Man L23/30DF Project Manual page 308

MAN Diesel & Turbo
Table of Contents
1 Data Bus Interface (Machinery Alarm System) ................................................................ 1
2 Modbus RTU protocol ......................................................................................................... 2
2.1 Settings ..................................................................................................................................... 2
2.2 Function Codes ......................................................................................................................... 2
2.3 Message Frame Separation ....................................................................................................... 3
2.4 Provided Data ........................................................................................................................... 3
2.4.1 Contents of List of Signals ......................................................................................................... 3
2.4.2 Live Bit ...................................................................................................................................... 3
3 Modbus ASCII protocol ...................................................................................................... 4
3.1 General ..................................................................................................................................... 4
3.2 Protocol Description .................................................................................................................. 4
3.3 Data Format .............................................................................................................................. 6
4 Extended operating hour counters via MODBUS ............................................................... 8
5 Modbus list ......................................................................................................................... 9