Meggitt vibro-meter SpeedSys300 ODS301, User Manual

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Document reference MAODS301/E USER MANUAL
Edition 4 - May 2022 SpeedSys300 ODS301 overspeed detection system
6 - 3
Modbus register definitions
MODBUS COMMUNICATIONS WITH A SPEEDSYS300 ODS301
In general, the Modbus RTU protocol can be used with half-duplex or full - duplex serial
interfaces, however, the SpeedSys300 ODS301 module’s interface supports half-duplex
(2-wire) only.
The default SpeedSys300 ODS301 module communication parameter settings are given in
6.1 Introduction .
6.3 Modbus register definitions
For detailed Modbus register definitions and mapping information, see Appendix F:
SpeedSys300 ODS301 Modbus register definitions .