public async Task TestUShort() { var factory = new ModbusFactory(); IModbusMaster modbus = factory.CreateMaster(_client); await _client.ConnectAsync(MODBUS_IP, MODBUS_PORT); ushort?data = await modbus.ReadUShortAsync(MODBUS_SLAVE, 0); Assert.NotNull(data); await modbus.WriteUShortAsync(MODBUS_SLAVE, 0, 2); data = await modbus.ReadUShortAsync(MODBUS_SLAVE, 0); Assert.NotNull(data); Assert.Equal((ushort)2, data); await modbus.WriteUShortAsync(MODBUS_SLAVE, 0, 0); data = await modbus.ReadUShortAsync(MODBUS_SLAVE, 0); Assert.NotNull(data); Assert.Equal((ushort)0, data); data = await modbus.ReadOnlyUShortAsync(MODBUS_SLAVE, 0); Assert.NotNull(data); }