARNING Warning indicates the presence of a hazard that can cause severe personal injury, death, or substantial property damage. CAUTION Caution indicates the presence of a hazard that will or can cause minor personal injury or property damage. NOTICE Notice communicates installation, operation, or maintenance information that is safety related but not hazard related. Safety decals affixed to the equipment in prominent places alert the operator or service technician to potential hazards and explain how to act safely. The decals are shown throughout this publication to improve operator recognition. Replace missing or damaged decals. Accidental Starting WARNING Accidental starting. Can cause severe injury or death. Disconnect the battery cables before working on the generator set. Remove the negative (–) lead first when disconnecting the battery. Reconnect the negative (–) lead last when reconnecting the battery. Disabling the generator set. Accidental starting can cause severe injury or death. Before working on the generator set or equipment connected to the set, disable the generator set as follows: (1) Press the generator set off/reset button to shut down the generator set. (2) Disconnect the power to the battery charger, if equipped. (3) Remove the battery cables, negative (–) lead first. Reconnect the negative (–) lead last when reconnecting the battery. Follow these precautions to prevent the starting of the generator set by the remote start/stop switch. TP-7151 9/19 5 Hazardous Voltage/Moving Parts DANGER Hazardous voltage. Will cause severe injury or death. Disconnect all power sources before opening the enclosure. DANGER Hazardous voltage. Moving parts. Will cause severe injury or death. Operate the generator set only when all guards and electrical enclosures are in place. 6 TP-7151 9/19 Introduction This manual provides instructions for using the following communication protocols with the APM603 controller: • Modbus® RTU and TCP • Simple Network Management Protocol (SNMP) • BACnet® Information in this publication