| BusProtocolException | Communication Error |
| ChecksumException | Checksum error |
| Converter | Conversion Routines |
| EvaluationExpiredException | Evaluation expired error |
| InvalidFrameException | Invalid frame error |
| InvalidMbapIdException | Invalid MPAB indentifer |
| InvalidReplyException | Invalid reply error |
| Logger | Logger class |
| MbusAsciiMasterProtocol | Modbus ASCII Master Protocol class |
| MbusElamMasterProtocol | Extended Lufkin Automation Modbus Master Protocol |
| MbusIllegalAddressException | Illegal Data Address exception response |
| MbusIllegalFunctionException | Illegal Function exception response |
| MbusIllegalValueException | Illegal Data Value exception response |
| MbusMasterFunctions | Base class which implements Modbus data and control functions |
| MbusResponseException | Modbus exception response |
| MbusRtuMasterProtocol | Modbus RTU Master Protocol class |
| MbusRtuOverTcpMasterProtocol | Encapsulated Modbus RTU Master Protocol class |
| MbusSerialMasterProtocol | Base class for serial serial master protocols |
| MbusSlaveFailureException | Slave Device Failure exception response |
| MbusTcpMasterProtocol | MODBUS/TCP Master Protocol class |
| ReplyTimeoutException | Reply time-out |
| Version | Version class |