The two serial protocol flavours are implemented in the MbusRtuMasterProtocol and MbusAsciiMasterProtocol class. More...
Classes | |
| class | TMbusRtuMasterProtocol |
| Modbus RTU Master Protocol class. More... | |
| class | TMbusAsciiMasterProtocol |
| Modbus ASCII Master Protocol class. More... | |
The two serial protocol flavours are implemented in the MbusRtuMasterProtocol and MbusAsciiMasterProtocol class.
These classes provide functions to open and to close serial port as well as data and control functions which can be used at any time after a protocol has been opened. The data and control functions are organized different conformance classes. For a more detailed description of the data and control functions see section Data and Control Functions for all Modbus Protocol Flavours.
Using multiple instances of a MbusRtuMasterProtocol or MbusAsciiMasterProtocol class enables concurrent protocol transfers on multiple COM ports (They should be executed in separate threads).
See sections The RTU Protocol and The ASCII Protocol for some background information about the two serial Modbus protocols.
See section Using Serial Protocols for an example how to use the MbusRtuMasterProtocol class.