ABB LVS Digital, Руководство пользователя

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TABLE OF CONTENTS
II
7.7.3. Confirm operation .................................................................................................. 43
8. Function Codes ........................................................................................................................ 44
8.1. Message Format ....................................................................................................................... 44
8.1.1. Query Messages ...................................................................................................... 44
8.1.2. Response Messages ............................................................................................... 44
8.2. Function Code 02 – Read Input Status ................................................................................. 45
8.3. Function Code 03 – Read Holding Registers ....................................................................... 45
8.4. Function Code 04 – Read Input Registers ........................................................................... 45
8.5. Data Presentation for Function Code 03 and 04 ............................................................... 46
8.6. Function Code 06 – Preset Single Register ......................................................................... 46
8.7. Function Code 08 – Preset Single Register ......................................................................... 46
8.8. Function Code 16 – Preset Multiple Register ...................................................................... 47
8.9. Restrictions ................................................................................................................................ 47
8.9.1. General ....................................................................................................................... 47
8.9.2. Modbus RTU ............................................................................................................. 47
8.10. Exception Code Handling ........................................................................................................ 48
9. Data Mapping ........................................................................................................................... 49
9.1. User Data Map ........................................................................................................................... 49
9.2. Default Data Map ...................................................................................................................... 49
9.2.1. Monitoring (Inputs from M10x) ............................................................................ 49
9.2.2. Monitoring with Function Code 02 ..................................................................... 50
9.2.3. Monitoring with Function Code 03 and 04 ....................................................... 55
9.2.4. Extended Status Description ............................................................................... 56
9.2.5. Control Commands ................................................................................................. 59
9.2.6. Switching Commands ............................................................................................ 60
9.2.7. Switching Commands
– Bit Control
...................................................................... 61
9.2.8. Redundant Digital Gateway Modbus Data ........................................................ 62
9.2.9. Control Access ......................................................................................................... 63
10. Troubleshooting and Maintenance ........................................................................................ 65
10.1. Digital Gateway LED Indication ............................................................................................. 65
10.2. Troubleshooting ........................................................................................................................ 68